{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:39:07.695Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "affected": [
          {
            "defaultStatus": "unknown",
            "product": "RUGGEDCOM RST2428P",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XCH328",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XCM324",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XCM328",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XCM332",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XRH334 (24 V DC, 8xFO, CC)",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XRM334 (230 V AC, 12xFO)",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XRM334 (230 V AC, 8xFO)",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XRM334 (230V AC, 2x10G, 24xSFP, 8xSFP+)",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XRM334 (24 V DC, 12xFO)",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XRM334 (24 V DC, 8xFO)",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XRM334 (24V DC, 2x10G, 24xSFP, 8xSFP+)",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XRM334 (2x230 V AC, 12xFO)",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XRM334 (2x230 V AC, 8xFO)",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XRM334 (2x230V AC, 2x10G, 24xSFP, 8xSFP+)",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.5",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.5",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.5",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.5",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.5",
                "versionType": "custom"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-14T12:42:12.863Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
          "shortName": "siemens-SADP"
        },
        "references": [
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"
          },
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-089022.html"
          }
        ],
        "x_adpType": "supplier"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-38498",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-10T20:40:25.674803Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-11T18:44:01.122Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/namespace.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "787937c4e373f1722c4343e5a5a4eb0f8543e589",
              "status": "affected",
              "version": "07b20889e3052c7e77d6a6a54e7e83446eb1ba84",
              "versionType": "git"
            },
            {
              "lessThan": "c7d11fdf8e5db5f34a6c062c7e6ba3a0971879d2",
              "status": "affected",
              "version": "07b20889e3052c7e77d6a6a54e7e83446eb1ba84",
              "versionType": "git"
            },
            {
              "lessThan": "432a171d60056489270c462e651e6c3a13f855b1",
              "status": "affected",
              "version": "07b20889e3052c7e77d6a6a54e7e83446eb1ba84",
              "versionType": "git"
            },
            {
              "lessThan": "064014f7812744451d5d0592f3d2bcd727f2ee93",
              "status": "affected",
              "version": "07b20889e3052c7e77d6a6a54e7e83446eb1ba84",
              "versionType": "git"
            },
            {
              "lessThan": "4f091ad0862b02dc42a19a120b7048de848561f8",
              "status": "affected",
              "version": "07b20889e3052c7e77d6a6a54e7e83446eb1ba84",
              "versionType": "git"
            },
            {
              "lessThan": "9c1ddfeb662b668fff69c5f1cfdd9f5d23d55d23",
              "status": "affected",
              "version": "07b20889e3052c7e77d6a6a54e7e83446eb1ba84",
              "versionType": "git"
            },
            {
              "lessThan": "19554c79a2095ddde850906a067915c1ef3a4114",
              "status": "affected",
              "version": "07b20889e3052c7e77d6a6a54e7e83446eb1ba84",
              "versionType": "git"
            },
            {
              "lessThan": "12f147ddd6de7382dad54812e65f3f08d05809fc",
              "status": "affected",
              "version": "07b20889e3052c7e77d6a6a54e7e83446eb1ba84",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/namespace.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.15"
            },
            {
              "lessThan": "2.6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.295",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.239",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.186",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.142",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.94",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.34",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.295",
                  "versionStartIncluding": "2.6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.239",
                  "versionStartIncluding": "2.6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.186",
                  "versionStartIncluding": "2.6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.142",
                  "versionStartIncluding": "2.6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.94",
                  "versionStartIncluding": "2.6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.34",
                  "versionStartIncluding": "2.6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.3",
                  "versionStartIncluding": "2.6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16",
                  "versionStartIncluding": "2.6.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndo_change_type(): refuse to operate on unmounted/not ours mounts\n\nEnsure that propagation settings can only be changed for mounts located\nin the caller\u0027s mount namespace. This change aligns permission checking\nwith the rest of mount(2)."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerable do_change_type() is reached only through the local mount(2) syscall (path_mount \u2192 do_change_type); there is no remote or adjacent network path.\nAC:L - The attacker both creates the detached/anonymous \"not ours\" mount (open_tree(OPEN_TREE_CLONE)/fsmount) and issues the mount(MS_SHARED/\u2026) call, so the trigger is fully deterministic with no race or condition outside their control.\nPR:L - The only gate is may_mount() = CAP_SYS_ADMIN in the mount namespace\u0027s user namespace, which an unprivileged user obtains via unshare -Urn, so no real root is required.\nUI:N - The entire sequence is performed by the attacker\u0027s own process with no action from any other user.\nS:U - The corruption is confined to the kernel\u0027s own mount subsystem and does not cross into a separately managed security authority such as a hypervisor.\nC:H - Manipulating the propagation graph of foreign/unmounted mounts creates dangling links to freed struct mount objects (UAF class), which can be leveraged to read reclaimed kernel memory.\nI:H - The bug lets an attacker mutate propagation state of mounts outside their namespace and corrupt cross-namespace peer/slave lists, a UAF-class primitive usable for arbitrary kernel writes.\nA:H - The resulting dangling pointers in mnt_share/mnt_slave lists and group_id lifecycle lead to kernel oops/panic on subsequent mount teardown."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:02:25.180Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/787937c4e373f1722c4343e5a5a4eb0f8543e589"
        },
        {
          "url": "https://git.kernel.org/stable/c/c7d11fdf8e5db5f34a6c062c7e6ba3a0971879d2"
        },
        {
          "url": "https://git.kernel.org/stable/c/432a171d60056489270c462e651e6c3a13f855b1"
        },
        {
          "url": "https://git.kernel.org/stable/c/064014f7812744451d5d0592f3d2bcd727f2ee93"
        },
        {
          "url": "https://git.kernel.org/stable/c/4f091ad0862b02dc42a19a120b7048de848561f8"
        },
        {
          "url": "https://git.kernel.org/stable/c/9c1ddfeb662b668fff69c5f1cfdd9f5d23d55d23"
        },
        {
          "url": "https://git.kernel.org/stable/c/19554c79a2095ddde850906a067915c1ef3a4114"
