CVE-2026-80957Medium· 5.5▾ SunlitIn 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 forge…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.2%
— → 4.4
none → medium
— → 5.5
none → medium
0.2% → 0.2%
Last analysed / modified upstream
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.
Linux >= 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 < 663ee2f3824a505b983162de44134e789f8230daLinux >= 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 < 5311dfc5cd70edccd110257e3f30b2c1dcd3768dLinux >= 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 < 16c3b3a326e70f246a605b3dc27b7f83ba4743e3Linux 6.18Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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