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CVE-2026-80957

dm-pcache: detect a cycle in the last-kset chain during replay

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0
Version < 663ee2f3824a505b983162de44134e789f8230da
Status affected
Version 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0
Version < 5311dfc5cd70edccd110257e3f30b2c1dcd3768d
Status affected
Version 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0
Version < 16c3b3a326e70f246a605b3dc27b7f83ba4743e3
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.18
Status affected
Version 0
Version < 6.18
Status unaffected
Version <= 6.18.*
Version 6.18.50
Status unaffected
Version <= 7.2.*
Version 7.2.4
Status unaffected
Version <= *
Version 7.3-rc1
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.061
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/663ee2f3824a505b983162de44134e789f8230da
https://git.kernel.org/stable/c/5311dfc5cd70edccd110257e3f30b2c1dcd3768d
https://git.kernel.org/stable/c/16c3b3a326e70f246a605b3dc27b7f83ba4743e3