{"id":"CVE-2024-53234","state":"PUBLISHED","title":"erofs: handle NONHEAD !delta[1] lclusters gracefully","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: handle NONHEAD !delta[1] lclusters gracefully\n\nsyzbot reported a WARNING in iomap_iter_done:\n iomap_fiemap+0x73b/0x9b0 fs/iomap/fiemap.c:80\n ioctl_fiemap fs/ioctl.c:220 [inline]\n\nGenerally, NONHEAD lclusters won't have delta[1]==0, except for crafted\nimages and filesystems created by pre-1.0 mkfs versions.\n\nPreviously, it would immediately bail out if delta[1]==0, which led to\ninadequate decompressed lengths (thus FIEMAP is impacted).  Treat it as\ndelta[1]=1 to work around these legacy mkfs versions.\n\n`lclusterbits > 14` is illegal for compact indexes, error out too.","publishedAt":"2024-12-27T13:50:20.909Z","updatedAt":"2026-05-23T15:55:29.414Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d95ae5e25326092d61613acf98280270dde22778","status":"affected","lessThan":"75a0a6dde803e7a3af700da8da9a361b49f69eba","versionType":"git"},{"version":"d95ae5e25326092d61613acf98280270dde22778","status":"affected","lessThan":"f466641debcbea8bdf78d1b63a6270aadf9301bf","versionType":"git"},{"version":"d95ae5e25326092d61613acf98280270dde22778","status":"affected","lessThan":"480c6c7b55aeacac800bc2a0d321ff53273045e5","versionType":"git"},{"version":"d95ae5e25326092d61613acf98280270dde22778","status":"affected","lessThan":"daaf68fef4b2ff97928227630021d37b27a96655","versionType":"git"},{"version":"d95ae5e25326092d61613acf98280270dde22778","status":"affected","lessThan":"0bc8061ffc733a0a246b8689b2d32a3e9204f43c","versionType":"git"},{"version":"96a85becb811ca2ce21a21721f1544d342ae431e","status":"affected","versionType":"git"},{"version":"8c723eef989bc419585237daa467b787ddca5415","status":"affected","versionType":"git"},{"version":"5.4.251","status":"affected","lessThan":"5.5","versionType":"semver"},{"version":"5.10.188","status":"affected","lessThan":"5.11","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/erofs/zmap.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"6.1.127","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.64","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.11.11","status":"unaffected","lessThanOrEqual":"6.11.*","versionType":"semver"},{"version":"6.12.2","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/erofs/zmap.c"]}],"references":["https://git.kernel.org/stable/c/75a0a6dde803e7a3af700da8da9a361b49f69eba","https://git.kernel.org/stable/c/f466641debcbea8bdf78d1b63a6270aadf9301bf","https://git.kernel.org/stable/c/480c6c7b55aeacac800bc2a0d321ff53273045e5","https://git.kernel.org/stable/c/daaf68fef4b2ff97928227630021d37b27a96655","https://git.kernel.org/stable/c/0bc8061ffc733a0a246b8689b2d32a3e9204f43c","https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:08:04.920Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/53xxx/CVE-2024-53234.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-53234","state":"PUBLISHED","datePublished":"2024-12-27T13:50:20.909Z","dateUpdated":"2026-05-23T15:55:29.414Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-11-19T17:17:25.026Z"},"containers":{"cna":{"title":"erofs: handle NONHEAD !delta[1] lclusters gracefully","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: handle NONHEAD !delta[1] lclusters gracefully\n\nsyzbot reported a WARNING in iomap_iter_done:\n iomap_fiemap+0x73b/0x9b0 fs/iomap/fiemap.c:80\n ioctl_fiemap fs/ioctl.c:220 [inline]\n\nGenerally, NONHEAD lclusters won't have delta[1]==0, except for crafted\nimages and filesystems created by pre-1.0 mkfs versions.\n\nPreviously, it would immediately bail out if delta[1]==0, which led to\ninadequate decompressed lengths (thus FIEMAP is impacted).  Treat it as\ndelta[1]=1 to work around these legacy mkfs versions.\n\n`lclusterbits > 14` is illegal for compact indexes, error out too."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d95ae5e25326092d61613acf98280270dde22778","status":"affected","lessThan":"75a0a6dde803e7a3af700da8da9a361b49f69eba","versionType":"git"},{"version":"d95ae5e25326092d61613acf98280270dde22778","status":"affected","lessThan":"f466641debcbea8bdf78d1b63a6270aadf9301bf","versionType":"git"},{"version":"d95ae5e25326092d61613acf98280270dde22778","status":"affected","lessThan":"480c6c7b55aeacac800bc2a0d321ff53273045e5","versionType":"git"},{"version":"d95ae5e25326092d61613acf98280270dde22778","status":"affected","lessThan":"daaf68fef4b2ff97928227630021d37b27a96655","versionType":"git"},{"version":"d95ae5e25326092d61613acf98280270dde22778","status":"affected","lessThan":"0bc8061ffc733a0a246b8689b2d32a3e9204f43c","versionType":"git"},{"version":"96a85becb811ca2ce21a21721f1544d342ae431e","status":"affected","versionType":"git"},{"version":"8c723eef989bc419585237daa467b787ddca5415","status":"affected","versionType":"git"},{"version":"5.4.251","status":"affected","lessThan":"5.5","versionType":"semver"},{"version":"5.10.188","status":"affected","lessThan":"5.11","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/erofs/zmap.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"6.1.127","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.64","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.11.11","status":"unaffected","lessThanOrEqual":"6.11.*","versionType":"semver"},{"version":"6.12.2","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/erofs/zmap.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/75a0a6dde803e7a3af700da8da9a361b49f69eba"},{"url":"https://git.kernel.org/stable/c/f466641debcbea8bdf78d1b63a6270aadf9301bf"},{"url":"https://git.kernel.org/stable/c/480c6c7b55aeacac800bc2a0d321ff53273045e5"},{"url":"https://git.kernel.org/stable/c/daaf68fef4b2ff97928227630021d37b27a96655"},{"url":"https://git.kernel.org/stable/c/0bc8061ffc733a0a246b8689b2d32a3e9204f43c"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T15:55:29.414Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.1.127"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.6.64"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.11.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.12.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.251"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.188"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T20:48:01.055Z"}}]}}}