{"id":"CVE-2026-68153","summary":"libceph: remove debugfs files before client teardown","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: remove debugfs files before client teardown\n\nceph_destroy_client() tears down the monitor client before removing\nthe per-client debugfs files. A concurrent read of the monmap debugfs\nfile can enter monmap_show() after ceph_monc_stop() has freed\nmonc-\u003emonmap, triggering a use-after-free.\n\nRemove the debugfs files before stopping the OSD and monitor clients.\ndebugfs_remove() drains active handlers and prevents new accesses, so\nthe debugfs callbacks can no longer race the rest of client teardown.","modified":"2026-08-21T03:30:14.501029667Z","published":"2026-08-10T11:59:19.302Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68153.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/463a264e9094384112a5c8b46f0a9ddaf8566904"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8f5a3abc54ba24dbceb14cc3a719908c4f688091"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ac78549d186090ee7125d28c3a8c376573b36194"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b9fedda2f628e030384228de0dafc574b7fb0c2f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d3dc8889d39a676bf840132bd5c5c48cb0daba23"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e4c804726c4afce3ba648b982d564f6af2cfa328"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fc1010e7e0204ece6cc0f9af4f473e9553535eab"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fe46b7e06f14f6f94766832df309b249cb689d27"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68153.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68153"},{"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":"76aa844d5b2fb8c839180d3f5874e333b297e5fd"},{"fixed":"ac78549d186090ee7125d28c3a8c376573b36194"},{"fixed":"463a264e9094384112a5c8b46f0a9ddaf8566904"},{"fixed":"fe46b7e06f14f6f94766832df309b249cb689d27"},{"fixed":"fc1010e7e0204ece6cc0f9af4f473e9553535eab"},{"fixed":"d3dc8889d39a676bf840132bd5c5c48cb0daba23"},{"fixed":"8f5a3abc54ba24dbceb14cc3a719908c4f688091"},{"fixed":"b9fedda2f628e030384228de0dafc574b7fb0c2f"},{"fixed":"e4c804726c4afce3ba648b982d564f6af2cfa328"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68153.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.6.34"},{"fixed":"5.10.265"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.216"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.183"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.148"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.101"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.42"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68153.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}