-

CVE-2026-72362

drm/xe/pt: Fix NULL pointer dereference in xe_pt_zap_ptes_entry()

In the Linux kernel, the following vulnerability has been resolved:

drm/xe/pt: Fix NULL pointer dereference in xe_pt_zap_ptes_entry()

The page-table walk framework may pass a NULL *child pointer for
unpopulated entries. xe_pt_zap_ptes_entry() called container_of(*child)
before checking for NULL, then dereferenced the result, causing a crash.

Move the container_of() call after a NULL guard, so the function returns
early instead of proceeding with an invalid pointer. XE_WARN_ON is kept
to help root cause the issue, but we now bail instead of crashing the
driver.

v2: Comment that triggering XE_WARN_ON is unexpected behavior (Matt Brost)

(cherry picked from commit b9297d19d9df5d4b6c994648570c5dcd1cac68ff)
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version dd08ebf6c3525a7ea2186e636df064ea47281987
Version < ff330ce16c846b70164ff0eb544c81219d4c5c08
Status affected
Version dd08ebf6c3525a7ea2186e636df064ea47281987
Version < 78b1074966d290d4517f42bc81e13c4349368d12
Status affected
Version dd08ebf6c3525a7ea2186e636df064ea47281987
Version < d94b9922b2ae5ee6e900f8da0bd537b251c6110c
Status affected
Version dd08ebf6c3525a7ea2186e636df064ea47281987
Version < 3feeb667197bd58a17f4edfdbcad249ffcb3c864
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.8
Status affected
Version 0
Version < 6.8
Status unaffected
Version <= 6.12.*
Version 6.12.97
Status unaffected
Version <= 6.18.*
Version 6.18.40
Status unaffected
Version <= 7.1.*
Version 7.1.5
Status unaffected
Version <= *
Version 7.2
Status unaffected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.2% 0.102
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/ff330ce16c846b70164ff0eb544c81219d4c5c08
https://git.kernel.org/stable/c/78b1074966d290d4517f42bc81e13c4349368d12
https://git.kernel.org/stable/c/d94b9922b2ae5ee6e900f8da0bd537b251c6110c
https://git.kernel.org/stable/c/3feeb667197bd58a17f4edfdbcad249ffcb3c864