Bug 2395250 (CVE-2023-53248) - CVE-2023-53248 kernel: drm/amdgpu: install stub fence into potential unused fence pointers
Summary: CVE-2023-53248 kernel: drm/amdgpu: install stub fence into potential unused f...
Keywords:
Status: NEW
Alias: CVE-2023-53248
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-09-15 15:03 UTC by OSIDB Bzimport
Modified: 2025-10-06 08:48 UTC (History)
0 users

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Description OSIDB Bzimport 2025-09-15 15:03:16 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu: install stub fence into potential unused fence pointers

When using cpu to update page tables, vm update fences are unused.
Install stub fence into these fence pointers instead of NULL
to avoid NULL dereference when calling dma_fence_wait() on them.
Comment 1 Keith Grant 2025-09-15 18:23:08 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091501-CVE-2023-53248-aa39@gregkh/T
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