CVE-2025-40233 — Linux vulnerability
55 documents7 sources
Severity
7.8HIGHOSV
OSV5.5OSV3.2
No vectorEPSS
0.1%
top 78.94%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedDec 4
Latest updateApr 13
Description
In the Linux kernel, the following vulnerability has been resolved:
ocfs2: clear extent cache after moving/defragmenting extents
The extent map cache can become stale when extents are moved or
defragmented, causing subsequent operations to see outdated extent flags.
This triggers a BUG_ON in ocfs2_refcount_cal_cow_clusters().
The problem occurs when:
1. copy_file_range() creates a reflinked extent with OCFS2_EXT_REFCOUNTED
2. ioctl(FITRIM) triggers ocfs2_move_extents()
3. __ocfs2_move_extents…
Affected Packages6 packages
▶CVEListV5linux/linux53069d4e76954e2e63c1b3c501051c6fbcf7298c — 93166bc53c0e3587058327a4121daea34b4fecd5+8