CVE-2024-40914 (GCVE-0-2024-40914)

Vulnerability from cvelistv5 – Published: 2024-07-12 12:24 – Updated: 2026-05-23 15:50
VLAI
Title
mm/huge_memory: don't unpoison huge_zero_folio
Summary
In the Linux kernel, the following vulnerability has been resolved: mm/huge_memory: don't unpoison huge_zero_folio When I did memory failure tests recently, below panic occurs: kernel BUG at include/linux/mm.h:1135! invalid opcode: 0000 [#1] PREEMPT SMP NOPTI CPU: 9 PID: 137 Comm: kswapd1 Not tainted 6.9.0-rc4-00491-gd5ce28f156fe-dirty #14 RIP: 0010:shrink_huge_zero_page_scan+0x168/0x1a0 RSP: 0018:ffff9933c6c57bd0 EFLAGS: 00000246 RAX: 000000000000003e RBX: 0000000000000000 RCX: ffff88f61fc5c9c8 RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff88f61fc5c9c0 RBP: ffffcd7c446b0000 R08: ffffffff9a9405f0 R09: 0000000000005492 R10: 00000000000030ea R11: ffffffff9a9405f0 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88e703c4ac00 FS: 0000000000000000(0000) GS:ffff88f61fc40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f4da6e9878 CR3: 0000000c71048000 CR4: 00000000000006f0 Call Trace: <TASK> do_shrink_slab+0x14f/0x6a0 shrink_slab+0xca/0x8c0 shrink_node+0x2d0/0x7d0 balance_pgdat+0x33a/0x720 kswapd+0x1f3/0x410 kthread+0xd5/0x100 ret_from_fork+0x2f/0x50 ret_from_fork_asm+0x1a/0x30 </TASK> Modules linked in: mce_inject hwpoison_inject ---[ end trace 0000000000000000 ]--- RIP: 0010:shrink_huge_zero_page_scan+0x168/0x1a0 RSP: 0018:ffff9933c6c57bd0 EFLAGS: 00000246 RAX: 000000000000003e RBX: 0000000000000000 RCX: ffff88f61fc5c9c8 RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff88f61fc5c9c0 RBP: ffffcd7c446b0000 R08: ffffffff9a9405f0 R09: 0000000000005492 R10: 00000000000030ea R11: ffffffff9a9405f0 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88e703c4ac00 FS: 0000000000000000(0000) GS:ffff88f61fc40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f4da6e9878 CR3: 0000000c71048000 CR4: 00000000000006f0 The root cause is that HWPoison flag will be set for huge_zero_folio without increasing the folio refcnt. But then unpoison_memory() will decrease the folio refcnt unexpectedly as it appears like a successfully hwpoisoned folio leading to VM_BUG_ON_PAGE(page_ref_count(page) == 0) when releasing huge_zero_folio. Skip unpoisoning huge_zero_folio in unpoison_memory() to fix this issue. We're not prepared to unpoison huge_zero_folio yet.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 17:05 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: f8f836100fff594cea8a0a027affb9d5520f09a7 , < 688bb46ad339497b5b7f527b6636d2afe04b46af (git)
Affected: 478d134e9506c7e9bfe2830ed03dd85e97966313 , < b2494506f30675245a3e6787281f79601af087bf (git)
Affected: 478d134e9506c7e9bfe2830ed03dd85e97966313 , < 0d73477af964dbd7396163a13817baf13940bca9 (git)
Affected: 478d134e9506c7e9bfe2830ed03dd85e97966313 , < d72b7711919de49d92a67dfc844a6cf4c23dd794 (git)
Affected: 478d134e9506c7e9bfe2830ed03dd85e97966313 , < fe6f86f4b40855a130a19aa589f9ba7f650423f4 (git)
Affected: 13d9b8cd12f37d133b07ea5b323583e8a0c6b738 (git)
Affected: 5.15.41 , < 5.15.162 (semver)
Affected: 5.17.9 , < 5.18 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 5.18
Unaffected: 0 , < 5.18 (semver)
Unaffected: 5.15.162 , ≤ 5.15.* (semver)
Unaffected: 6.1.95 , ≤ 6.1.* (semver)
Unaffected: 6.6.35 , ≤ 6.6.* (semver)
Unaffected: 6.9.6 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T21:57:44.975Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/688bb46ad339497b5b7f527b6636d2afe04b46af"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/b2494506f30675245a3e6787281f79601af087bf"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/0d73477af964dbd7396163a13817baf13940bca9"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/d72b7711919de49d92a67dfc844a6cf4c23dd794"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/fe6f86f4b40855a130a19aa589f9ba7f650423f4"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-40914",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T17:05:52.834846Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:34:39.386Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/memory-failure.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "688bb46ad339497b5b7f527b6636d2afe04b46af",
