{"id":"CVE-2023-54132","summary":"erofs: stop parsing non-compact HEAD index if clusterofs is invalid","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: stop parsing non-compact HEAD index if clusterofs is invalid\n\nSyzbot generated a crafted image [1] with a non-compact HEAD index of\nclusterofs 33024 while valid numbers should be 0 ~ lclustersize-1,\nwhich causes the following unexpected behavior as below:\n\n BUG: unable to handle page fault for address: fffff52101a3fff9\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 23ffed067 P4D 23ffed067 PUD 0\n Oops: 0000 [#1] PREEMPT SMP KASAN\n CPU: 1 PID: 4398 Comm: kworker/u5:1 Not tainted 6.3.0-rc6-syzkaller-g09a9639e56c0 #0\n Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023\n Workqueue: erofs_worker z_erofs_decompressqueue_work\n RIP: 0010:z_erofs_decompress_queue+0xb7e/0x2b40\n ...\n Call Trace:\n  \u003cTASK\u003e\n  z_erofs_decompressqueue_work+0x99/0xe0\n  process_one_work+0x8f6/0x1170\n  worker_thread+0xa63/0x1210\n  kthread+0x270/0x300\n  ret_from_fork+0x1f/0x30\n\nNote that normal images or images using compact indexes are not\nimpacted.  Let's fix this now.\n\n[1] https://lore.kernel.org/r/000000000000ec75b005ee97fbaa@google.com","modified":"2026-04-02T09:45:37.329426Z","published":"2025-12-24T13:06:49.030Z","related":["SUSE-SU-2026:0263-1","SUSE-SU-2026:0317-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54132.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/060fecf1114ff9fcfe87953fe8c4fc5048777160"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7a4579cd6e4936de107c82499c3c9ee11b63401e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7ee7a86e28ce9ead7112286c388df8d254c373c6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/880c79bdb002b9d5b6940e52c2ad3829c2178207"},{"type":"WEB","url":"https://git.kernel.org/stable/c/96a845419b3722869f09883319de4d55c44d9aef"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cc4efd3dd2ac9f89143e5d881609747ecff04164"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f01b2894928affa3339d355608713cf3db8360b8"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54132.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-54132"},{"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":"02827e1796b33f1794966f5c3101f8da2dfa9c1d"},{"fixed":"880c79bdb002b9d5b6940e52c2ad3829c2178207"},{"fixed":"7a4579cd6e4936de107c82499c3c9ee11b63401e"},{"fixed":"060fecf1114ff9fcfe87953fe8c4fc5048777160"},{"fixed":"7ee7a86e28ce9ead7112286c388df8d254c373c6"},{"fixed":"f01b2894928affa3339d355608713cf3db8360b8"},{"fixed":"96a845419b3722869f09883319de4d55c44d9aef"},{"fixed":"cc4efd3dd2ac9f89143e5d881609747ecff04164"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-54132.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.19.0"},{"fixed":"5.4.243"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.180"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.111"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.28"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.2.15"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.3.0"},{"fixed":"6.3.2"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-54132.json"}}],"schema_version":"1.7.5"}