UNKNOWN NVD
CVE-2026-80959
In the Linux kernel, the following vulnerability has been resolved: dm-pcache: bound the persisted tail-position offset cache_pos_decode() takes the persisted
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.
References
- https://git.kernel.org/stable/c/8bf7a06ca3c1611809725f58cfd573f2ffbda75f
- https://git.kernel.org/stable/c/d1898576090a10d2ac2715218a652e78fb65a6b0
- https://git.kernel.org/stable/c/ffd9a214a94f9928e54856f42b1cc3e33fb10e36
This unknown severity vulnerability was published on 2026-09-11 via NVD.
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