Bug 2422701 (CVE-2025-68190) - CVE-2025-68190 kernel: drm/amdgpu/atom: Check kcalloc() for WS buffer in amdgpu_atom_execute_table_locked()
Summary: CVE-2025-68190 kernel: drm/amdgpu/atom: Check kcalloc() for WS buffer in amdg...
Keywords:
Status: NEW
Alias: CVE-2025-68190
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-16 14:04 UTC by OSIDB Bzimport
Modified: 2026-06-29 20:16 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-12-16 14:04:53 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu/atom: Check kcalloc() for WS buffer in amdgpu_atom_execute_table_locked()

kcalloc() may fail. When WS is non-zero and allocation fails, ectx.ws
remains NULL while ectx.ws_size is set, leading to a potential NULL
pointer dereference in atom_get_src_int() when accessing WS entries.

Return -ENOMEM on allocation failure to avoid the NULL dereference.
Comment 1 Alexander B 2025-12-17 01:58:07 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025121634-CVE-2025-68190-e648@gregkh/T
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