              "status": "affected",
              "version": "f8f836100fff594cea8a0a027affb9d5520f09a7",
              "versionType": "git"
            },
            {
              "lessThan": "b2494506f30675245a3e6787281f79601af087bf",
              "status": "affected",
              "version": "478d134e9506c7e9bfe2830ed03dd85e97966313",
              "versionType": "git"
            },
            {
              "lessThan": "0d73477af964dbd7396163a13817baf13940bca9",
              "status": "affected",
              "version": "478d134e9506c7e9bfe2830ed03dd85e97966313",
              "versionType": "git"
            },
            {
              "lessThan": "d72b7711919de49d92a67dfc844a6cf4c23dd794",
              "status": "affected",
              "version": "478d134e9506c7e9bfe2830ed03dd85e97966313",
              "versionType": "git"
            },
            {
              "lessThan": "fe6f86f4b40855a130a19aa589f9ba7f650423f4",
              "status": "affected",
              "version": "478d134e9506c7e9bfe2830ed03dd85e97966313",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "13d9b8cd12f37d133b07ea5b323583e8a0c6b738",
              "versionType": "git"
            },
            {
              "lessThan": "5.15.162",
              "status": "affected",
              "version": "5.15.41",
              "versionType": "semver"
            },
            {
              "lessThan": "5.18",
              "status": "affected",
              "version": "5.17.9",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "mm/memory-failure.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.18"
            },
            {
              "lessThan": "5.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.162",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.95",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.9.*",
              "status": "unaffected",
              "version": "6.9.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.10",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.162",
                  "versionStartIncluding": "5.15.41",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.95",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.35",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.9.6",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.10",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.17.9",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: don\u0027t unpoison huge_zero_folio\n\nWhen I did memory failure tests recently, below panic occurs:\n\n kernel BUG at include/linux/mm.h:1135!\n invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 9 PID: 137 Comm: kswapd1 Not tainted 6.9.0-rc4-00491-gd5ce28f156fe-dirty #14\n RIP: 0010:shrink_huge_zero_page_scan+0x168/0x1a0\n RSP: 0018:ffff9933c6c57bd0 EFLAGS: 00000246\n RAX: 000000000000003e RBX: 0000000000000000 RCX: ffff88f61fc5c9c8\n RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff88f61fc5c9c0\n RBP: ffffcd7c446b0000 R08: ffffffff9a9405f0 R09: 0000000000005492\n R10: 00000000000030ea R11: ffffffff9a9405f0 R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000000 R15: ffff88e703c4ac00\n FS:  0000000000000000(0000) GS:ffff88f61fc40000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000055f4da6e9878 CR3: 0000000c71048000 CR4: 00000000000006f0\n Call Trace:\n  \u003cTASK\u003e\n  do_shrink_slab+0x14f/0x6a0\n  shrink_slab+0xca/0x8c0\n  shrink_node+0x2d0/0x7d0\n  balance_pgdat+0x33a/0x720\n  kswapd+0x1f3/0x410\n  kthread+0xd5/0x100\n  ret_from_fork+0x2f/0x50\n  ret_from_fork_asm+0x1a/0x30\n  \u003c/TASK\u003e\n Modules linked in: mce_inject hwpoison_inject\n ---[ end trace 0000000000000000 ]---\n RIP: 0010:shrink_huge_zero_page_scan+0x168/0x1a0\n RSP: 0018:ffff9933c6c57bd0 EFLAGS: 00000246\n RAX: 000000000000003e RBX: 0000000000000000 RCX: ffff88f61fc5c9c8\n RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff88f61fc5c9c0\n RBP: ffffcd7c446b0000 R08: ffffffff9a9405f0 R09: 0000000000005492\n R10: 00000000000030ea R11: ffffffff9a9405f0 R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000000 R15: ffff88e703c4ac00\n FS:  0000000000000000(0000) GS:ffff88f61fc40000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000055f4da6e9878 CR3: 0000000c71048000 CR4: 00000000000006f0\n\nThe root cause is that HWPoison flag will be set for huge_zero_folio\nwithout increasing the folio refcnt.  