        },
        {
          "url": "https://git.kernel.org/stable/c/12f147ddd6de7382dad54812e65f3f08d05809fc"
        }
      ],
      "title": "do_change_type(): refuse to operate on unmounted/not ours mounts",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38498",
    "datePublished": "2025-07-30T06:03:36.483Z",
    "dateReserved": "2025-04-16T04:51:24.022Z",
    "dateUpdated": "2026-08-05T12:02:25.180Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:42:28.746Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "affected": [
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC CN 4100",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V5.0",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.5",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.5",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.5",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.5",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.5",
                "versionType": "custom"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-14T12:42:40.704Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
          "shortName": "siemens-SADP"
        },
        "references": [
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"
          },
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"
          }
        ],
        "x_adpType": "supplier"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-39697",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-10T20:42:24.236193Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-11T18:44:22.767Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/nfs/pagelist.c",
            "fs/nfs/write.c",
            "include/linux/nfs_page.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "0ff42a32784e0f2cb46a46da8e9f473538c13e1b",
              "status": "affected",
              "version": "bd37d6fce184836bd5e7cd90ce40116a4fadaf2a",
              "versionType": "git"
            },
            {
              "lessThan": "f230d40147cc37eb3aef4d50e2e2c06ea73d9a77",
              "status": "affected",
              "version": "bd37d6fce184836bd5e7cd90ce40116a4fadaf2a",
              "versionType": "git"
            },
            {
              "lessThan": "c32e3c71aaa1c1ba05da88605e2ddd493c58794f",
              "status": "affected",
              "version": "bd37d6fce184836bd5e7cd90ce40116a4fadaf2a",
              "versionType": "git"
            },
            {
              "lessThan": "181feb41f0b268e6288bf9a7b984624d7fe2031d",
              "status": "affected",
              "version": "bd37d6fce184836bd5e7cd90ce40116a4fadaf2a",
              "versionType": "git"
            },
            {
              "lessThan": "92278ae36935a54e65fef9f8ea8efe7e80481ace",
              "status": "affected",
              "version": "bd37d6fce184836bd5e7cd90ce40116a4fadaf2a",
              "versionType": "git"
            },
            {
              "lessThan": "202a3432d21ac060629a760fff3b0a39859da3ea",
              "status": "affected",
              "version": "bd37d6fce184836bd5e7cd90ce40116a4fadaf2a",
              "versionType": "git"
            },
            {
              "lessThan": "76d2e3890fb169168c73f2e4f8375c7cc24a765e",
              "status": "affected",
              "version": "bd37d6fce184836bd5e7cd90ce40116a4fadaf2a",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/nfs/pagelist.c",
            "fs/nfs/write.c",
            "include/linux/nfs_page.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.14"
            },
            {
              "lessThan": "4.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.242",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.191",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.150",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.104",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.44",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.242",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.191",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.150",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.104",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.44",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.4",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFS: Fix a race when updating an existing write\n\nAfter nfs_lock_and_join_requests() tests for whether the request is\nstill attached to the mapping, nothing prevents a call to\nnfs_inode_remove_request() from succeeding until we actually lock the\npage group.\nThe reason is that whoever called nfs_inode_remove_request() doesn\u0027t\nnecessarily have a lock on the page group head.\n\nSo in order to avoid races, let\u0027s take the page group lock earlier in\nnfs_lock_and_join_requests(), and hold it across the removal of the\nrequest in nfs_inode_remove_request()."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerable code is in the NFS client\u0027s buffered-write path and is reached through local `write(2)`/mmap dirtying plus writeback-forcing syscalls (`fsync`, `sync_file_range`, `ftruncate`); a purely remote party cannot create the required local writer, though a malicious NFS server can precisely time the racing removal side via its RPC replies.\nAC:L - The attacker controls both sides of the race \u2014 one thread issues overlapping buffered writes to the same folio while another forces writeback/invalidation \u2014 and can retry the loop indefinitely with no precondition outside their control; server-induced short writes or errors widen the window further.\nPR:L - Only an unprivileged local account with write access to any file on an NFS mount is required, which is the norm on NFS-backed home directories, HPC scratch, and container/Kubernetes NFS volumes.\nUI:N - The attacker\u0027s own process performs all the writes, writeback triggers, and truncation; no action by any other user is needed beyond the NFS mount already existing.\nS:U - The corruption and resulting crash are confined to the kernel\u0027s own security authority on the affected host; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Detaching the folio from NFS\u0027s private bookkeeping while requests are still live breaks the writeback-state invariant, allowing mismatched `folio_start/end_writeback` and stale `req-\u003ewb_head`/folio references so freed or recycled page contents can be transmitted to the server and read back, and truncated-mapping pointers are dereferenced.\nI:H - Writes acknowledged to userspace are silently discarded \u2014 the merged request is detached and freed while the folio\u0027s dirty bit is consumed by writeback with no RPC sent \u2014 corrupting NFS file data for any process on the client, and kernel request/refcount/`nrequests` state is left inconsistent.\nA:H - The zombie request lets the folio be truncated or reclaimed with `folio-\u003emapping` set to NULL while completion paths unconditionally dereference `folio-\u003emapping-\u003ehost` (`nfs_page_to_inode`, `nfs_inode_remove_request`, `nfs_folio_end_writeback`), producing a kernel oops, and the `WARN_ON_ONCE` splats panic systems running `panic_on_warn`."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:04:38.839Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0ff42a32784e0f2cb46a46da8e9f473538c13e1b"
        },
        {
          "url": "https://git.kernel.org/stable/c/f230d40147cc37eb3aef4d50e2e2c06ea73d9a77"
        },
        {
          "url": "https://git.kernel.org/stable/c/c32e3c71aaa1c1ba05da88605e2ddd493c58794f"
        },
        {
          "url": "https://git.kernel.org/stable/c/181feb41f0b268e6288bf9a7b984624d7fe2031d"
        },
        {
          "url": "https://git.kernel.org/stable/c/92278ae36935a54e65fef9f8ea8efe7e80481ace"
        },
        {
          "url": "https://git.kernel.org/stable/c/202a3432d21ac060629a760fff3b0a39859da3ea"
        },
        {
          "url": "https://git.kernel.org/stable/c/76d2e3890fb169168c73f2e4f8375c7cc24a765e"
        }
      ],
