{"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"}}}}

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