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CVE-2024-49905

drm/amd/display: Add null check for 'afb' in amdgpu_dm_plane_handle_cursor_update (v2) PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add null check for 'afb' in amdgpu_dm_plane_handle_cursor_update (v2) This commit adds a null check for the 'afb' variable in the amdgpu_dm_plane_handle_cursor_update function. Previously, 'afb' was assumed to be null, but was used later in the code without a null check. This could potentially lead to a null pointer dereference. Changes since v1: - Moved the null check for 'afb' to the line where 'afb' is used. (Alex) Fixes the below: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_plane.c:1298 amdgpu_dm_plane_handle_cursor_update() error: we previously assumed 'afb' could be null (see line 1252)

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before bd0e24e5e608ccb9fdda300bb974496d6d8cf57d; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before 75839e2365b666ff4e1b9047e442cab138eac4f6; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before 9132882eaae4d21d2fc5843b3308379a481ebdf0; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before e4e26cbe34d7c1c1db5fb7b3101573c29866439f; affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c before cd9e9e0852d501f169aa3bb34e4b413d2eb48c37
Linux / Linuxaffected 4.15; unaffected 0 before 4.15; unaffected 6.1.113 through 6.1.*; unaffected 6.6.55 through 6.6.*; unaffected 6.10.14 through 6.10.*; unaffected 6.11.3 through 6.11.*; unaffected 6.12 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

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No references supplied.

CVE

No English description supplied.