      "title": "NFS: Fix a race when updating an existing write",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39697",
    "datePublished": "2025-09-05T17:21:03.178Z",
    "dateReserved": "2025-04-16T07:20:57.115Z",
    "dateUpdated": "2026-08-05T12:04:38.839Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:42:30.669Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "affected": [
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC CN 4100",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V5.0",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-12T12:06:24.521Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
          "shortName": "siemens-SADP"
        },
        "references": [
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"
          }
        ],
        "x_adpType": "supplier"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/ipv6/seg6_hmac.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ff55a452d56490047f5233cc48c5d933f8586884",
              "status": "affected",
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "versionType": "git"
            },
            {
              "lessThan": "3b348c9c8d2ca2c67559ffd0e258ae7e1107d4f0",
              "status": "affected",
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "versionType": "git"
            },
            {
              "lessThan": "86b6d34717fe0570afce07ee79b8eeb40341f831",
              "status": "affected",
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "versionType": "git"
            },
            {
              "lessThan": "3ddd55cf19ed6cc62def5e3af10c2a9df1b861c3",
              "status": "affected",
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "versionType": "git"
            },
            {
              "lessThan": "b3967c493799e63f648e9c7b6cb063aa2aed04e7",
              "status": "affected",
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "versionType": "git"
            },
            {
              "lessThan": "f7878d47560d61e3f370aca3cebb8f42a55b990a",
              "status": "affected",
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "versionType": "git"
            },
            {
              "lessThan": "a458b2902115b26a25d67393b12ddd57d1216aaa",
              "status": "affected",
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/ipv6/seg6_hmac.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.10"
            },
            {
              "lessThan": "4.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.249",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.190",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.149",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.103",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.44",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.249",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.190",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.149",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.103",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.44",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.4",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: sr: Fix MAC comparison to be constant-time\n\nTo prevent timing attacks, MACs need to be compared in constant time.\nUse the appropriate helper function for this."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The vulnerable comparison sits in the IPv6 Segment Routing Header receive path (`ipv6_srh_rcv()` and the seg6_local behaviors), processing routed IPv6 packets from any remote source. SRv6 packets are not link-local, so an attacker anywhere on the network can drive the oracle.\nAC:L - The attacker controls both sides of the measurement \u2014 the candidate MAC bytes and an unlimited, self-paced stream of probe packets \u2014 so the byte-at-a-time `memcmp` leak can be amplified by repetition and statistical averaging, including jitter-immune concurrent-probe techniques. No condition depends on state the attacker cannot influence.\nPR:N - The HMAC validation is itself the authentication gate for the SR domain; nothing on the path from packet receive to `seg6_hmac_validate_skb()` checks any credential or capability. The attacker is an unauthenticated off-path/off-domain sender.\nUI:N - Exploitation requires only sending crafted SRv6 packets to the target; no victim action is involved.\nS:U - The forged authentication is consumed and acted upon within the same kernel networking authority that performs the check; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Forging the SRH MAC bypasses the SR-domain trust boundary, letting the attacker source-route packets to otherwise unreachable internal nodes and, via End.DT4/DT6/DX behaviors, into isolated tenant VRFs and L2 domains, with the return path steerable back to the attacker. The timing oracle additionally recovers secret-key-derived MAC values.\nI:H - A recovered MAC makes the kernel accept attacker-crafted segment lists as authentic, allowing arbitrary rewriting of forwarding paths and injection of spoofed traffic into tenant networks and internal L2 bridges \u2014 a complete authentication bypass of the SRv6 integrity mechanism.\nA:H - Forged segment lists can be built to loop packets repeatedly between SR nodes and to blackhole or misdirect legitimate traffic, disrupting forwarding for the node and the SR domain it serves."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:04:40.981Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ff55a452d56490047f5233cc48c5d933f8586884"
        },
        {
          "url": "https://git.kernel.org/stable/c/3b348c9c8d2ca2c67559ffd0e258ae7e1107d4f0"
        },
        {
          "url": "https://git.kernel.org/stable/c/86b6d34717fe0570afce07ee79b8eeb40341f831"
        },
        {
          "url": "https://git.kernel.org/stable/c/3ddd55cf19ed6cc62def5e3af10c2a9df1b861c3"
        },
        {
          "url": "https://git.kernel.org/stable/c/b3967c493799e63f648e9c7b6cb063aa2aed04e7"
        },
        {
          "url": "https://git.kernel.org/stable/c/f7878d47560d61e3f370aca3cebb8f42a55b990a"
        },
        {
          "url": "https://git.kernel.org/stable/c/a458b2902115b26a25d67393b12ddd57d1216aaa"
        }
      ],
      "title": "ipv6: sr: Fix MAC comparison to be constant-time",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39702",
    "datePublished": "2025-09-05T17:21:08.674Z",
    "dateReserved": "2025-04-16T07:20:57.115Z",
    "dateUpdated": "2026-08-05T12:04:40.981Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:42:44.024Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "affected": [
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC CN 4100",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V5.0",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-12T12:06:34.737Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
          "shortName": "siemens-SADP"
        },
        "references": [
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"
          }
        ],
        "x_adpType": "supplier"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/vmw_vsock/virtio_transport.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "969b06bd8b7560efb100a34227619e7d318fbe05",
              "status": "affected",
              "version": "baddcc2c71572968cdaeee1c4ab3dc0ad90fa765",
              "versionType": "git"
            },
            {
              "lessThan": "ee438c492b2e0705d819ac0e25d04fae758d8f8f",
              "status": "affected",
              "version": "71dc9ec9ac7d3eee785cdc986c3daeb821381e20",
              "versionType": "git"
            },
            {
              "lessThan": "faf332a10372390ce65d0b803888f4b25a388335",
              "status": "affected",
              "version": "71dc9ec9ac7d3eee785cdc986c3daeb821381e20",
              "versionType": "git"
            },
            {
              "lessThan": "676f03760ca1d69c2470cef36c44dc152494b47c",
              "status": "affected",
              "version": "71dc9ec9ac7d3eee785cdc986c3daeb821381e20",
              "versionType": "git"
            },
            {
