CVE-2026-74579 netfilter: nft_payload: fix mask build for partial field offload

🗓️ 17 Aug 2026 05:28:27Reported by LinuxType

UBSAN shift-out-of-bounds in nft_payload_offload_mask() from undefined 1<<120 shift on 32-bit int.

Reporter	Title	Published	Views	Family All 8
ATTACKERKB	CVE-2026-74579	17 Aug 202605:28	–	attackerkb
Circl	CVE-2026-74579	17 Aug 202605:51	–	circl
CVE	CVE-2026-74579	17 Aug 202605:28	–	cve
Debian CVE	CVE-2026-74579	17 Aug 202605:28	–	debiancve
EUVD	EUVD-2026-60050	17 Aug 202605:28	–	euvd
NVD	CVE-2026-74579	17 Aug 202606:19	–	nvd
OSV	DEBIAN-CVE-2026-74579	17 Aug 202606:19	–	osv
Positive Technologies	PT-2026-73208	17 Aug 202600:00	–	ptsecurity

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/netfilter/nft_payload.c"
    ],
    "versions": [
      {
        "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
        "lessThan": "b19b5d2e042c294e2cc1c908dc598f9d64015396",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
        "lessThan": "a375d8ace807767f29f276b681b6324c74929b1d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
        "lessThan": "16b553c46e347bc9de9946c4960654d5884a86de",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
        "lessThan": "630295d5bba1d0e0f494cc459452eb0a0058c545",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a5d45bc0dc50f9dd83703510e9804d813a9cac32",
        "lessThan": "39e88f28fb32bf02bd4b525c24c842c9cff5663d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5c2b4b4f9fa5b765b927e361e3d310bcb5773015",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5.9.14",
        "lessThan": "5.10",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/netfilter/nft_payload.c"
    ],
    "versions": [
      {
        "version": "5.10",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.10",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.151",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.103",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.44",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.8",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/39e88f28fb32bf02bd4b525c24c842c9cff5663d
git	www.git.kernel.org/stable/c/a375d8ace807767f29f276b681b6324c74929b1d
git	www.git.kernel.org/stable/c/16b553c46e347bc9de9946c4960654d5884a86de
git	www.git.kernel.org/stable/c/b19b5d2e042c294e2cc1c908dc598f9d64015396
git	www.git.kernel.org/stable/c/630295d5bba1d0e0f494cc459452eb0a0058c545

17 Aug 2026 05:28Current

EPSS0.00157