Bug 2420421 (CVE-2025-40339) - CVE-2025-40339 kernel: drm/amdgpu: fix nullptr err of vm_handle_moved
Summary: CVE-2025-40339 kernel: drm/amdgpu: fix nullptr err of vm_handle_moved
Keywords:
Status: NEW
Alias: CVE-2025-40339
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: 2025-12-09 05:02 UTC by OSIDB Bzimport
Modified: 2025-12-09 23:10 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2025-12-09 05:02:15 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu: fix nullptr err of vm_handle_moved

If a amdgpu_bo_va is fpriv->prt_va, the bo of this one is always NULL.
So, such kind of amdgpu_bo_va should be updated separately before
amdgpu_vm_handle_moved.
Comment 1 Alexander B 2025-12-09 13:08:51 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025120911-CVE-2025-40339-82ee@gregkh/T
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