              "lessThan": "0dab92484474587b82e8e0455839eaf5ac7bf894",
              "status": "affected",
              "version": "71dc9ec9ac7d3eee785cdc986c3daeb821381e20",
              "versionType": "git"
            },
            {
              "lessThan": "6.1.149",
              "status": "affected",
              "version": "6.1.63",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/vmw_vsock/virtio_transport.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "lessThan": "6.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.149",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.103",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.44",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.149",
                  "versionStartIncluding": "6.1.63",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.103",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.44",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.4",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock/virtio: Validate length in packet header before skb_put()\n\nWhen receiving a vsock packet in the guest, only the virtqueue buffer\nsize is validated prior to virtio_vsock_skb_rx_put(). Unfortunately,\nvirtio_vsock_skb_rx_put() uses the length from the packet header as the\nlength argument to skb_put(), potentially resulting in SKB overflow if\nthe host has gone wonky.\n\nValidate the length as advertised by the packet header before calling\nvirtio_vsock_skb_rx_put()."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The attack surface is the virtio-vsock RX virtqueue, which is host/hypervisor-local to the guest rather than network-reachable; vsock carries no routed network traffic. This matches the kernel CNA convention of AV:L for malicious-virtio-backend attacks on guest drivers.\nAC:L - The backend simply writes an arbitrary 32-bit value into the packet header\u0027s len field; no race, no memory-layout dependency, and the wraparound window that defeats skb_over_panic() is a fixed, deterministic 44-value range. Every trigger condition is fully under the attacker\u0027s control.\nPR:N - No privileges exist in the vulnerable component \u2014 the guest kernel \u2014 for the attacker to hold; virtio_transport_rx_work() consumes the buffer from a workqueue as soon as the device completes it, with no guest socket, user, or capability involved. Userspace VMMs (Firecracker, crosvm, vhost-user-vsock) are deliberately deprivileged, and under SEV-SNP/TDX/CCA the host is untrusted by design.\nUI:N - The RX work item processes the malicious buffer automatically on device completion, and the vsockmon tap path runs before any socket lookup. No guest user opens a socket, reads data, or performs any action.\nS:U - The vulnerable component and every impacted resource are the guest kernel and its own userspace, which share one security authority. Consistent with the S:U precedent for device\u2192guest virtio driver bugs (CVE-2026-46123, CVE-2026-64456, CVE-2026-64490); S:C in this subsystem has been reserved for guest\u2192host direction.\nC:H - A header len exceeding the bytes the device actually wrote makes skb_put() expose uninitialized kmalloc-8k slab contents, which recvmsg() copies straight to guest userspace, and the u32-wrap case leaves skb-\u003elen at ~4 GiB so skb_copy_datagram_iter() reads essentially unbounded guest kernel memory. Repeatable per packet with heap grooming, this is an arbitrary kernel-memory read.\nI:H - The wraparound bypasses skb_over_panic() and leaves a corrupted skb whose len/tail are desynchronized from the allocation; virtio_transport_build_skb() then truncates the size_t allocation size to 75 bytes and performs skb_put_data() of 0xFFFFFFFF, an unbounded out-of-bounds memcpy write out of a small slab object. Combined with the read primitive this is a heap-corruption primitive suitable for control-flow hijack in the guest.\nA:H - Any header len outside the narrow wrap window drives skb-\u003etail past skb-\u003eend, hitting skb_over_panic() \u2192 BUG() in the virtio_vsock workqueue, and the wrap path instead faults on a multi-gigabyte copy. Either way the guest kernel oopses or panics, triggerable at will and repeatedly."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:04:50.190Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/969b06bd8b7560efb100a34227619e7d318fbe05"
        },
        {
          "url": "https://git.kernel.org/stable/c/ee438c492b2e0705d819ac0e25d04fae758d8f8f"
        },
        {
          "url": "https://git.kernel.org/stable/c/faf332a10372390ce65d0b803888f4b25a388335"
        },
        {
          "url": "https://git.kernel.org/stable/c/676f03760ca1d69c2470cef36c44dc152494b47c"
        },
        {
          "url": "https://git.kernel.org/stable/c/0dab92484474587b82e8e0455839eaf5ac7bf894"
        }
      ],
      "title": "vsock/virtio: Validate length in packet header before skb_put()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39718",
    "datePublished": "2025-09-05T17:21:25.959Z",
    "dateReserved": "2025-04-16T07:20:57.117Z",
    "dateUpdated": "2026-08-05T12:04:50.190Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/swapfile.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "91b370800b3f2b3dda244c0ab06719c4971190a5",
              "status": "affected",
              "version": "b843786b0bd01ced7fcdbf3b033d68db2f7c61b2",
              "versionType": "git"
            },
            {
              "lessThan": "9b01ada580ee84fb319e7ecb5fb5b1f54a9eb799",
              "status": "affected",
              "version": "b843786b0bd01ced7fcdbf3b033d68db2f7c61b2",
              "versionType": "git"
            },
            {
              "lessThan": "815c528b13f2bb9b3130c13bedeabf2351a68129",
              "status": "affected",
              "version": "b843786b0bd01ced7fcdbf3b033d68db2f7c61b2",
              "versionType": "git"
            },
            {
              "lessThan": "152c1339dc13ad46f1b136e8693de15980750835",
              "status": "affected",
              "version": "b843786b0bd01ced7fcdbf3b033d68db2f7c61b2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "mm/swapfile.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.12"
            },
            {
              "lessThan": "6.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.42",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.42",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.10",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.1",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm: swap: fix potential buffer overflow in setup_clusters()\n\nIn setup_swap_map(), we only ensure badpages are in range (0, last_page]. \nAs maxpages might be \u003c last_page, setup_clusters() will encounter a buffer\noverflow when a badpage is \u003e= maxpages.\n\nOnly call inc_cluster_info_page() for badpage which is \u003c maxpages to fix\nthe issue."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:35:06.160Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/91b370800b3f2b3dda244c0ab06719c4971190a5"
        },
        {
          "url": "https://git.kernel.org/stable/c/9b01ada580ee84fb319e7ecb5fb5b1f54a9eb799"
        },
        {
          "url": "https://git.kernel.org/stable/c/815c528b13f2bb9b3130c13bedeabf2351a68129"
        },
        {
          "url": "https://git.kernel.org/stable/c/152c1339dc13ad46f1b136e8693de15980750835"
        }
      ],
      "title": "mm: swap: fix potential buffer overflow in setup_clusters()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39727",
    "datePublished": "2025-09-07T15:16:17.986Z",
    "dateReserved": "2025-04-16T07:20:57.118Z",
    "dateUpdated": "2026-05-11T21:35:06.160Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

{
  "containers": {
    "cna": {
      "providerMetadata": {
        "dateUpdated": "2025-10-06T09:54:34.568Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "rejectedReasons": [
        {
          "lang": "en",
          "value": "This CVE ID has been rejected or withdrawn by its CVE Numbering Authority."