But then unpoison_memory() will\ndecrease the folio refcnt unexpectedly as it appears like a successfully\nhwpoisoned folio leading to VM_BUG_ON_PAGE(page_ref_count(page) == 0) when\nreleasing huge_zero_folio.\n\nSkip unpoisoning huge_zero_folio in unpoison_memory() to fix this issue. \nWe\u0027re not prepared to unpoison huge_zero_folio yet."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:50:52.644Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/688bb46ad339497b5b7f527b6636d2afe04b46af"
        },
        {
          "url": "https://git.kernel.org/stable/c/b2494506f30675245a3e6787281f79601af087bf"
        },
        {
          "url": "https://git.kernel.org/stable/c/0d73477af964dbd7396163a13817baf13940bca9"
        },
        {
          "url": "https://git.kernel.org/stable/c/d72b7711919de49d92a67dfc844a6cf4c23dd794"
        },
        {
          "url": "https://git.kernel.org/stable/c/fe6f86f4b40855a130a19aa589f9ba7f650423f4"
        }
      ],
      "title": "mm/huge_memory: don\u0027t unpoison huge_zero_folio",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-40914",
    "datePublished": "2024-07-12T12:24:58.055Z",
    "dateReserved": "2024-07-12T12:17:45.581Z",
    "dateUpdated": "2026-05-23T15:50:52.644Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-40914",
      "date": "2026-09-21",
      "epss": "0.00277",
      "percentile": "0.20379"
    },
    "fkie_nvd": {
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: don\u0027t unpoison huge_zero_folio\n\nWhen I did memory failure tests recently, below panic occurs:\n\n kernel BUG at include/linux/mm.h:1135!\n invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 9 PID: 137 Comm: kswapd1 Not tainted 6.9.0-rc4-00491-gd5ce28f156fe-dirty #14\n RIP: 0010:shrink_huge_zero_page_scan+0x168/0x1a0\n RSP: 0018:ffff9933c6c57bd0 EFLAGS: 00000246\n RAX: 000000000000003e RBX: 0000000000000000 RCX: ffff88f61fc5c9c8\n RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff88f61fc5c9c0\n RBP: ffffcd7c446b0000 R08: ffffffff9a9405f0 R09: 0000000000005492\n R10: 00000000000030ea R11: ffffffff9a9405f0 R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000000 R15: ffff88e703c4ac00\n FS:  0000000000000000(0000) GS:ffff88f61fc40000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000055f4da6e9878 CR3: 0000000c71048000 CR4: 00000000000006f0\n Call Trace:\n  \u003cTASK\u003e\n  do_shrink_slab+0x14f/0x6a0\n  shrink_slab+0xca/0x8c0\n  shrink_node+0x2d0/0x7d0\n  balance_pgdat+0x33a/0x720\n  kswapd+0x1f3/0x410\n  kthread+0xd5/0x100\n  ret_from_fork+0x2f/0x50\n  ret_from_fork_asm+0x1a/0x30\n  \u003c/TASK\u003e\n Modules linked in: mce_inject hwpoison_inject\n ---[ end trace 0000000000000000 ]---\n RIP: 0010:shrink_huge_zero_page_scan+0x168/0x1a0\n RSP: 0018:ffff9933c6c57bd0 EFLAGS: 00000246\n RAX: 000000000000003e RBX: 0000000000000000 RCX: ffff88f61fc5c9c8\n RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff88f61fc5c9c0\n RBP: ffffcd7c446b0000 R08: ffffffff9a9405f0 R09: 0000000000005492\n R10: 00000000000030ea R11: ffffffff9a9405f0 R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000000 R15: ffff88e703c4ac00\n FS:  0000000000000000(0000) GS:ffff88f61fc40000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000055f4da6e9878 CR3: 0000000c71048000 CR4: 00000000000006f0\n\nThe root cause is that HWPoison flag will be set for huge_zero_folio\nwithout increasing the folio refcnt.  But then unpoison_memory() will\ndecrease the folio refcnt unexpectedly as it appears like a successfully\nhwpoisoned folio leading to VM_BUG_ON_PAGE(page_ref_count(page) == 0) when\nreleasing huge_zero_folio.\n\nSkip unpoisoning huge_zero_folio in unpoison_memory() to fix this issue. \nWe\u0027re not prepared to unpoison huge_zero_folio yet."
