CVE-2024-49905

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < bd0e24e5e608ccb9fdda300bb974496d6d8cf57daffected
LinuxLinux4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < 75839e2365b666ff4e1b9047e442cab138eac4f6affected
LinuxLinux4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < 9132882eaae4d21d2fc5843b3308379a481ebdf0affected
LinuxLinux4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < e4e26cbe34d7c1c1db5fb7b3101573c29866439faffected
LinuxLinux4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < cd9e9e0852d501f169aa3bb34e4b413d2eb48c37affected
LinuxLinux4.15affected
LinuxLinux0 < 4.15unaffected
LinuxLinux6.1.113 <= 6.1.*unaffected
LinuxLinux6.6.55 <= 6.6.*unaffected
LinuxLinux6.10.14 <= 6.10.*unaffected
LinuxLinux6.11.3 <= 6.11.*unaffected
LinuxLinux6.12 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References