CVE-2025-21956

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

MEDIUM

5.5

CVSS Score

Published: April 1, 2025 at 03:46 PM UTC

Updated: June 17, 2026 at 08:44 AM UTC

1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

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: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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

4.15 ≤ v < 5.10.2364.15 ≤ v < 5.15.1804.15 ≤ v < 5.4.2924.15 ≤ v < 6.1.1324.15 ≤ v < 6.12.204.15 ≤ v < 6.13.84.15 ≤ v < 6.144.15 ≤ v < 6.6.845.11 ≤ v < 5.15.1805.16 ≤ v < 6.1.1325.5 ≤ v < 5.10.2366.13 ≤ v < 6.13.86.2 ≤ v < 6.6.846.7 ≤ v < 6.12.204.154562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c6.14 rc1 6.14 rc2 6.14 rc3 6.14 rc4 6.14 rc5 6.14 rc6

Vendor states this is fixed in 0174a2e5770efee9dbd4b58963ed4d939298ff5e (fixed)

Vendor states this is fixed in 04f90b505ad3a6eed474bbaa03167095fef5203a (fixed)

Vendor states this is fixed in 0c0016712e5dc23ce4a7e673cbebc24a535d8c8a (fixed)

Vendor states this is fixed in 27df30106690969f7d63604f0d49ed8e9bffa2cb (fixed)

Vendor states this is fixed in 79e31396fdd7037c503e6add15af7cb00633ea92 (fixed)

Vendor states this is fixed in a8f77e1658d78e4a8bb227a83bcee67de97f7634 (fixed)

Vendor states this is fixed in cca3ab74f90176099b6392e8e894b52b27b3d080 (fixed)

Vendor states this is fixed in dc831b38680c47d07e425871a9852109183895cf (fixed)

Vendor states this is fixed in 4.15 (unaffected)

Vendor states this is fixed in 5.10.236 (unaffected)

Vendor states this is fixed in 5.15.180 (unaffected)

Vendor states this is fixed in 5.4.292 (unaffected)