cve/2025/CVE-2025-21956.md
2025-09-29 21:09:30 +02:00

1.2 KiB

CVE-2025-21956

Description

In the Linux kernel, the following vulnerability has been resolved:drm/amd/display: Assign normalized_pix_clk when color depth = 14[WHY & HOW]A warning message "WARNING: CPU: 4 PID: 459 at ... /dc_resource.c:3397calculate_phy_pix_clks+0xef/0x100 [amdgpu]" occurs because thedisplay_color_depth == COLOR_DEPTH_141414 is not handled. This isobserved in Radeon RX 6600 XT.It is fixed by assigning pix_clk * (14 * 3) / 24 - same as the rests.Also fixes the indentation in get_norm_pix_clk.(cherry picked from commit 274a87eb389f58eddcbc5659ab0b180b37e92775)

POC

Reference

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