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CVE-2026-74471 tracing: Check return value of __register_event() in trace_module_add_events()

🗓️ 15 Aug 2026 12:27:08Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 36 Views

Unconditional call to __add_event_to_tracers() after failed __register_event() leaves stale trace_event_call pointer causing use-after-free on module unload.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/trace/trace_events.c"
    ],
    "versions": [
      {
        "version": "ae63b31e4d0e2ec09c569306ea46f664508ef717",
        "lessThan": "3bf965a2827c44f03294107703e7ba53fbd0a69a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ae63b31e4d0e2ec09c569306ea46f664508ef717",
        "lessThan": "9d6d79744f01eacaf3d5522f4fcd59939581abfd",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ae63b31e4d0e2ec09c569306ea46f664508ef717",
        "lessThan": "54b7a358f6399c1242d2fb7f4f96085af34baa5e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ae63b31e4d0e2ec09c569306ea46f664508ef717",
        "lessThan": "d61ee2a27dfd5eb43ddc18af40168f5b9eb1cea5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ae63b31e4d0e2ec09c569306ea46f664508ef717",
        "lessThan": "22f954f7a8afe975e85517aff41b35defe05144b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ae63b31e4d0e2ec09c569306ea46f664508ef717",
        "lessThan": "cbb5ed3be9cae70e1c12b1991009b4e12bf4a4ca",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ae63b31e4d0e2ec09c569306ea46f664508ef717",
        "lessThan": "000765dcdc3edf128990762790543adc4b868f6c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ae63b31e4d0e2ec09c569306ea46f664508ef717",
        "lessThan": "ac8719969e6c3c54e939834df812bc41f25453cf",
        "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/trace/trace_events.c"
    ],
    "versions": [
      {
        "version": "3.10",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.10",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.265",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.216",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.183",
        "lessThanOrEqual": "6.1.*",
        "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"
      }
    ]
  }
]

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