In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add NULL check for clkmgr and clkmgr->funcs in dcn401inithw This commit addresses a potential null pointer dereference issue in the dcn401_init_hw
function. The issue could occur when dc->clk_mgr
or dc->clk_mgr->funcs
is null. The fix adds a check to ensure dc->clk_mgr
and dc->clk_mgr->funcs
is not null before accessing its functions. This prevents a potential null pointer dereference. Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn401/dcn401hwseq.c:416 dcn401inithw() error: we previously assumed 'dc->clkmgr' could be null (see line 225)
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.11.0-1010.10", "binary_name": "linux-buildinfo-6.11.0-1010-oem" }, { "binary_version": "6.11.0-1010.10", "binary_name": "linux-headers-6.11.0-1010-oem" }, { "binary_version": "6.11.0-1010.10", "binary_name": "linux-image-unsigned-6.11.0-1010-oem" }, { "binary_version": "6.11.0-1010.10", "binary_name": "linux-image-unsigned-6.11.0-1010-oem-dbgsym" }, { "binary_version": "6.11.0-1010.10", "binary_name": "linux-modules-6.11.0-1010-oem" }, { "binary_version": "6.11.0-1010.10", "binary_name": "linux-modules-ipu6-6.11.0-1010-oem" }, { "binary_version": "6.11.0-1010.10", "binary_name": "linux-modules-ipu7-6.11.0-1010-oem" }, { "binary_version": "6.11.0-1010.10", "binary_name": "linux-modules-iwlwifi-6.11.0-1010-oem" }, { "binary_version": "6.11.0-1010.10", "binary_name": "linux-modules-usbio-6.11.0-1010-oem" }, { "binary_version": "6.11.0-1010.10", "binary_name": "linux-modules-vision-6.11.0-1010-oem" }, { "binary_version": "6.11.0-1010.10", "binary_name": "linux-oem-6.11-headers-6.11.0-1010" }, { "binary_version": "6.11.0-1010.10", "binary_name": "linux-oem-6.11-tools-6.11.0-1010" }, { "binary_version": "6.11.0-1010.10", "binary_name": "linux-tools-6.11.0-1010-oem" } ] }