CVE Published: 01/05/2024 |
CVE Updated: 05/11/2024 |
CVE Year: 2024 Source: Linux |
Vendor: Linux |
Product: Linux Status : PUBLISHED
CVE-2024-27041 Description
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: fix NULL checks for adev->dm.dc in amdgpu_dm_fini()
Since \'adev->dm.dc\' in amdgpu_dm_fini() might turn out to be NULL
before the call to dc_enable_dmub_notifications(), check
beforehand to ensure there will not be a possible NULL-ptr-deref
there.
Also, since commit 1e88eb1b2c25 ("drm/amd/display: Drop
CONFIG_DRM_AMD_DC_HDCP") there are two separate checks for NULL in
\'adev->dm.dc\' before dc_deinit_callbacks() and dc_dmub_srv_destroy().
Clean up by combining them all under one \'if\'.
Found by Linux Verification Center (linuxtesting.org) with static
analysis tool SVACE.