selinux: fix BPF token permission checks

{
  "id": "8d08e4531ffdfe4cb13b4ade716fe1caf1863623843db0fdfca3e22c75f3ab94",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-99129",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "selinux: fix BPF token permission checks",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: selinux: fix BPF token permission checks Avoid multiple lookups of the bpffs creator SID using the token's file descriptor when the same information can be found via the resolved path/dentry (in selinux_bpf_token_create()) or the token itself (in selinux_bpf_map_create() and selinux_bpf_prog_load()). Not only does this simplify the code, it avoids potential TOCTOU issues if the user changes the token file descriptor passed into the kernel.",
    "evidence": "cve:CVE-2026-99129",
    "products": [
      {
        "name": {
          "value": "Linux",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      },
      {
        "name": {
          "value": "Linux",
          "evidence": "/containers/cna/affected/1/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-99129",
      "aliases": [
        "CVE-2026-99129"
      ],
      "metrics": [],
      "affected": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5473a722f782f79f96b4691400d681c01fcacc2f",
              "lessThan": "e1ef306ba20eb13099ca4463527890df67619405",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5473a722f782f79f96b4691400d681c01fcacc2f",
              "lessThan": "77d499e61d36e883a6ad1f10afe05f556aa7e0cc",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "security/selinux/hooks.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.0"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "7.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "7.2.13",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "security/selinux/hooks.c"
          ],
          "defaultStatus": "affected"
        }
      ],
      "modified": "2026-10-28T10:34:42.881Z",
      "provider": "cve",
      "references": [
        "https://git.kernel.org/stable/c/e1ef306ba20eb13099ca4463527890df67619405",
        "https://git.kernel.org/stable/c/77d499e61d36e883a6ad1f10afe05f556aa7e0cc"
      ],
      "provider_metadata": {
        "cna": {
          "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "shortName": "Linux",
          "dateUpdated": "2026-10-28T10:34:42.881Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-99129",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-cve",
  "document_id": 425352,
  "published_at": "2026-10-28T10:34:42.881+00:00"
}