CVE-2026-45901 (GCVE-0-2026-45901)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:17 – Updated: 2026-08-03 09:32
VLAI
Title
netfilter: nf_tables: revert commit_mutex usage in reset path
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: revert commit_mutex usage in reset path It causes circular lock dependency between commit_mutex, nfnl_subsys_ipset and nlk_cb_mutex when nft reset, ipset list, and iptables-nft with '-m set' rule run at the same time. Previous patches made it safe to run individual reset handlers concurrently so commit_mutex is no longer required to prevent this.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 3cb03edb4de33fd04c4ea55f47397b96a8657c53 , < d66bedfe97a2bc321fa8118e669aae988038f729 (git)
Affected: 3cb03edb4de33fd04c4ea55f47397b96a8657c53 , < f6410d18c1e2da325df02be989d5bca5ed38b086 (git)
Affected: 3cb03edb4de33fd04c4ea55f47397b96a8657c53 , < ee3978b6a0dcd4215cb7cedcba705a12174786a7 (git)
Affected: 3cb03edb4de33fd04c4ea55f47397b96a8657c53 , < 7f261bb906bf527c4a6e2a646e2d5f3679f2a8bc (git)
Affected: fb1adb05ea87b6149e65a31e511756c4f470d0cd (git)
Affected: f123293db16dcd0cd81b246ae60e6362f0025d0a (git)
Affected: 6.1.107 , < 6.2 (semver)
Affected: 6.6.48 , < 6.7 (semver)
Create a notification for this product.
Linux Linux Affected: 6.7
Unaffected: 0 , < 6.7 (semver)
Unaffected: 6.12.101 , ≤ 6.12.* (semver)
Unaffected: 6.18.42 , ≤ 6.18.* (semver)
Unaffected: 6.19.4 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/nf_tables_api.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d66bedfe97a2bc321fa8118e669aae988038f729",
              "status": "affected",
              "version": "3cb03edb4de33fd04c4ea55f47397b96a8657c53",
              "versionType": "git"
            },
            {
              "lessThan": "f6410d18c1e2da325df02be989d5bca5ed38b086",
              "status": "affected",
              "version": "3cb03edb4de33fd04c4ea55f47397b96a8657c53",
              "versionType": "git"
            },
            {
              "lessThan": "ee3978b6a0dcd4215cb7cedcba705a12174786a7",
              "status": "affected",
              "version": "3cb03edb4de33fd04c4ea55f47397b96a8657c53",
              "versionType": "git"
            },
            {
              "lessThan": "7f261bb906bf527c4a6e2a646e2d5f3679f2a8bc",
              "status": "affected",
              "version": "3cb03edb4de33fd04c4ea55f47397b96a8657c53",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "fb1adb05ea87b6149e65a31e511756c4f470d0cd",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f123293db16dcd0cd81b246ae60e6362f0025d0a",
              "versionType": "git"
            },
            {
              "lessThan": "6.2",
              "status": "affected",
              "version": "6.1.107",
              "versionType": "semver"
            },
            {
              "lessThan": "6.7",
              "status": "affected",
              "version": "6.6.48",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/nf_tables_api.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.7"
            },
            {
              "lessThan": "6.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.101",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.42",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.101",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.42",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.4",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.1.107",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.6.48",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: revert commit_mutex usage in reset path\n\nIt causes circular lock dependency between commit_mutex, nfnl_subsys_ipset\nand nlk_cb_mutex when nft reset, ipset list, and iptables-nft with \u0027-m set\u0027\nrule run at the same time.\n\nPrevious patches made it safe to run individual reset handlers concurrently\nso commit_mutex is no longer required to prevent this."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-03T09:32:31.525Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d66bedfe97a2bc321fa8118e669aae988038f729"
        },
        {
          "url": "https://git.kernel.org/stable/c/f6410d18c1e2da325df02be989d5bca5ed38b086"
        },
        {
          "url": "https://git.kernel.org/stable/c/ee3978b6a0dcd4215cb7cedcba705a12174786a7"
        },
        {
          "url": "https://git.kernel.org/stable/c/7f261bb906bf527c4a6e2a646e2d5f3679f2a8bc"
        }
      ],
