{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-74579",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-74579",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-17T05:28:27.768Z",
    "updatedAt": "2026-10-16T19:05:57.728Z",
    "importedAt": "2026-10-24T01:58:30.346Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "netfilter: nft_payload: fix mask build for partial field offload",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_payload: fix mask build for partial field offload\n\nnft_payload_offload_mask() builds the offload match mask for a payload\nexpression that covers only part of a header field.  For a partial IPv6\naddress match (field_len = 16, priv_len = 1) that shift is 1 << 120, which\nis undefined on the 32-bit int operand.  It also trims only one word, so\nthe remaining words stay 0xffffffff (and when priv_len is a multiple of 4\nthe trim is skipped entirely), leaving the mask covering more bytes than\nthe rule matches.\n\n  UBSAN: shift-out-of-bounds in net/netfilter/nft_payload.c:278:20\n  shift exponent 120 is too large for 32-bit type 'int'\n  ...\n\nThe match is byte-granular and struct nft_data is zero-initialised, so the\ncorrect mask is simply the first priv_len bytes set to 0xff. Set those\nbytes directly and drop the word/shift trimming; this removes the undefined\nshift and no longer over-masks the trailing bytes.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3ee7b3f813b11f28cd6efdf7f24d64b5a7fd4dc7"
            },
            {
              "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8720df4504e0ed1781a702f65251bd47b3534d5e"
            },
            {
              "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
              "status": "affected",
              "versionType": "git",
              "lessThan": "363c3a84a946d53e5e121c9f47c7c2b7d228c46b"
            },
            {
              "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b19b5d2e042c294e2cc1c908dc598f9d64015396"
            },
            {
              "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a375d8ace807767f29f276b681b6324c74929b1d"
            },
            {
              "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
              "status": "affected",
              "versionType": "git",
              "lessThan": "16b553c46e347bc9de9946c4960654d5884a86de"
            },
            {
              "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
              "status": "affected",
              "versionType": "git",
              "lessThan": "630295d5bba1d0e0f494cc459452eb0a0058c545"
            },
            {
              "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
              "status": "affected",
              "versionType": "git",
              "lessThan": "39e88f28fb32bf02bd4b525c24c842c9cff5663d"
            },
            {
              "version": "5c2b4b4f9fa5b765b927e361e3d310bcb5773015",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.9.14",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.10",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.10"
            },
            {
              "version": "5.10.265",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.216",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.183",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.151",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.103",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.44",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}