Null Pointer Dereference in AMD GPU Display Driver

CVE-2023-53498

What is CVE-2023-53498?

A vulnerability has been identified in the AMD GPU Display Driver within the Linux kernel. This issue arises from a potential null pointer dereference when accessing the adev->dm.dc pointer in the amdgpu_dm_fini() function. If this pointer is NULL, it can lead to unexpected behaviors and potential crashes without proper null checks in place. The problem was discovered during verification efforts by the Linux Verification Center, prompting the need for a safety check prior to invoking the dc_dmub_srv_destroy() function. Applying the latest patches is essential to mitigate this risk.

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