CVE-2022-49232

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/amd/display: Fix a NULL pointer dereference in amdgpu_dm_connector_add_common_modes()<br /> <br /> In amdgpu_dm_connector_add_common_modes(), amdgpu_dm_create_common_mode()<br /> is assigned to mode and is passed to drm_mode_probed_add() directly after<br /> that. drm_mode_probed_add() passes &amp;mode-&gt;head to list_add_tail(), and<br /> there is a dereference of it in list_add_tail() without recoveries, which<br /> could lead to NULL pointer dereference on failure of<br /> amdgpu_dm_create_common_mode().<br /> <br /> Fix this by adding a NULL check of mode.<br /> <br /> This bug was found by a static analyzer.<br /> <br /> Builds with &amp;#39;make allyesconfig&amp;#39; show no new warnings,<br /> and our static analyzer no longer warns about this code.