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CVE-2026-93173 bpf,lsm: Drop bpf_prog_free from sleepable_lsm_hooks

🗓️ 17 Sep 2026 16:12:03Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 42 Views

Linux kernel bpf lsm: bpf_prog_free in softirq triggers might_fault BUG on sleepable hooks.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/bpf/bpf_lsm.c"
    ],
    "versions": [
      {
        "version": "1b67772e4e3f16cd647b229cae95fc06d120be08",
        "lessThan": "2135f661fae7160a7fc603cab43cbc7999e8bfce",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1b67772e4e3f16cd647b229cae95fc06d120be08",
        "lessThan": "d5f2f741a900123fbcb7c7c0a002b81306fbe242",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1b67772e4e3f16cd647b229cae95fc06d120be08",
        "lessThan": "915c2d9d69fc6c5f9f41d12bf4a9c51293aaee62",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1b67772e4e3f16cd647b229cae95fc06d120be08",
        "lessThan": "2ce3f548cfc6a1fe4c53479cf8a21931cdfd51d8",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/bpf/bpf_lsm.c"
    ],
    "versions": [
      {
        "version": "6.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.9",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.110",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.52",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.6",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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