CVE-2024-49908

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/amd/display: Add null check for &amp;#39;afb&amp;#39; in amdgpu_dm_update_cursor (v2)<br /> <br /> This commit adds a null check for the &amp;#39;afb&amp;#39; variable in the<br /> amdgpu_dm_update_cursor function. Previously, &amp;#39;afb&amp;#39; was assumed to be<br /> null at line 8388, but was used later in the code without a null check.<br /> This could potentially lead to a null pointer dereference.<br /> <br /> Changes since v1:<br /> - Moved the null check for &amp;#39;afb&amp;#39; to the line where &amp;#39;afb&amp;#39; is used. (Alex)<br /> <br /> Fixes the below:<br /> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:8433 amdgpu_dm_update_cursor()<br /> error: we previously assumed &amp;#39;afb&amp;#39; could be null (see line 8388)