PT-2026-90089 · Linux · Linux
CVE-2026-80959
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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: bound the persisted tail-position offset
cache pos decode() takes the persisted key tail and dirty tail seg off from
the cache device and addresses within the segment with it. A seg off at or
past the segment data size, controllable by whoever supplies the device
(CAP SYS ADMIN), reads past the segment data.
Reject a decoded seg off that is not below the segment data size.
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Related Identifiers
Affected Products
Linux