PT-2026-90087 · Linux · Linux
CVE-2026-80957
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Published
2026-09-11
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Updated
2026-09-11
None
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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.
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Related Identifiers
Affected Products
Linux