CVE-2026-80532xfs: fix another iunlink infinite loop bug in online fsck
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: xfs: fix another iunlink infinite loop bug in online fsck xrep_iunlink_resolve_bucket is supposed to reconstruct as much of the incore prev and next unlinked list pointers based on what it finds on disk and in memory before we move on to relinking the truly lost inodes back into the unlinked list. However, it's still vulnerable to infinite loops that come in via the next_unlinked pointers. Fix this problem by remembering which inodes we've already seen and checking new agino pointers against that. If a bit is already set, either this is a loop or the inode has nonzero link count. We'll deal with the second case in a subsequent patch.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 26, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from ab97f4b1c030750f2475bf4da8a9554d02206640 before 24aec8c88539a382355761a9b924046885b6be40; from ab97f4b1c030750f2475bf4da8a9554d02206640 before b6baf0db357fb84f3f3cfd33383a00de71a5a1c3; from ab97f4b1c030750f2475bf4da8a9554d02206640 before 23690064f235a88a00c04f2e49f36bfb54ae560d; from ab97f4b1c030750f2475bf4da8a9554d02206640 before 6d67c6b99f1fc07c64b97fcbc974c6f1ada7f622 | CNA record |
References
- https://git.kernel.org/stable/c/24aec8c88539a382355761a9b924046885b6be40
- https://git.kernel.org/stable/c/b6baf0db357fb84f3f3cfd33383a00de71a5a1c3
- https://git.kernel.org/stable/c/23690064f235a88a00c04f2e49f36bfb54ae560d
- https://git.kernel.org/stable/c/6d67c6b99f1fc07c64b97fcbc974c6f1ada7f622
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.