      "title": "netfilter: nf_tables: revert commit_mutex usage in reset path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-45901",
    "datePublished": "2026-05-27T12:17:09.861Z",
    "dateReserved": "2026-05-13T15:03:33.084Z",
    "dateUpdated": "2026-08-03T09:32:31.525Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-45901",
      "date": "2026-08-03",
      "epss": "0.00137",
      "percentile": "0.03582"
    },
    "microsoft_vex": {
      "current_release_date": "2026-06-28T01:45:37.000Z",
      "cve": "CVE-2026-45901",
      "id": "msrc_CVE-2026-45901",
      "initial_release_date": "2026-05-02T00:00:00.000Z",
      "product_status:known_affected": "3",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "netfilter: nf_tables: revert commit_mutex usage in reset path",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-45901.json",
      "version": "4"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-45901\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-05-27T14:17:04.483\",\"lastModified\":\"2026-08-03T10:16:28.903\",\"vulnStatus\":\"Undergoing Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: nf_tables: revert commit_mutex usage in reset path\\n\\nIt causes circular lock dependency between commit_mutex, nfnl_subsys_ipset\\nand nlk_cb_mutex when nft reset, ipset list, and iptables-nft with \u0027-m set\u0027\\nrule run at the same time.\\n\\nPrevious patches made it safe to run individual reset handlers concurrently\\nso commit_mutex is no longer required to prevent this.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/netfilter/nf_tables_api.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3cb03edb4de33fd04c4ea55f47397b96a8657c53\",\"lessThan\":\"d66bedfe97a2bc321fa8118e669aae988038f729\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3cb03edb4de33fd04c4ea55f47397b96a8657c53\",\"lessThan\":\"f6410d18c1e2da325df02be989d5bca5ed38b086\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3cb03edb4de33fd04c4ea55f47397b96a8657c53\",\"lessThan\":\"ee3978b6a0dcd4215cb7cedcba705a12174786a7\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3cb03edb4de33fd04c4ea55f47397b96a8657c53\",\"lessThan\":\"7f261bb906bf527c4a6e2a646e2d5f3679f2a8bc\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fb1adb05ea87b6149e65a31e511756c4f470d0cd\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f123293db16dcd0cd81b246ae60e6362f0025d0a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6.1.107\",\"lessThan\":\"6.2\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.6.48\",\"lessThan\":\"6.7\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/netfilter/nf_tables_api.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.7\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.7\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.101\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.42\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.19.4\",\"lessThanOrEqual\":\"6.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.0\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.1.107\",\"versionEndExcluding\":\"6.2\",\"matchCriteriaId\":\"8A1E4A4D-E736-4034-B734-953CD5D22F1D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.6.48\",\"versionEndExcluding\":\"6.19.4\",\"matchCriteriaId\":\"B3E44F97-A592-4211-A207-407DFC22549C\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/7f261bb906bf527c4a6e2a646e2d5f3679f2a8bc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d66bedfe97a2bc321fa8118e669aae988038f729\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ee3978b6a0dcd4215cb7cedcba705a12174786a7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f6410d18c1e2da325df02be989d5bca5ed38b086\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-27T16:19:47+00:00",
      "cve": "CVE-2026-45901",
      "id": "CVE-2026-45901",
      "initial_release_date": "2026-05-27T00:00:00+00:00",
      "product_status:known_affected": "76",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: netfilter: nf_tables: revert commit_mutex usage in reset path",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45901.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-15T05:09:07Z",
      "cve": "CVE-2026-45901",
      "id": "CVE-2026-45901",
      "initial_release_date": "2026-05-28T03:56:33Z",
      "product_status:known_affected": "17",
      "product_status:known_not_affected": "276",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-45901",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-45901.json",
      "version": "5"
    }
  }
}



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.