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39751",
    "datePublished": "2025-09-11T16:52:22.651Z",
    "dateRejected": "2025-10-06T09:54:34.568Z",
    "dateReserved": "2025-04-16T07:20:57.125Z",
    "dateUpdated": "2025-10-06T09:54:34.568Z",
    "state": "REJECTED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:43:07.057Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "affected": [
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC CN 4100",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V5.0",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-12T12:06:47.898Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
          "shortName": "siemens-SADP"
        },
        "references": [
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"
          }
        ],
        "x_adpType": "supplier"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-39757",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-10T20:41:22.652751Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-11T18:44:11.716Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/usb/stream.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "799c06ad4c9c790c265e8b6b94947213f1fb389c",
              "status": "affected",
              "version": "11785ef53228d23ec386f5fe4a34601536f0c891",
              "versionType": "git"
            },
            {
              "lessThan": "786571b10b1ae6d90e1242848ce78ee7e1d493c4",
              "status": "affected",
              "version": "11785ef53228d23ec386f5fe4a34601536f0c891",
              "versionType": "git"
            },
            {
              "lessThan": "275e37532e8ebe25e8a4069b2d9f955bfd202a46",
              "status": "affected",
              "version": "11785ef53228d23ec386f5fe4a34601536f0c891",
              "versionType": "git"
            },
            {
              "lessThan": "47ab3d820cb0a502bd0074f83bb3cf7ab5d79902",
              "status": "affected",
              "version": "11785ef53228d23ec386f5fe4a34601536f0c891",
              "versionType": "git"
            },
            {
              "lessThan": "1034719fdefd26caeec0a44a868bb5a412c2c1a5",
              "status": "affected",
              "version": "11785ef53228d23ec386f5fe4a34601536f0c891",
              "versionType": "git"
            },
            {
              "lessThan": "ae17b3b5e753efc239421d186cd1ff06e5ac296e",
              "status": "affected",
              "version": "11785ef53228d23ec386f5fe4a34601536f0c891",
              "versionType": "git"
            },
            {
              "lessThan": "dfdcbcde5c20df878178245d4449feada7d5b201",
              "status": "affected",
              "version": "11785ef53228d23ec386f5fe4a34601536f0c891",
              "versionType": "git"
            },
            {
              "lessThan": "7ef3fd250f84494fb2f7871f357808edaa1fc6ce",
              "status": "affected",
              "version": "11785ef53228d23ec386f5fe4a34601536f0c891",
              "versionType": "git"
            },
            {
              "lessThan": "ecfd41166b72b67d3bdeb88d224ff445f6163869",
              "status": "affected",
              "version": "11785ef53228d23ec386f5fe4a34601536f0c891",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/usb/stream.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.19"
            },
            {
              "lessThan": "4.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.297",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.241",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.190",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.149",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.103",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.43",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.297",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.241",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.190",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.149",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.103",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.43",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.11",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.2",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "versionStartIncluding": "4.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Validate UAC3 cluster segment descriptors\n\nUAC3 class segment descriptors need to be verified whether their sizes\nmatch with the declared lengths and whether they fit with the\nallocated buffer sizes, too.  Otherwise malicious firmware may lead to\nthe unexpected OOB accesses."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:35:40.257Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/799c06ad4c9c790c265e8b6b94947213f1fb389c"
        },
        {
          "url": "https://git.kernel.org/stable/c/786571b10b1ae6d90e1242848ce78ee7e1d493c4"
        },
        {
          "url": "https://git.kernel.org/stable/c/275e37532e8ebe25e8a4069b2d9f955bfd202a46"
        },
        {
          "url": "https://git.kernel.org/stable/c/47ab3d820cb0a502bd0074f83bb3cf7ab5d79902"
        },
        {
          "url": "https://git.kernel.org/stable/c/1034719fdefd26caeec0a44a868bb5a412c2c1a5"
        },
        {
          "url": "https://git.kernel.org/stable/c/ae17b3b5e753efc239421d186cd1ff06e5ac296e"
        },
        {
          "url": "https://git.kernel.org/stable/c/dfdcbcde5c20df878178245d4449feada7d5b201"
        },
        {
          "url": "https://git.kernel.org/stable/c/7ef3fd250f84494fb2f7871f357808edaa1fc6ce"
        },
        {
          "url": "https://git.kernel.org/stable/c/ecfd41166b72b67d3bdeb88d224ff445f6163869"
        }
      ],
      "title": "ALSA: usb-audio: Validate UAC3 cluster segment descriptors",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39757",
    "datePublished": "2025-09-11T16:52:26.900Z",
    "dateReserved": "2025-04-16T07:20:57.125Z",
    "dateUpdated": "2026-06-11T18:44:11.716Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:43:40.463Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "affected": [
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC CN 4100",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V5.0",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-12T12:07:15.910Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
          "shortName": "siemens-SADP"
        },
        "references": [
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"
          }
        ],
        "x_adpType": "supplier"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-39817",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-10T20:40:28.646943Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-11T18:44:01.643Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/efivarfs/super.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "0f63fbabeaaaaaaf5b742a2f4c1b4590d50bf1f6",
              "status": "affected",
              "version": "da27a24383b2b10bf6ebd0db29b325548aafecb4",
              "versionType": "git"
            },
            {
              "lessThan": "794399019301944fd6d2e0d7a51b3327e26c410e",
              "status": "affected",
              "version": "da27a24383b2b10bf6ebd0db29b325548aafecb4",
              "versionType": "git"
            },
            {
              "lessThan": "568e7761279b99c6daa3002290fd6d8047ddb6d2",
              "status": "affected",
              "version": "da27a24383b2b10bf6ebd0db29b325548aafecb4",
              "versionType": "git"
            },
            {
              "lessThan": "d7f5e35e70507d10cbaff5f9e194ed54c4ee14f7",
