{"id":"CVE-2026-64111","summary":"lsm: hold cred_guard_mutex for lsm_set_self_attr()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nlsm: hold cred_guard_mutex for lsm_set_self_attr()\n\nJust as proc_pid_attr_write() already does before calling the LSM\nhook. This only matters for SELinux and AppArmor which check\nwhether the process is being ptraced and if so, whether to\nallow the transition.","modified":"2026-07-22T05:30:02.675527148Z","published":"2026-07-19T15:40:13.007Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64111.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/4a9b16541ad3faf8bccb398532bf3f8b6bbf1188"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5b906f31e977286888a9e31282589b545b249139"},{"type":"WEB","url":"https://git.kernel.org/stable/c/82d3acee88593e3d9e71cad4b7d6b3cf70de9d07"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a010cadaf5727b8417f62fe9021fcef14a5f9b51"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64111.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64111"},{"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":"a04a1198088a1378d0389c250cc684f649bcc91e"},{"fixed":"82d3acee88593e3d9e71cad4b7d6b3cf70de9d07"},{"fixed":"5b906f31e977286888a9e31282589b545b249139"},{"fixed":"a010cadaf5727b8417f62fe9021fcef14a5f9b51"},{"fixed":"4a9b16541ad3faf8bccb398532bf3f8b6bbf1188"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64111.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.8.0"},{"fixed":"6.12.92"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.34"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.11"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64111.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"}]}