{"id":"CVE-2026-99237","published":"2026-11-02T16:17:49.213","lastModified":"2026-11-02T16:17:49.213","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Hold trace_types_lock when resetting last boot data from readers\n\nupdate_last_data_if_empty() is called from tracing_open() with O_TRUNC,\ntracing_read_pipe() and tracing_buffers_read() without trace_types_lock.\nTwo readers can both pass the LAST_BOOT test and free module_delta\ntwice, and a module notifier can update module_delta while it is being\nfreed.\n\nTake trace_types_lock in those paths and keep the callers that already\nhold it on an unlocked variant.","cvssScore":7.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/1f06cfe0b60a878619d1d8efe1cd0f515b7dc2aa","tags":[]},{"url":"https://git.kernel.org/stable/c/92b69f6db640dadc0851762ee2e12db99f083cad","tags":[]},{"url":"https://git.kernel.org/stable/c/d6d991afe775ab7fcf89523a2502b7ca3be56ffd","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}