linux: In the Linux kernel, the following vulnerability has been resolved: dm-pcache: detect a cycle in the last-kset chain...
CVE-2026-80957 is fixed in linux on 1 platform by DEBIAN-CVE-2026-80957 (version 7.2.6-1), released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 14 | 7.2.6-1 | DEBIAN-CVE-2026-80957 | Sep 23, 2026 |
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