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Vulnerability Change Records for CVE-2024-49916

Change History

New CVE Received from kernel.org 10/21/2024 2:15:13 PM

Action Type Old Value New Value
Added Description

								
							
							
						
In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Add NULL check for clk_mgr and clk_mgr->funcs in dcn401_init_hw

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/dcn401_hwseq.c:416 dcn401_init_hw() error: we previously assumed 'dc->clk_mgr' could be null (see line 225)
Added Reference

								
							
							
						
kernel.org https://git.kernel.org/stable/c/4b6377f0e96085cbec96eb7f0b282430ccdd3d75 [No types assigned]
Added Reference

								
							
							
						
kernel.org https://git.kernel.org/stable/c/ac1c41e318074d8a9ea925787e366be15d7645e8 [No types assigned]