{"api_version":"1","generated_at":"2026-06-26T20:55:29+00:00","cve":"CVE-2026-53272","urls":{"html":"https://cve.report/CVE-2026-53272","api":"https://cve.report/api/cve/CVE-2026-53272.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53272","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53272"},"summary":{"title":"erofs: fix use-after-free on sbi->sync_decompress","description":"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!!","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-25 09:16:45","updated_at":"2026-06-25 09:16:45"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/1aee05e814d292064bf5fa15733741040cdc48ba","name":"https://git.kernel.org/stable/c/1aee05e814d292064bf5fa15733741040cdc48ba","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/00bf6868df65fa95b3854996246d15759fdc7070","name":"https://git.kernel.org/stable/c/00bf6868df65fa95b3854996246d15759fdc7070","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/86ab00cf81d44b675bb23db62b88fd76c8ac8cea","name":"https://git.kernel.org/stable/c/86ab00cf81d44b675bb23db62b88fd76c8ac8cea","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/95caf60da33d87ed26c28993620f0d92487b0296","name":"https://git.kernel.org/stable/c/95caf60da33d87ed26c28993620f0d92487b0296","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53272","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53272","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 40452ffca3c1a0f2994e826f9fa213b107f1a2d4 86ab00cf81d44b675bb23db62b88fd76c8ac8cea git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 40452ffca3c1a0f2994e826f9fa213b107f1a2d4 00bf6868df65fa95b3854996246d15759fdc7070 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 40452ffca3c1a0f2994e826f9fa213b107f1a2d4 95caf60da33d87ed26c28993620f0d92487b0296 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 40452ffca3c1a0f2994e826f9fa213b107f1a2d4 1aee05e814d292064bf5fa15733741040cdc48ba git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.17","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.17 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.94 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.36 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.13 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":{"cve_year":"2026","cve_id":"53272","cve":"CVE-2026-53272","epss":"0.001640000","percentile":"0.058950000","score_date":"2026-06-25","updated_at":"2026-06-26 00:06:14"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/erofs/zdata.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"86ab00cf81d44b675bb23db62b88fd76c8ac8cea","status":"affected","version":"40452ffca3c1a0f2994e826f9fa213b107f1a2d4","versionType":"git"},{"lessThan":"00bf6868df65fa95b3854996246d15759fdc7070","status":"affected","version":"40452ffca3c1a0f2994e826f9fa213b107f1a2d4","versionType":"git"},{"lessThan":"95caf60da33d87ed26c28993620f0d92487b0296","status":"affected","version":"40452ffca3c1a0f2994e826f9fa213b107f1a2d4","versionType":"git"},{"lessThan":"1aee05e814d292064bf5fa15733741040cdc48ba","status":"affected","version":"40452ffca3c1a0f2994e826f9fa213b107f1a2d4","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/erofs/zdata.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.17"},{"lessThan":"5.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.94","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.36","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.13","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":"6.12.94","versionStartIncluding":"5.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.36","versionStartIncluding":"5.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.13","versionStartIncluding":"5.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"5.17","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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!!"}],"providerMetadata":{"dateUpdated":"2026-06-25T08:39:57.147Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53272","datePublished":"2026-06-25T08:39:57.147Z","dateReserved":"2026-06-09T07:44:35.395Z","dateUpdated":"2026-06-25T08:39:57.147Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-25 09:16:45","lastModifiedDate":"2026-06-25 09:16:45","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53272","Ordinal":"1","Title":"erofs: fix use-after-free on sbi->sync_decompress","CVE":"CVE-2026-53272","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53272","Ordinal":"1","NoteData":"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!!","Type":"Description","Title":"erofs: fix use-after-free on sbi->sync_decompress"}]}}}