        },
        {
          "lang": "es",
          "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: mm/huge_memory: no desvenenes a huge_zero_folio Cuando hice pruebas de falla de memoria recientemente, se produjo el siguiente p\u00e1nico: \u00a1ERROR del kernel en include/linux/mm.h:1135! c\u00f3digo de operaci\u00f3n no v\u00e1lido: 0000 [#1] PREEMPT SMP NOPTI CPU: 9 PID: 137 Comm: kswapd1 No est\u00e1 contaminado 6.9.0-rc4-00491-gd5ce28f156fe-dirty #14 RIP: 0010:shrink_huge_zero_page_scan+0x168/0x1a0 RSP: 0018:ffff 9933c6c57bd0 EFLAGS : 00000246 RAX: 000000000000003e RBX: 0000000000000000 RCX: ffff88f61fc5c9c8 RDX: 0000000000000000 RSI: 0000000000000027 RDI: 5c9c0 RBP: ffffcd7c446b0000 R08: ffffffff9a9405f0 R09: 0000000000005492 R10: 00000000000030ea R11: ffffffff9a9405f0 R12: 000000000000000000000 000000000000000 R14: 0000000000000000 R15: ffff88e703c4ac00 FS: 0000000000000000 (0000) GS:ffff88f61fc40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f4da6e9878 CR3: 048000 CR4: 00000000000006f0 Seguimiento de llamadas:  do_shrink_slab+0x14f/0x6a0 Shrink_slab+0xca/0x8c0 Shrink_node +0x2d0/0x7d0 balance_pgdat+0x33a/0x720 kswapd+0x1f3/0x410 kthread+0xd5/0x100 ret_from_fork+0x2f/0x50 ret_from_fork_asm+0x1a/0x30  M\u00f3dulos vinculados en: mce_inject hwpoison_inject ---[ traza final 0000000000000000 ]--- RIP: 0010:shrink_huge_zero_page_scan+0x168/0x1a0 RSP: 0018:ffff9933c6c57bd0 EFLAGS: 00000246 RAX: 000000000000003e RBX: 0000000000000000 RCX: ffff88f61 fc5c9c8 RDX: 0000000000000000 RSI: 00000000000000027 RDI: ffff88f61fc5c9c0 RBP: ffffcd7c446b0000 R08: ffffffff9a9405f0 R09: 00000000000005492 : 00000000000030ea R11: ffffffff9a9405f0 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88e703c4ac00 FS: 0000000000000000(0000) GS:ffff88f61fc40000 (0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f4da6e9878 CR3: 0000000c71048000 CR4: 0000000000000 6f0 La ra\u00edz La causa es que el indicador HWPoison se establecer\u00e1 para Huge_zero_folio sin aumentar la referencia del folio. Pero luego unpoison_memory() disminuir\u00e1 el refcnt del folio inesperadamente, ya que aparece como un folio envenenado exitosamente que conduce a VM_BUG_ON_PAGE(page_ref_count(page) == 0) al liberar huge_zero_folio. Omita la eliminaci\u00f3n de veneno de huge_zero_folio en unpoison_memory() para solucionar este problema. A\u00fan no estamos preparados para desvenenar a Huge_zero_folio."
