{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53129","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-06-09T07:44:35.386Z","datePublished":"2026-06-24T16:30:56.562Z","dateUpdated":"2026-06-24T16:30:56.562Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-06-24T16:30:56.562Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfs/mbcache: cancel shrink work before destroying the cache\n\nmb_cache_destroy() calls shrinker_free() and then frees all cache\nentries and the cache itself, but it does not cancel the pending\nc_shrink_work work item first.\n\nIf mb_cache_entry_create() schedules c_shrink_work via schedule_work()\nand the work item is still pending or running when mb_cache_destroy()\nruns, mb_cache_shrink_worker() will access the cache after its memory\nhas been freed, causing a use-after-free.\n\nThis is only reachable by a privileged user (root or CAP_SYS_ADMIN)\nwho can trigger the last put of a mounted ext2/ext4/ocfs2 filesystem.\n\nCancel the work item with cancel_work_sync() before calling\nshrinker_free(), ensuring the worker has finished and will not be\nrescheduled before the cache is torn down."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/mbcache.c"],"versions":[{"version":"c2f3140fe2eceb3a6c1615b2648b9471544881c6","lessThan":"a88d39a74a208e197c03bffaa2df34de732af19f","status":"affected","versionType":"git"},{"version":"c2f3140fe2eceb3a6c1615b2648b9471544881c6","lessThan":"0e4eff315d799f5842b95872199b0f0fb8ef5f51","status":"affected","versionType":"git"},{"version":"c2f3140fe2eceb3a6c1615b2648b9471544881c6","lessThan":"b25fd3523bef88fb7ffd4c5b63bbe9c08f73bb4c","status":"affected","versionType":"git"},{"version":"c2f3140fe2eceb3a6c1615b2648b9471544881c6","lessThan":"d227786ab1119669df4dc333a61510c52047cce4","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/mbcache.c"],"versions":[{"version":"4.6","status":"affected"},{"version":"0","lessThan":"4.6","status":"unaffected","versionType":"semver"},{"version":"6.12.91","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.33","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.10","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.12.91"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.18.33"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"7.0.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/a88d39a74a208e197c03bffaa2df34de732af19f"},{"url":"https://git.kernel.org/stable/c/0e4eff315d799f5842b95872199b0f0fb8ef5f51"},{"url":"https://git.kernel.org/stable/c/b25fd3523bef88fb7ffd4c5b63bbe9c08f73bb4c"},{"url":"https://git.kernel.org/stable/c/d227786ab1119669df4dc333a61510c52047cce4"}],"title":"fs/mbcache: cancel shrink work before destroying the cache","x_generator":{"engine":"bippy-1.2.0"}}}}