Bug 2356918 (CVE-2025-21990) - CVE-2025-21990 kernel: drm/amdgpu: NULL-check BO's backing store when determining GFX12 PTE flags
Summary: CVE-2025-21990 kernel: drm/amdgpu: NULL-check BO's backing store when determi...
Keywords:
Status: NEW
Alias: CVE-2025-21990
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-04-02 14:02 UTC by OSIDB Bzimport
Modified: 2025-04-09 11:38 UTC (History)
4 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-04-02 14:02:39 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu: NULL-check BO's backing store when determining GFX12 PTE flags

PRT BOs may not have any backing store, so bo->tbo.resource will be
NULL. Check for that before dereferencing.

(cherry picked from commit 3e3fcd29b505cebed659311337ea03b7698767fc)
Comment 1 Michal Findra 2025-04-02 14:44:40 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025040256-CVE-2025-21990-cc2d@gregkh/T
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