        }
      ],
      "id": "CVE-2024-40914",
      "lastModified": "2024-11-21T09:31:50.940",
      "published": "2024-07-12T13:15:14.567",
      "references": [
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/0d73477af964dbd7396163a13817baf13940bca9"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/688bb46ad339497b5b7f527b6636d2afe04b46af"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/b2494506f30675245a3e6787281f79601af087bf"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/d72b7711919de49d92a67dfc844a6cf4c23dd794"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/fe6f86f4b40855a130a19aa589f9ba7f650423f4"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/0d73477af964dbd7396163a13817baf13940bca9"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/688bb46ad339497b5b7f527b6636d2afe04b46af"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/b2494506f30675245a3e6787281f79601af087bf"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/d72b7711919de49d92a67dfc844a6cf4c23dd794"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/fe6f86f4b40855a130a19aa589f9ba7f650423f4"
        }
      ],
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Awaiting Analysis"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "mm/memory-failure.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "688bb46ad339497b5b7f527b6636d2afe04b46af",
                    "status": "affected",
                    "version": "f8f836100fff594cea8a0a027affb9d5520f09a7",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "b2494506f30675245a3e6787281f79601af087bf",
                    "status": "affected",
                    "version": "478d134e9506c7e9bfe2830ed03dd85e97966313",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "0d73477af964dbd7396163a13817baf13940bca9",
                    "status": "affected",
                    "version": "478d134e9506c7e9bfe2830ed03dd85e97966313",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "d72b7711919de49d92a67dfc844a6cf4c23dd794",
                    "status": "affected",
                    "version": "478d134e9506c7e9bfe2830ed03dd85e97966313",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "fe6f86f4b40855a130a19aa589f9ba7f650423f4",
                    "status": "affected",
                    "version": "478d134e9506c7e9bfe2830ed03dd85e97966313",
                    "versionType": "git"
                  },
                  {
                    "status": "affected",
                    "version": "13d9b8cd12f37d133b07ea5b323583e8a0c6b738",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "5.15.162",
                    "status": "affected",
                    "version": "5.15.41",
                    "versionType": "semver"
                  },
                  {
                    "lessThan": "5.18",
                    "status": "affected",
                    "version": "5.17.9",
                    "versionType": "semver"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "mm/memory-failure.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.18"
                  },
                  {
                    "lessThan": "5.18",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.162",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.95",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.35",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.9.*",
                    "status": "unaffected",
                    "version": "6.9.6",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.10",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "164EDF99-AE68-470E-822B-93BA6761F9E5",
                    "versionEndExcluding": "5.15.162",
                    "versionStartIncluding": "5.15.41",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "237FF665-63EB-4FB8-B2DC-5BD5D79B8053",
                    "versionEndExcluding": "5.18",
                    "versionStartIncluding": "5.17.9",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "02CCDEAE-9DFB-4987-B047-B9400C5AB0CA",
                    "versionEndExcluding": "6.1.95",
                    "versionStartIncluding": "5.18.1",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "6F019D15-84C0-416B-8C57-7F51B68992F0",
                    "versionEndExcluding": "6.6.35",
                    "versionStartIncluding": "6.2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0ABBBA1D-F79D-4BDB-AA41-D1EDCC4A6975",
                    "versionEndExcluding": "6.9.6",
                    "versionStartIncluding": "6.7",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:5.18:-:*:*:*:*:*:*",
                    "matchCriteriaId": "0384FA0A-DE99-48D7-84E3-46ED0C3B5E03",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:5.18:rc7:*:*:*:*:*:*",
