{"id":"CVE-2024-53234","summary":"erofs: handle NONHEAD !delta[1] lclusters gracefully","details":"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 \u003e 14` is illegal for compact indexes, error out too.","modified":"2026-04-02T12:23:02.590532Z","published":"2024-12-27T13:50:20.909Z","related":["SUSE-SU-2025:0117-1","SUSE-SU-2025:0153-1","SUSE-SU-2025:0154-1","SUSE-SU-2025:0289-1","SUSE-SU-2025:20165-1","SUSE-SU-2025:20166-1","SUSE-SU-2025:20248-1","SUSE-SU-2025:20249-1","USN-7276-1","USN-7277-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/53xxx/CVE-2024-53234.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0bc8061ffc733a0a246b8689b2d32a3e9204f43c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/480c6c7b55aeacac800bc2a0d321ff53273045e5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/75a0a6dde803e7a3af700da8da9a361b49f69eba"},{"type":"WEB","url":"https://git.kernel.org/stable/c/daaf68fef4b2ff97928227630021d37b27a96655"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f466641debcbea8bdf78d1b63a6270aadf9301bf"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/53xxx/CVE-2024-53234.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-53234"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"d95ae5e25326092d61613acf98280270dde22778"},{"fixed":"75a0a6dde803e7a3af700da8da9a361b49f69eba"},{"fixed":"f466641debcbea8bdf78d1b63a6270aadf9301bf"},{"fixed":"480c6c7b55aeacac800bc2a0d321ff53273045e5"},{"fixed":"daaf68fef4b2ff97928227630021d37b27a96655"},{"fixed":"0bc8061ffc733a0a246b8689b2d32a3e9204f43c"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"96a85becb811ca2ce21a21721f1544d342ae431e"},{"last_affected":"8c723eef989bc419585237daa467b787ddca5415"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-53234.json"}}],"schema_version":"1.7.5"}