{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53272", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.395Z", "datePublished": "2026-06-25T08:39:57.147Z", "dateUpdated": "2026-06-25T08:39:57.147Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-25T08:39:57.147Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: fix use-after-free on sbi->sync_decompress\n\nz_erofs_decompress_kickoff() can race with filesystem unmount, causing\na use-after-free on sbi->sync_decompress.\n\nWhen I/O completes, z_erofs_endio() calls z_erofs_decompress_kickoff()\nto queue z_erofs_decompressqueue_work() asynchronously. Then, after all\nfolios are unlocked, unmount workflow can proceed and sbi will be freed\nbefore accessing to sbi->sync_decompress.\n\nThread (unmount) I/O completion kworker\n queue_work\n z_erofs_decompressqueue_work\n (all folios are unlocked)\ncleanup_mnt\n ..\n erofs_kill_sb\n erofs_sb_free\n kfree(sbi)\n access sbi->sync_decompress // UAF!!"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/erofs/zdata.c"], "versions": [{"version": "40452ffca3c1a0f2994e826f9fa213b107f1a2d4", "lessThan": "86ab00cf81d44b675bb23db62b88fd76c8ac8cea", "status": "affected", "versionType": "git"}, {"version": "40452ffca3c1a0f2994e826f9fa213b107f1a2d4", "lessThan": "00bf6868df65fa95b3854996246d15759fdc7070", "status": "affected", "versionType": "git"}, {"version": "40452ffca3c1a0f2994e826f9fa213b107f1a2d4", "lessThan": "95caf60da33d87ed26c28993620f0d92487b0296", "status": "affected", "versionType": "git"}, {"version": "40452ffca3c1a0f2994e826f9fa213b107f1a2d4", "lessThan": "1aee05e814d292064bf5fa15733741040cdc48ba", "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/erofs/zdata.c"], "versions": [{"version": "5.17", "status": "affected"}, {"version": "0", "lessThan": "5.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.94", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.36", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.13", "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": "5.17", "versionEndExcluding": "6.12.94"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "6.18.36"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "7.0.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/86ab00cf81d44b675bb23db62b88fd76c8ac8cea"}, {"url": "https://git.kernel.org/stable/c/00bf6868df65fa95b3854996246d15759fdc7070"}, {"url": "https://git.kernel.org/stable/c/95caf60da33d87ed26c28993620f0d92487b0296"}, {"url": "https://git.kernel.org/stable/c/1aee05e814d292064bf5fa15733741040cdc48ba"}], "title": "erofs: fix use-after-free on sbi->sync_decompress", "x_generator": {"engine": "bippy-1.2.0"}}}}

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