              "status": "affected",
              "version": "da27a24383b2b10bf6ebd0db29b325548aafecb4",
              "versionType": "git"
            },
            {
              "lessThan": "925599eba46045930b850a98ae594d2e3028ac40",
              "status": "affected",
              "version": "da27a24383b2b10bf6ebd0db29b325548aafecb4",
              "versionType": "git"
            },
            {
              "lessThan": "c2925cd6207079c3f4d040d082515db78d63afbf",
              "status": "affected",
              "version": "da27a24383b2b10bf6ebd0db29b325548aafecb4",
              "versionType": "git"
            },
            {
              "lessThan": "71581a82f38e5a4d807d71fc1bb59aead80ccf95",
              "status": "affected",
              "version": "da27a24383b2b10bf6ebd0db29b325548aafecb4",
              "versionType": "git"
            },
            {
              "lessThan": "a6358f8cf64850f3f27857b8ed8c1b08cfc4685c",
              "status": "affected",
              "version": "da27a24383b2b10bf6ebd0db29b325548aafecb4",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "688289c4b745c018b3449b4b4c5a2030083c8eaf",
              "versionType": "git"
            },
            {
              "lessThan": "3.9",
              "status": "affected",
              "version": "3.8.2",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/efivarfs/super.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.9"
            },
            {
              "lessThan": "3.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.298",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.242",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.191",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.150",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.104",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.45",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.298",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.242",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.191",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.150",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.104",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.45",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.5",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "3.8.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nefivarfs: Fix slab-out-of-bounds in efivarfs_d_compare\n\nObserved on kernel 6.6 (present on master as well):\n\n  BUG: KASAN: slab-out-of-bounds in memcmp+0x98/0xd0\n  Call trace:\n   kasan_check_range+0xe8/0x190\n   __asan_loadN+0x1c/0x28\n   memcmp+0x98/0xd0\n   efivarfs_d_compare+0x68/0xd8\n   __d_lookup_rcu_op_compare+0x178/0x218\n   __d_lookup_rcu+0x1f8/0x228\n   d_alloc_parallel+0x150/0x648\n   lookup_open.isra.0+0x5f0/0x8d0\n   open_last_lookups+0x264/0x828\n   path_openat+0x130/0x3f8\n   do_filp_open+0x114/0x248\n   do_sys_openat2+0x340/0x3c0\n   __arm64_sys_openat+0x120/0x1a0\n\nIf dentry-\u003ed_name.len \u003c EFI_VARIABLE_GUID_LEN , \u0027guid\u0027 can become\nnegative, leadings to oob. The issue can be triggered by parallel\nlookups using invalid filename:\n\n  T1\t\t\tT2\n  lookup_open\n   -\u003elookup\n    simple_lookup\n     d_add\n     // invalid dentry is added to hash list\n\n\t\t\tlookup_open\n\t\t\t d_alloc_parallel\n\t\t\t  __d_lookup_rcu\n\t\t\t   __d_lookup_rcu_op_compare\n\t\t\t    hlist_bl_for_each_entry_rcu\n\t\t\t    // invalid dentry can be retrieved\n\t\t\t     -\u003ed_compare\n\t\t\t      efivarfs_d_compare\n\t\t\t      // oob\n\nFix it by checking \u0027guid\u0027 before cmp."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerable `efivarfs_d_compare()` is reached only through local path-lookup syscalls (`openat`/`stat`) against the efivarfs mount at /sys/firmware/efi/efivars. There is no network or remote-peer input path into the dcache lookup for this filesystem.\nAC:L - `efivarfs_d_hash()` makes every name shorter than 36 bytes hash to the same value, so the attacker deterministically constructs the bucket collision and length match rather than guessing them, and both sides of the parallel-lookup race are attacker threads that can retry in a tight loop indefinitely. No condition outside the attacker\u0027s control is required.\nPR:L - The efivarfs root directory is mode 0755 and lookup requires only MAY_EXEC, so any unprivileged local user can issue the two concurrent `openat()` calls; `-\u003elookup` is `simple_lookup` with no name validation and no write permission needed. No capability, and no root, is involved.\nUI:N - The attacker drives both racing lookups themselves with no victim participation. efivarfs being mounted is a default-deployment property of UEFI systems (systemd mounts it at boot), not an action a user must be tricked into performing.\nS:U - The out-of-bounds read stays within kernel slab memory under the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The negative `guid` is promoted to a ~2^64 `size_t`, giving a length-unbounded read that walks past the `dentry_cache` object into arbitrary adjacent kernel heap memory, and the attacker controls the comparison bytes on both sides so the early-exit point of `memcmp` acts as an oracle on that memory. Per kernel guidance an unbounded OOB read scores High.\nI:N - `efivarfs_d_compare()` performs only `memcmp`/`strncasecmp` reads and writes nothing; a false dentry match that could redirect a lookup to the wrong EFI variable would require ~2^64 consecutive matching bytes, which faults long before it could occur.\nA:H - The KASAN trace in the fix commit documents a slab-out-of-bounds abort, and the unbounded read readily runs off the slab page into unmapped memory, producing an oops or panic (and an immediate panic under KASAN/panic_on_oops). The attacker can retrigger it at will from an unprivileged loop."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:05:23.813Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0f63fbabeaaaaaaf5b742a2f4c1b4590d50bf1f6"
        },
        {
          "url": "https://git.kernel.org/stable/c/794399019301944fd6d2e0d7a51b3327e26c410e"
        },
        {
          "url": "https://git.kernel.org/stable/c/568e7761279b99c6daa3002290fd6d8047ddb6d2"
        },
        {
          "url": "https://git.kernel.org/stable/c/d7f5e35e70507d10cbaff5f9e194ed54c4ee14f7"
        },
        {
          "url": "https://git.kernel.org/stable/c/925599eba46045930b850a98ae594d2e3028ac40"
        },
        {
          "url": "https://git.kernel.org/stable/c/c2925cd6207079c3f4d040d082515db78d63afbf"
        },
        {
          "url": "https://git.kernel.org/stable/c/71581a82f38e5a4d807d71fc1bb59aead80ccf95"
        },
        {
          "url": "https://git.kernel.org/stable/c/a6358f8cf64850f3f27857b8ed8c1b08cfc4685c"
        }
      ],
      "title": "efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39817",
    "datePublished": "2025-09-16T13:00:17.776Z",
    "dateReserved": "2025-04-16T07:20:57.138Z",
    "dateUpdated": "2026-08-05T12:05:23.813Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:43:56.756Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "affected": [
          {
            "defaultStatus": "unknown",
