CVE-2025-21956

drm/amd/display: Assign normalized_pix_clk when color depth = 14

EPSS 0.2%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

01 Apr 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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:3397 calculate_phy_pix_clks+0xef/0x100 [amdgpu]" occurs because the display_color_depth == COLOR_DEPTH_141414 is not handled. This is observed 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)

Affected products

Linux · Linux

References

https://git.kernel.org/stable/c/0174a2e5770efee9dbd4b58963ed4d939298ff5e https://git.kernel.org/stable/c/04f90b505ad3a6eed474bbaa03167095fef5203a https://git.kernel.org/stable/c/0c0016712e5dc23ce4a7e673cbebc24a535d8c8a https://git.kernel.org/stable/c/27df30106690969f7d63604f0d49ed8e9bffa2cb https://git.kernel.org/stable/c/79e31396fdd7037c503e6add15af7cb00633ea92 https://git.kernel.org/stable/c/a8f77e1658d78e4a8bb227a83bcee67de97f7634 https://git.kernel.org/stable/c/cca3ab74f90176099b6392e8e894b52b27b3d080 https://git.kernel.org/stable/c/dc831b38680c47d07e425871a9852109183895cf https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html