Detections
Analytics
CVE-2026-80959
high
Description
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/ffd9a214a94f9928e54856f42b1cc3e33fb10e36
https://git.kernel.org/stable/c/d1898576090a10d2ac2715218a652e78fb65a6b0
https://git.kernel.org/stable/c/8bf7a06ca3c1611809725f58cfd573f2ffbda75f