{"api_version":"1","generated_at":"2026-06-25T14:13:23+00:00","cve":"CVE-2026-53129","urls":{"html":"https://cve.report/CVE-2026-53129","api":"https://cve.report/api/cve/CVE-2026-53129.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53129","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53129"},"summary":{"title":"fs/mbcache: cancel shrink work before destroying the cache","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-24 17:17:28","updated_at":"2026-06-24 17:17:28"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/d227786ab1119669df4dc333a61510c52047cce4","name":"https://git.kernel.org/stable/c/d227786ab1119669df4dc333a61510c52047cce4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b25fd3523bef88fb7ffd4c5b63bbe9c08f73bb4c","name":"https://git.kernel.org/stable/c/b25fd3523bef88fb7ffd4c5b63bbe9c08f73bb4c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0e4eff315d799f5842b95872199b0f0fb8ef5f51","name":"https://git.kernel.org/stable/c/0e4eff315d799f5842b95872199b0f0fb8ef5f51","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a88d39a74a208e197c03bffaa2df34de732af19f","name":"https://git.kernel.org/stable/c/a88d39a74a208e197c03bffaa2df34de732af19f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53129","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53129","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c2f3140fe2eceb3a6c1615b2648b9471544881c6 a88d39a74a208e197c03bffaa2df34de732af19f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c2f3140fe2eceb3a6c1615b2648b9471544881c6 0e4eff315d799f5842b95872199b0f0fb8ef5f51 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c2f3140fe2eceb3a6c1615b2648b9471544881c6 b25fd3523bef88fb7ffd4c5b63bbe9c08f73bb4c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c2f3140fe2eceb3a6c1615b2648b9471544881c6 d227786ab1119669df4dc333a61510c52047cce4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.6","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.6 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.91 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.33 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.10 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/mbcache.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a88d39a74a208e197c03bffaa2df34de732af19f","status":"affected","version":"c2f3140fe2eceb3a6c1615b2648b9471544881c6","versionType":"git"},{"lessThan":"0e4eff315d799f5842b95872199b0f0fb8ef5f51","status":"affected","version":"c2f3140fe2eceb3a6c1615b2648b9471544881c6","versionType":"git"},{"lessThan":"b25fd3523bef88fb7ffd4c5b63bbe9c08f73bb4c","status":"affected","version":"c2f3140fe2eceb3a6c1615b2648b9471544881c6","versionType":"git"},{"lessThan":"d227786ab1119669df4dc333a61510c52047cce4","status":"affected","version":"c2f3140fe2eceb3a6c1615b2648b9471544881c6","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/mbcache.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.6"},{"lessThan":"4.6","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.91","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.91","versionStartIncluding":"4.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.33","versionStartIncluding":"4.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.10","versionStartIncluding":"4.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"4.6","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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."}],"providerMetadata":{"dateUpdated":"2026-06-24T16:30:56.562Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53129","datePublished":"2026-06-24T16:30:56.562Z","dateReserved":"2026-06-09T07:44:35.386Z","dateUpdated":"2026-06-24T16:30:56.562Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-24 17:17:28","lastModifiedDate":"2026-06-24 17:17:28","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53129","Ordinal":"1","Title":"fs/mbcache: cancel shrink work before destroying the cache","CVE":"CVE-2026-53129","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53129","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"fs/mbcache: cancel shrink work before destroying the cache"}]}}}