FKIE_CVE-2026-80669

Vulnerability from fkie_nvd - Published: 2026-08-28 08:16 - Updated: 2026-08-28 08:16
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: Disable xfrm_decode_session hook attachment BPF LSM programs can currently attach to xfrm_decode_session(). That hook may return an error, but security_skb_classify_flow() calls it from a void path and triggers BUG_ON() if an error is returned. Disable BPF attachment to the hook to prevent a BPF LSM program from turning packet classification into a full panic.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/12091470c6b4c1c14b2de12dcbae2ada6cb6d20b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1bb3b6a5c3c5cc814eae4ff0212fdced36f8bce9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/49fa1be621dde8f526d36e5791aded8fafda1e9c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4ae780d173ef40d4f7cb76935dc2d55fbf380009
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6b44c6660aa1c9b843e450a623ac4a8484919dce
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aa265d47308775c5501073b08133623bcb5421f9
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/bpf_lsm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "aa265d47308775c5501073b08133623bcb5421f9",
              "status": "affected",
              "version": "9e4e01dfd3254c7f04f24b7c6b29596bc12332f3",
              "versionType": "git"
            },
            {
              "lessThan": "6b44c6660aa1c9b843e450a623ac4a8484919dce",
              "status": "affected",
              "version": "9e4e01dfd3254c7f04f24b7c6b29596bc12332f3",
              "versionType": "git"
            },
            {
              "lessThan": "4ae780d173ef40d4f7cb76935dc2d55fbf380009",
              "status": "affected",
              "version": "9e4e01dfd3254c7f04f24b7c6b29596bc12332f3",
              "versionType": "git"
            },
            {
              "lessThan": "49fa1be621dde8f526d36e5791aded8fafda1e9c",
              "status": "affected",
              "version": "9e4e01dfd3254c7f04f24b7c6b29596bc12332f3",
              "versionType": "git"
            },
            {
              "lessThan": "1bb3b6a5c3c5cc814eae4ff0212fdced36f8bce9",
              "status": "affected",
              "version": "9e4e01dfd3254c7f04f24b7c6b29596bc12332f3",
              "versionType": "git"
            },
            {
              "lessThan": "12091470c6b4c1c14b2de12dcbae2ada6cb6d20b",
              "status": "affected",
              "version": "9e4e01dfd3254c7f04f24b7c6b29596bc12332f3",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/bpf_lsm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.7"
            },
            {
              "lessThan": "5.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Disable xfrm_decode_session hook attachment\n\nBPF LSM programs can currently attach to xfrm_decode_session(). That\nhook may return an error, but security_skb_classify_flow() calls it\nfrom a void path and triggers BUG_ON() if an error is returned.\n\nDisable BPF attachment to the hook to prevent a BPF LSM program from\nturning packet classification into a full panic."
    }
  ],
  "id": "CVE-2026-80669",
  "lastModified": "2026-08-28T08:16:52.207",
  "metrics": {},
  "published": "2026-08-28T08:16:52.207",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/12091470c6b4c1c14b2de12dcbae2ada6cb6d20b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1bb3b6a5c3c5cc814eae4ff0212fdced36f8bce9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/49fa1be621dde8f526d36e5791aded8fafda1e9c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4ae780d173ef40d4f7cb76935dc2d55fbf380009"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6b44c6660aa1c9b843e450a623ac4a8484919dce"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/aa265d47308775c5501073b08133623bcb5421f9"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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