7.8

CVE-2026-80959

dm-pcache: bound the persisted tail-position offset

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0
Version < ffd9a214a94f9928e54856f42b1cc3e33fb10e36
Status affected
Version 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0
Version < 8bf7a06ca3c1611809725f58cfd573f2ffbda75f
Status affected
Version 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0
Version < d1898576090a10d2ac2715218a652e78fb65a6b0
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 0.13% 0.027
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/ffd9a214a94f9928e54856f42b1cc3e33fb10e36
https://git.kernel.org/stable/c/8bf7a06ca3c1611809725f58cfd573f2ffbda75f
https://git.kernel.org/stable/c/d1898576090a10d2ac2715218a652e78fb65a6b0