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THREATINT
PUBLISHED

CVE-2024-49905

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



AssignerLinux
Reserved2024-10-21
Published2024-10-21
Updated2024-10-22

Description

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)

Product status

Default status
unaffected

1da177e4c3f4 before bd0e24e5e608
affected

1da177e4c3f4 before 75839e2365b6
affected

1da177e4c3f4 before 9132882eaae4
affected

1da177e4c3f4 before e4e26cbe34d7
affected

1da177e4c3f4 before cd9e9e0852d5
affected

Default status
affected

6.1.113
unaffected

6.6.55
unaffected

6.10.14
unaffected

6.11.3
unaffected

6.12-rc1
unaffected

References

https://git.kernel.org/stable/c/bd0e24e5e608ccb9fdda300bb974496d6d8cf57d

https://git.kernel.org/stable/c/75839e2365b666ff4e1b9047e442cab138eac4f6

https://git.kernel.org/stable/c/9132882eaae4d21d2fc5843b3308379a481ebdf0

https://git.kernel.org/stable/c/e4e26cbe34d7c1c1db5fb7b3101573c29866439f

https://git.kernel.org/stable/c/cd9e9e0852d501f169aa3bb34e4b413d2eb48c37

cve.org CVE-2024-49905

nvd.nist.gov CVE-2024-49905

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