                    "matchCriteriaId": "2FCFCE58-5118-4D05-864E-C82CF20EABE5",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: don\u0027t unpoison huge_zero_folio\n\nWhen I did memory failure tests recently, below panic occurs:\n\n kernel BUG at include/linux/mm.h:1135!\n invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 9 PID: 137 Comm: kswapd1 Not tainted 6.9.0-rc4-00491-gd5ce28f156fe-dirty #14\n RIP: 0010:shrink_huge_zero_page_scan+0x168/0x1a0\n RSP: 0018:ffff9933c6c57bd0 EFLAGS: 00000246\n RAX: 000000000000003e RBX: 0000000000000000 RCX: ffff88f61fc5c9c8\n RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff88f61fc5c9c0\n RBP: ffffcd7c446b0000 R08: ffffffff9a9405f0 R09: 0000000000005492\n R10: 00000000000030ea R11: ffffffff9a9405f0 R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000000 R15: ffff88e703c4ac00\n FS:  0000000000000000(0000) GS:ffff88f61fc40000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000055f4da6e9878 CR3: 0000000c71048000 CR4: 00000000000006f0\n Call Trace:\n  \u003cTASK\u003e\n  do_shrink_slab+0x14f/0x6a0\n  shrink_slab+0xca/0x8c0\n  shrink_node+0x2d0/0x7d0\n  balance_pgdat+0x33a/0x720\n  kswapd+0x1f3/0x410\n  kthread+0xd5/0x100\n  ret_from_fork+0x2f/0x50\n  ret_from_fork_asm+0x1a/0x30\n  \u003c/TASK\u003e\n Modules linked in: mce_inject hwpoison_inject\n ---[ end trace 0000000000000000 ]---\n RIP: 0010:shrink_huge_zero_page_scan+0x168/0x1a0\n RSP: 0018:ffff9933c6c57bd0 EFLAGS: 00000246\n RAX: 000000000000003e RBX: 0000000000000000 RCX: ffff88f61fc5c9c8\n RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff88f61fc5c9c0\n RBP: ffffcd7c446b0000 R08: ffffffff9a9405f0 R09: 0000000000005492\n R10: 00000000000030ea R11: ffffffff9a9405f0 R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000000 R15: ffff88e703c4ac00\n FS:  0000000000000000(0000) GS:ffff88f61fc40000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000055f4da6e9878 CR3: 0000000c71048000 CR4: 00000000000006f0\n\nThe root cause is that HWPoison flag will be set for huge_zero_folio\nwithout increasing the folio refcnt.  But then unpoison_memory() will\ndecrease the folio refcnt unexpectedly as it appears like a successfully\nhwpoisoned folio leading to VM_BUG_ON_PAGE(page_ref_count(page) == 0) when\nreleasing huge_zero_folio.\n\nSkip unpoisoning huge_zero_folio in unpoison_memory() to fix this issue. \nWe\u0027re not prepared to unpoison huge_zero_folio yet."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: mm/huge_memory: no desvenenes a huge_zero_folio Cuando hice pruebas de falla de memoria recientemente, se produjo el siguiente p\u00e1nico: \u00a1ERROR del kernel en include/linux/mm.h:1135! c\u00f3digo de operaci\u00f3n no v\u00e1lido: 0000 [#1] PREEMPT SMP NOPTI CPU: 9 PID: 137 Comm: kswapd1 No est\u00e1 contaminado 6.9.0-rc4-00491-gd5ce28f156fe-dirty #14 RIP: 0010:shrink_huge_zero_page_scan+0x168/0x1a0 RSP: 0018:ffff 9933c6c57bd0 EFLAGS : 00000246 RAX: 000000000000003e RBX: 0000000000000000 RCX: ffff88f61fc5c9c8 RDX: 0000000000000000 RSI: 0000000000000027 RDI: 5c9c0 RBP: ffffcd7c446b0000 R08: ffffffff9a9405f0 R09: 0000000000005492 R10: 00000000000030ea R11: ffffffff9a9405f0 R12: 000000000000000000000 000000000000000 R14: 0000000000000000 R15: ffff88e703c4ac00 FS: 0000000000000000 (0000) GS:ffff88f61fc40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f4da6e9878 CR3: 048000 CR4: 00000000000006f0 Seguimiento de llamadas:  do_shrink_slab+0x14f/0x6a0 Shrink_slab+0xca/0x8c0 Shrink_node +0x2d0/0x7d0 balance_pgdat+0x33a/0x720 kswapd+0x1f3/0x410 kthread+0xd5/0x100 ret_from_fork+0x2f/0x50 ret_from_fork_asm+0x1a/0x30  M\u00f3dulos vinculados en: mce_inject hwpoison_inject ---[ traza final 0000000000000000 ]--- RIP: 0010:shrink_huge_zero_page_scan+0x168/0x1a0 RSP: 0018:ffff9933c6c57bd0 EFLAGS: 00000246 RAX: 000000000000003e RBX: 0000000000000000 RCX: ffff88f61 fc5c9c8 RDX: 0000000000000000 RSI: 00000000000000027 RDI: ffff88f61fc5c9c0 RBP: ffffcd7c446b0000 R08: ffffffff9a9405f0 R09: 00000000000005492 : 00000000000030ea R11: ffffffff9a9405f0 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88e703c4ac00 FS: 0000000000000000(0000) GS:ffff88f61fc40000 (0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f4da6e9878 CR3: 0000000c71048000 CR4: 0000000000000 6f0 La ra\u00edz La causa es que el indicador HWPoison se establecer\u00e1 para Huge_zero_folio sin aumentar la referencia del folio. Pero luego unpoison_memory() disminuir\u00e1 el refcnt del folio inesperadamente, ya que aparece como un folio envenenado exitosamente que conduce a VM_BUG_ON_PAGE(page_ref_count(page) == 0) al liberar huge_zero_folio. Omita la eliminaci\u00f3n de veneno de huge_zero_folio en unpoison_memory() para solucionar este problema. A\u00fan no estamos preparados para desvenenar a Huge_zero_folio."