            "product": "RUGGEDCOM RST2428P",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XCH328",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XCM324",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XCM328",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XCM332",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XRH334 (24 V DC, 8xFO, CC)",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XRM334 (230 V AC, 12xFO)",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XRM334 (230 V AC, 8xFO)",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XRM334 (230V AC, 2x10G, 24xSFP, 8xSFP+)",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XRM334 (24 V DC, 12xFO)",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XRM334 (24 V DC, 8xFO)",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XRM334 (24V DC, 2x10G, 24xSFP, 8xSFP+)",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XRM334 (2x230 V AC, 12xFO)",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XRM334 (2x230 V AC, 8xFO)",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XRM334 (2x230V AC, 2x10G, 24xSFP, 8xSFP+)",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V3.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC CN 4100",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V5.0",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-12T12:07:28.917Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
          "shortName": "siemens-SADP"
        },
        "references": [
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-089022.html"
          },
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"
          }
        ],
        "x_adpType": "supplier"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-39841",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-10T20:42:00.721283Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-11T18:44:18.587Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/lpfc/lpfc_nvmet.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ab34084f42ee06a9028d67c78feafb911d33d111",
              "status": "affected",
              "version": "472e146d1cf3410a898b49834500fa9e33ac41a2",
              "versionType": "git"
            },
            {
              "lessThan": "baa39f6ad79d372a6ce0aa639fbb2f1578479f57",
              "status": "affected",
              "version": "472e146d1cf3410a898b49834500fa9e33ac41a2",
              "versionType": "git"
            },
            {
              "lessThan": "95b63d15fce5c54a73bbf195e1aacb5a75b128e2",
              "status": "affected",
              "version": "472e146d1cf3410a898b49834500fa9e33ac41a2",
              "versionType": "git"
            },
            {
              "lessThan": "55658c7501467ca9ef3bd4453dd920010db8bc13",
              "status": "affected",
              "version": "472e146d1cf3410a898b49834500fa9e33ac41a2",
              "versionType": "git"
            },
            {
              "lessThan": "d96cc9a1b57725930c60b607423759d563b4d900",
              "status": "affected",
              "version": "472e146d1cf3410a898b49834500fa9e33ac41a2",
              "versionType": "git"
            },
            {
              "lessThan": "367cb5ffd8a8a4c85dc89f55e7fa7cc191425b11",
              "status": "affected",
              "version": "472e146d1cf3410a898b49834500fa9e33ac41a2",
              "versionType": "git"
            },
            {
              "lessThan": "897f64b01c1249ac730329b83f4f40bab71e86c7",
              "status": "affected",
              "version": "472e146d1cf3410a898b49834500fa9e33ac41a2",
              "versionType": "git"
            },
            {
              "lessThan": "9dba9a45c348e8460da97c450cddf70b2056deb3",
              "status": "affected",
              "version": "472e146d1cf3410a898b49834500fa9e33ac41a2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/lpfc/lpfc_nvmet.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.1"
            },
            {
              "lessThan": "5.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.299",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.243",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.192",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.151",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.105",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.46",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.299",
                  "versionStartIncluding": "5.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.243",
                  "versionStartIncluding": "5.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.192",
                  "versionStartIncluding": "5.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.151",
                  "versionStartIncluding": "5.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.105",
                  "versionStartIncluding": "5.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.46",
                  "versionStartIncluding": "5.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.6",
                  "versionStartIncluding": "5.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "versionStartIncluding": "5.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: lpfc: Fix buffer free/clear order in deferred receive path\n\nFix a use-after-free window by correcting the buffer release sequence in\nthe deferred receive path. The code freed the RQ buffer first and only\nthen cleared the context pointer under the lock. Concurrent paths (e.g.,\nABTS and the repost path) also inspect and release the same pointer under\nthe lock, so the old order could lead to double-free/UAF.\n\nNote that the repost path already uses the correct pattern: detach the\npointer under the lock, then free it after dropping the lock. The\ndeferred path should do the same."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The vulnerable code is the lpfc NVMe-over-Fibre-Channel target\u0027s receive path, processing FCP command and ABTS frames sent by a remote NVMe-oF initiator peer, directly analogous to nvmet-tcp; FC fabrics are also routable across sites via FCIP/inter-fabric routing and FCoE. Repo precedent (CVE-2026-43414, qla2xxx FC) scores FC-peer-triggered driver memory corruption as Network.\nAC:L - The remote initiator controls both sides of the race \u2014 it forces the deferred path by flooding the queue past its fod count (-EOVERFLOW) and drives lpfc_nvmet_ctxbuf_post() concurrently by sending ABTS for the same exchange \u2014 and can retry at FC line rate until the unlocked free/clear window is hit.\nPR:N - NVMe/FC provides no transport authentication and no TLS; hostnqn-based allow-lists are an authorization filter that a fabric-attached attacker can spoof, and ABTS frames reaching lpfc_nvmet_rcv_unsol_abort() require no established association at all. No privileges on the target host are needed.\nUI:N - The race is triggered entirely by inbound FC frames processed asynchronously in the driver\u0027s interrupt/completion and workqueue contexts. No administrator or user action on the target system is required.\nS:U - The double-free and use-after-free corrupt kernel heap and DMA-pool state within the target host\u0027s own kernel security authority. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - The freed rqb_dmabuf is re-read after kfree() (rqb_entry-\u003ehrq-\u003erqbp, hbuf.phys/dbuf.phys), and the double dma_pool_free() lets the same DMA buffer be handed to two live exchanges, so one initiator\u0027s data lands in another\u0027s buffer. Heap grooming around the freed slab object yields an arbitrary-read primitive.\nI:H - lpfc_rq_buf_free() performs a list_del() write into the freed object and re-posts stale DMA addresses to the hardware RQ, causing the HBA to DMA attacker-supplied FC frame content into freed/reallocated kernel memory \u2014 a remote, attacker-controlled kernel write primitive, plus double-free-based heap control.\nA:H - The double kfree()/dma_pool_free() and freed-list corruption reliably produce slab corruption, BUG_ON in the allocator, or an oops in the interrupt-context completion handler, panicking the storage target host."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:05:34.724Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ab34084f42ee06a9028d67c78feafb911d33d111"
