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CVE-2026-68303

drm/vc4: hvs/v3d: Fix null dereference in unbind

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

drm/vc4: hvs/v3d: Fix null dereference in unbind

The hvs and v3d drivers use dev_get_drvdata(master) in their unbind
functions. Since the vc4-drm gets removed before its dependent drivers
(vc4_hvs/vc4_v3d) the vc4_hvs_unbind/vc4_v3d_unbind functions try to
get drvdata of its master and fails with a null dereference error.

Use the data pointer passed to the unbind functions directly instead of
dev_get_drvdata(master). This avoids using potentially freed memory.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version c8b75bca92cbf064b9fa125fc74a85994452e935
Version < 8f62aae059e06746a18a00af27179c3c0f17f4c7
Status affected
Version c8b75bca92cbf064b9fa125fc74a85994452e935
Version < 708688ec31ac6b35103ba364dc300a09930079d4
Status affected
Version c8b75bca92cbf064b9fa125fc74a85994452e935
Version < 261f0a3f0ac03248284f5116d3258f89c9642215
Status affected
Version c8b75bca92cbf064b9fa125fc74a85994452e935
Version < 7dc3680b7ffe01add3e9299fde8471d2dd53a8ae
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 4.4
Status affected
Version 0
Version < 4.4
Status unaffected
Version <= 6.12.*
Version 6.12.111
Status unaffected
Version <= 6.18.*
Version 6.18.53
Status unaffected
Version <= 7.1.*
Version 7.1.6
Status unaffected
Version <= *
Version 7.2
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 0.19% 0.088
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/261f0a3f0ac03248284f5116d3258f89c9642215
https://git.kernel.org/stable/c/7dc3680b7ffe01add3e9299fde8471d2dd53a8ae
https://git.kernel.org/stable/c/708688ec31ac6b35103ba364dc300a09930079d4
https://git.kernel.org/stable/c/8f62aae059e06746a18a00af27179c3c0f17f4c7