CVE-2026-80957dm-pcache: detect a cycle in the last-kset chain during replay
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: dm-pcache: detect a cycle in the last-kset chain during replay cache_replay() follows the on-media last-kset chain by next_cache_seg_id with no cond_resched(). A forged chain that points back into a segment it has already visited makes the replay loop follow it forever. Cap the last-kset hops at cache->n_segs; a valid chain visits each segment at most once.
- 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
- Sep 11, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 before 663ee2f3824a505b983162de44134e789f8230da; from 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 before 5311dfc5cd70edccd110257e3f30b2c1dcd3768d; from 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 before 16c3b3a326e70f246a605b3dc27b7f83ba4743e3 | CNA record |
References
- https://git.kernel.org/stable/c/663ee2f3824a505b983162de44134e789f8230da
- https://git.kernel.org/stable/c/5311dfc5cd70edccd110257e3f30b2c1dcd3768d
- https://git.kernel.org/stable/c/16c3b3a326e70f246a605b3dc27b7f83ba4743e3
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.