        },
        {
          "url": "https://git.kernel.org/stable/c/baa39f6ad79d372a6ce0aa639fbb2f1578479f57"
        },
        {
          "url": "https://git.kernel.org/stable/c/95b63d15fce5c54a73bbf195e1aacb5a75b128e2"
        },
        {
          "url": "https://git.kernel.org/stable/c/55658c7501467ca9ef3bd4453dd920010db8bc13"
        },
        {
          "url": "https://git.kernel.org/stable/c/d96cc9a1b57725930c60b607423759d563b4d900"
        },
        {
          "url": "https://git.kernel.org/stable/c/367cb5ffd8a8a4c85dc89f55e7fa7cc191425b11"
        },
        {
          "url": "https://git.kernel.org/stable/c/897f64b01c1249ac730329b83f4f40bab71e86c7"
        },
        {
          "url": "https://git.kernel.org/stable/c/9dba9a45c348e8460da97c450cddf70b2056deb3"
        }
      ],
      "title": "scsi: lpfc: Fix buffer free/clear order in deferred receive path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39841",
    "datePublished": "2025-09-19T15:26:16.349Z",
    "dateReserved": "2025-04-16T07:20:57.141Z",
    "dateUpdated": "2026-08-05T12:05:34.724Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:44:07.905Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "affected": [
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC CN 4100",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V5.0",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-12T12:07:38.255Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
          "shortName": "siemens-SADP"
        },
        "references": [
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"
          }
        ],
        "x_adpType": "supplier"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-39849",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-10T20:41:55.667647Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-11T18:44:17.650Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/wireless/sme.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8e751d46336205abc259ed3990e850a9843fb649",
              "status": "affected",
              "version": "dd43f8f90206054e7da7593de0a334fb2cd0ea88",
              "versionType": "git"
            },
            {
              "lessThan": "e472f59d02c82b511bc43a3f96d62ed08bf4537f",
              "status": "affected",
              "version": "c38c701851011c94ce3be1ccb3593678d2933fd8",
              "versionType": "git"
            },
            {
              "lessThan": "31229145e6ba5ace3e9391113376fa05b7831ede",
              "status": "affected",
              "version": "c38c701851011c94ce3be1ccb3593678d2933fd8",
              "versionType": "git"
            },
            {
              "lessThan": "5cb7cab7adf9b1e6a99e2081b0e30e9e59d07523",
              "status": "affected",
              "version": "c38c701851011c94ce3be1ccb3593678d2933fd8",
              "versionType": "git"
            },
            {
              "lessThan": "62b635dcd69c4fde7ce1de4992d71420a37e51e3",
              "status": "affected",
              "version": "c38c701851011c94ce3be1ccb3593678d2933fd8",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "bf3c348c5fdcf00a7eeed04a1b83e454d2dca2e5",
              "versionType": "git"
            },
            {
              "lessThan": "6.1.151",
              "status": "affected",
              "version": "6.1.16",
              "versionType": "semver"
            },
            {
              "lessThan": "6.3",
              "status": "affected",
              "version": "6.2.3",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/wireless/sme.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "lessThan": "6.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.151",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.105",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.46",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.151",
                  "versionStartIncluding": "6.1.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.105",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.46",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.6",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.2.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()\n\nIf the ssid-\u003edatalen is more than IEEE80211_MAX_SSID_LEN (32) it would\nlead to memory corruption so add some bounds checking."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:A - The overflow length and contents come straight from the SSID element of an 802.11 beacon/probe response stored in the cfg80211 BSS cache, so the attacker only needs to operate a rogue AP or inject frames within radio range of the victim station. This is the standard WiFi frame-injection adjacent-network vector.\nAC:L - The attacker fully controls every precondition \u2014 the rogue AP\u0027s per-link beacon contents, the SSID element length (up to 255), the link IDs, and which link is used for association \u2014 and can force (re)association with deauthentication frames. No condition lies outside the attacker\u0027s control.\nPR:N - No credentials or account on the victim system are required; the code runs during association processing on the client, triggered purely by frames the attacker transmits. An open/evil-twin AP suffices.\nUI:N - Association and roaming are performed automatically by the WiFi stack for remembered and open networks, and an attacker can force reassociation with deauth frames, so no deliberate victim action is needed.\nS:U - The corruption is confined to kernel heap memory belonging to the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - `wdev-\u003eu.client.ssid_len` is set to the full unclamped datalen, so `nl80211.c:4530` copies up to 223 bytes of adjacent kernel heap out to userspace via NL80211_ATTR_SSID, and the write primitive over BSS pointers enables broader disclosure.\nI:H - An out-of-bounds write of up to 223 fully attacker-controlled bytes overwrites `wdev-\u003elinks[]`, including `client.current_bss` pointers that are later dereferenced and refcount-decremented, yielding a controlled-pointer primitive suitable for control-flow hijacking.\nA:H - Corrupting the `wdev-\u003elinks[]` BSS pointers and surrounding `ieee80211_sub_if_data` state leads to bogus pointer dereferences in `cfg80211_wdev_release_bsses()` and kernel panic; heap overflow reliably crashes the system."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:05:37.003Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8e751d46336205abc259ed3990e850a9843fb649"
        },
        {
          "url": "https://git.kernel.org/stable/c/e472f59d02c82b511bc43a3f96d62ed08bf4537f"
        },
        {
          "url": "https://git.kernel.org/stable/c/31229145e6ba5ace3e9391113376fa05b7831ede"
        },
        {
          "url": "https://git.kernel.org/stable/c/5cb7cab7adf9b1e6a99e2081b0e30e9e59d07523"
        },
        {
          "url": "https://git.kernel.org/stable/c/62b635dcd69c4fde7ce1de4992d71420a37e51e3"
        }
      ],
      "title": "wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39849",
    "datePublished": "2025-09-19T15:26:22.073Z",
    "dateReserved": "2025-04-16T07:20:57.142Z",
    "dateUpdated": "2026-08-05T12:05:37.003Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}