CVE-2025-21956

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < cca3ab74f90176099b6392e8e894b52b27b3d080affected
LinuxLinux4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < 0174a2e5770efee9dbd4b58963ed4d939298ff5eaffected
LinuxLinux4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < 0c0016712e5dc23ce4a7e673cbebc24a535d8c8aaffected
LinuxLinux4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < dc831b38680c47d07e425871a9852109183895cfaffected
LinuxLinux4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < a8f77e1658d78e4a8bb227a83bcee67de97f7634affected
LinuxLinux4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < 04f90b505ad3a6eed474bbaa03167095fef5203aaffected
LinuxLinux4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < 27df30106690969f7d63604f0d49ed8e9bffa2cbaffected
LinuxLinux4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c < 79e31396fdd7037c503e6add15af7cb00633ea92affected
LinuxLinux4.15affected
LinuxLinux0 < 4.15unaffected
LinuxLinux5.4.292 <= 5.4.*unaffected
LinuxLinux5.10.236 <= 5.10.*unaffected
LinuxLinux5.15.180 <= 5.15.*unaffected
LinuxLinux6.1.132 <= 6.1.*unaffected
LinuxLinux6.6.84 <= 6.6.*unaffected
LinuxLinux6.12.20 <= 6.12.*unaffected
LinuxLinux6.13.8 <= 6.13.*unaffected
LinuxLinux6.14 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

References