          }
        ],
        "id": "CVE-2024-40914",
        "lastModified": "2026-06-17T07:46:51.487",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2024-40914",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T17:05:52.834846Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2024-07-12T13:15:14.567",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/0d73477af964dbd7396163a13817baf13940bca9"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/688bb46ad339497b5b7f527b6636d2afe04b46af"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/b2494506f30675245a3e6787281f79601af087bf"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/d72b7711919de49d92a67dfc844a6cf4c23dd794"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/fe6f86f4b40855a130a19aa589f9ba7f650423f4"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/0d73477af964dbd7396163a13817baf13940bca9"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/688bb46ad339497b5b7f527b6636d2afe04b46af"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/b2494506f30675245a3e6787281f79601af087bf"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/d72b7711919de49d92a67dfc844a6cf4c23dd794"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/fe6f86f4b40855a130a19aa589f9ba7f650423f4"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-02-02T10:59:31+00:00",
      "cve": "CVE-2024-40914",
      "id": "CVE-2024-40914",
      "initial_release_date": "2024-07-12T00:00:00+00:00",
      "product_status:fixed": "1295",
      "product_status:known_affected": "50",
      "product_status:known_not_affected": "129",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: mm/huge_memory: don\u0026#39;t unpoison huge_zero_folio",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-40914.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-12T23:54:46Z",
      "cve": "CVE-2024-40914",
      "id": "CVE-2024-40914",
      "initial_release_date": "2024-07-16T02:34:56Z",
      "product_status:known_affected": "398",
      "product_status:known_not_affected": "417",
      "product_status:recommended": "309",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-40914",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-40914.json",
      "version": "68"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2025-11-03T21:57:44.975Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/688bb46ad339497b5b7f527b6636d2afe04b46af"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/b2494506f30675245a3e6787281f79601af087bf"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/0d73477af964dbd7396163a13817baf13940bca9"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/d72b7711919de49d92a67dfc844a6cf4c23dd794"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/fe6f86f4b40855a130a19aa589f9ba7f650423f4"
              },
              {
                "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2024-40914",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-09-10T17:05:52.834846Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-09-11T12:42:25.016Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "mm/memory-failure.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "688bb46ad339497b5b7f527b6636d2afe04b46af",
                  "status": "affected",
                  "version": "f8f836100fff594cea8a0a027affb9d5520f09a7",
                  "versionType": "git"
                },
                {
                  "lessThan": "b2494506f30675245a3e6787281f79601af087bf",
                  "status": "affected",
                  "version": "478d134e9506c7e9bfe2830ed03dd85e97966313",
                  "versionType": "git"
                },
                {
                  "lessThan": "0d73477af964dbd7396163a13817baf13940bca9",
                  "status": "affected",
                  "version": "478d134e9506c7e9bfe2830ed03dd85e97966313",
                  "versionType": "git"
                },
                {
                  "lessThan": "d72b7711919de49d92a67dfc844a6cf4c23dd794",
                  "status": "affected",
                  "version": "478d134e9506c7e9bfe2830ed03dd85e97966313",
                  "versionType": "git"
                },
                {
                  "lessThan": "fe6f86f4b40855a130a19aa589f9ba7f650423f4",
                  "status": "affected",
                  "version": "478d134e9506c7e9bfe2830ed03dd85e97966313",
                  "versionType": "git"
                },
                {
                  "status": "affected",
                  "version": "13d9b8cd12f37d133b07ea5b323583e8a0c6b738",
                  "versionType": "git"
                },
                {
                  "lessThan": "5.15.162",
                  "status": "affected",
                  "version": "5.15.41",
                  "versionType": "semver"
