CVE-2024-53234
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-53234
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-53234.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-53234
- Downstream
- Related
- Published
- 2024-12-27T14:15:31Z
- Modified
- 2025-08-09T20:01:27Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
erofs: handle NONHEAD !delta[1] lclusters gracefully
syzbot reported a WARNING in iomapiterdone: iomapfiemap+0x73b/0x9b0 fs/iomap/fiemap.c:80 ioctlfiemap fs/ioctl.c:220 [inline]
Generally, NONHEAD lclusters won't have delta[1]==0, except for crafted images and filesystems created by pre-1.0 mkfs versions.
Previously, it would immediately bail out if delta[1]==0, which led to inadequate decompressed lengths (thus FIEMAP is impacted). Treat it as delta[1]=1 to work around these legacy mkfs versions.
lclusterbits > 14is illegal for compact indexes, error out too. - References
-
- https://git.kernel.org/stable/c/0bc8061ffc733a0a246b8689b2d32a3e9204f43c
- https://git.kernel.org/stable/c/480c6c7b55aeacac800bc2a0d321ff53273045e5
- https://git.kernel.org/stable/c/75a0a6dde803e7a3af700da8da9a361b49f69eba
- https://git.kernel.org/stable/c/daaf68fef4b2ff97928227630021d37b27a96655
- https://git.kernel.org/stable/c/f466641debcbea8bdf78d1b63a6270aadf9301bf