{"id":"CVE-2026-99237","summary":"tracing: Hold trace_types_lock when resetting last boot data from readers","details":"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.","modified":"2026-11-10T17:27:01.639098638Z","published":"2026-11-02T16:06:42.386Z","related":["openSUSE-SU-2026:12497-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/99xxx/CVE-2026-99237.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1f06cfe0b60a878619d1d8efe1cd0f515b7dc2aa"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5a6bd62f09147b49b31fd19d4eba122cb5f941a1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/92b69f6db640dadc0851762ee2e12db99f083cad"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d6d991afe775ab7fcf89523a2502b7ca3be56ffd"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/99xxx/CVE-2026-99237.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-99237"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"32dc0042528d385d83bf458e4cf3a49c5110afea"},{"fixed":"92b69f6db640dadc0851762ee2e12db99f083cad"},{"fixed":"d6d991afe775ab7fcf89523a2502b7ca3be56ffd"},{"fixed":"1f06cfe0b60a878619d1d8efe1cd0f515b7dc2aa"},{"fixed":"5a6bd62f09147b49b31fd19d4eba122cb5f941a1"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-99237.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.16.0"},{"fixed":"6.18.60"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.14"}]},{"type":"ECOSYSTEM","events":[{"introduced":"7.3.0"},{"fixed":"7.3.1"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-99237.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}