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CVE-2026-23140 bpf, test_run: Subtract size of xdp_frame from allowed metadata size

🗓️ 14 Feb 2026 15:22:24Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 29 Views

Kernel fix for bpf_test_run metadata size and xdp frame headroom to prevent uninitialised frames.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/bpf/test_run.c"
    ],
    "versions": [
      {
        "version": "b6f1f780b3932ae497ed85e79bc8a1e513883624",
        "lessThan": "e7440935063949d6f2c10f7328d960d0ff4bce90",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b6f1f780b3932ae497ed85e79bc8a1e513883624",
        "lessThan": "7c81ad5e580bd8441f8a521a8d34824ce6582ae5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b6f1f780b3932ae497ed85e79bc8a1e513883624",
        "lessThan": "6447e697cfa8a43a8e491cb81bcc390d0f28f8ba",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b6f1f780b3932ae497ed85e79bc8a1e513883624",
        "lessThan": "31e37f44b60679d90b9f999c91371b15291be8e0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b6f1f780b3932ae497ed85e79bc8a1e513883624",
        "lessThan": "e558cca217790286e799a8baacd1610bda31b261",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/bpf/test_run.c"
    ],
    "versions": [
      {
        "version": "5.18",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.18",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.161",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.121",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.66",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.6",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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