                },
                {
                  "lessThan": "5.18",
                  "status": "affected",
                  "version": "5.17.9",
                  "versionType": "semver"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "mm/memory-failure.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "5.18"
                },
                {
                  "lessThan": "5.18",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.162",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.95",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.35",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.9.*",
                  "status": "unaffected",
                  "version": "6.9.6",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.10",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.162",
                      "versionStartIncluding": "5.15.41",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.95",
                      "versionStartIncluding": "5.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.35",
                      "versionStartIncluding": "5.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.9.6",
                      "versionStartIncluding": "5.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.10",
                      "versionStartIncluding": "5.18",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionStartIncluding": "5.17.9",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: don\u0027t unpoison huge_zero_folio\n\nWhen I did memory failure tests recently, below panic occurs:\n\n kernel BUG at include/linux/mm.h:1135!\n invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 9 PID: 137 Comm: kswapd1 Not tainted 6.9.0-rc4-00491-gd5ce28f156fe-dirty #14\n RIP: 0010:shrink_huge_zero_page_scan+0x168/0x1a0\n RSP: 0018:ffff9933c6c57bd0 EFLAGS: 00000246\n RAX: 000000000000003e RBX: 0000000000000000 RCX: ffff88f61fc5c9c8\n RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff88f61fc5c9c0\n RBP: ffffcd7c446b0000 R08: ffffffff9a9405f0 R09: 0000000000005492\n R10: 00000000000030ea R11: ffffffff9a9405f0 R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000000 R15: ffff88e703c4ac00\n FS:  0000000000000000(0000) GS:ffff88f61fc40000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000055f4da6e9878 CR3: 0000000c71048000 CR4: 00000000000006f0\n Call Trace:\n  \u003cTASK\u003e\n  do_shrink_slab+0x14f/0x6a0\n  shrink_slab+0xca/0x8c0\n  shrink_node+0x2d0/0x7d0\n  balance_pgdat+0x33a/0x720\n  kswapd+0x1f3/0x410\n  kthread+0xd5/0x100\n  ret_from_fork+0x2f/0x50\n  ret_from_fork_asm+0x1a/0x30\n  \u003c/TASK\u003e\n Modules linked in: mce_inject hwpoison_inject\n ---[ end trace 0000000000000000 ]---\n RIP: 0010:shrink_huge_zero_page_scan+0x168/0x1a0\n RSP: 0018:ffff9933c6c57bd0 EFLAGS: 00000246\n RAX: 000000000000003e RBX: 0000000000000000 RCX: ffff88f61fc5c9c8\n RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff88f61fc5c9c0\n RBP: ffffcd7c446b0000 R08: ffffffff9a9405f0 R09: 0000000000005492\n R10: 00000000000030ea R11: ffffffff9a9405f0 R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000000 R15: ffff88e703c4ac00\n FS:  0000000000000000(0000) GS:ffff88f61fc40000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000055f4da6e9878 CR3: 0000000c71048000 CR4: 00000000000006f0\n\nThe root cause is that HWPoison flag will be set for huge_zero_folio\nwithout increasing the folio refcnt.  But then unpoison_memory() will\ndecrease the folio refcnt unexpectedly as it appears like a successfully\nhwpoisoned folio leading to VM_BUG_ON_PAGE(page_ref_count(page) == 0) when\nreleasing huge_zero_folio.\n\nSkip unpoisoning huge_zero_folio in unpoison_memory() to fix this issue. \nWe\u0027re not prepared to unpoison huge_zero_folio yet."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-23T15:50:52.644Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/688bb46ad339497b5b7f527b6636d2afe04b46af"
            },
            {
              "url": "https://git.kernel.org/stable/c/b2494506f30675245a3e6787281f79601af087bf"
            },
            {
              "url": "https://git.kernel.org/stable/c/0d73477af964dbd7396163a13817baf13940bca9"
            },
            {
              "url": "https://git.kernel.org/stable/c/d72b7711919de49d92a67dfc844a6cf4c23dd794"
            },
            {
              "url": "https://git.kernel.org/stable/c/fe6f86f4b40855a130a19aa589f9ba7f650423f4"
            }
          ],
          "title": "mm/huge_memory: don\u0027t unpoison huge_zero_folio",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-40914",
        "datePublished": "2024-07-12T12:24:58.055Z",
        "dateReserved": "2024-07-12T12:17:45.581Z",
        "dateUpdated": "2026-05-23T15:50:52.644Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.