Log in Start free

Vulnerability · Published Apr 1, 2025 · Assigned by Linux

CVE-2025-21956drm/amd/display: Assign normalized_pix_clk when color depth = 14

Medium 5.5

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 85.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.133-1DEBIAN-CVE-2025-21956
Debian:13linux6.12.20-1DEBIAN-CVE-2025-21956
Debian:14linux6.12.20-1DEBIAN-CVE-2025-21956
Ubuntu:22.04:LTSlinux5.15.0-142.152USN-7591-1
Ubuntu:22.04:LTSlinux5.15.0-142.152UBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux6.8.0-84.84UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-aws5.15.0-1086.93UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-aws5.15.0-1086.93USN-7591-4
Ubuntu:24.04:LTSlinux-aws6.8.0-1039.41UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1039.41~22.04.1UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-azure5.15.0-1091.100USN-7597-1
Ubuntu:22.04:LTSlinux-azure5.15.0-1091.100UBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-azure6.8.0-1038.44UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-azure-6.116.11.0-1018.18~24.04.1USN-7628-1
Ubuntu:24.04:LTSlinux-azure-6.116.11.0-1018.18~24.04.1UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1036.42~22.04.1UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1091.100.1UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-azure-nvidia6.8.0-1025.27UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-gcp5.15.0-1085.94UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-gcp5.15.0-1085.94USN-7591-1
Ubuntu:24.04:LTSlinux-gcp6.8.0-1040.42UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-gcp-6.116.11.0-1016.16~24.04.1UBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-gcp-6.116.11.0-1016.16~24.04.1USN-7605-1
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1040.42~22.04.1UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-gke5.15.0-1083.89UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-gke5.15.0-1083.89USN-7591-1
Ubuntu:24.04:LTSlinux-gke6.8.0-1036.40UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1068.76USN-7591-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1068.76UBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1023.25UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-hwe-6.116.11.0-28.28~24.04.1USN-7605-1
Ubuntu:24.04:LTSlinux-hwe-6.116.11.0-28.28~24.04.1UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-85.85~22.04.1UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-ibm5.15.0-1078.81USN-7591-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1078.81UBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-ibm6.8.0-1037.37UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1037.37~22.04.1UBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1081.87UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1081.87USN-7591-5
Ubuntu:22.04:LTSlinux-kvm5.15.0-1082.87UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-kvm5.15.0-1082.87USN-7591-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-142.152UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-142.152USN-7591-1
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-84.84.1UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.116.11.0-1015.16~24.04.2UBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.116.11.0-1015.16~24.04.2USN-7605-2
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-84.84.1~22.04.1UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1080.81UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1080.81USN-7591-1
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1039.42UBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-nvidia-6.116.11.0-1012.12UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1039.42~22.04.1UBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1039.42.1UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1039.39USN-7591-1
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1039.39UBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1010.10UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1028.28UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1028.28USN-7591-1
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-oem-6.116.11.0-1024.24USN-7606-1
Ubuntu:24.04:LTSlinux-oem-6.116.11.0-1024.24UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-oracle5.15.0-1083.89USN-7591-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1083.89UBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-oracle6.8.0-1037.38UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1037.38~22.04.1UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-raspi5.15.0-1080.83UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-raspi5.15.0-1080.83USN-7591-6
Ubuntu:24.04:LTSlinux-raspi6.8.0-1039.43UBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-84.84~22.04.1UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-21956
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1018.19UBUNTU-CVE-2025-21956
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1050.54UBUNTU-CVE-2025-21956

Affected products (as reported)

VendorProductVersions
Linux Linux 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c – before cca3ab74f90176099b6392e8e894b52b27b3d0804562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c – before 0174a2e5770efee9dbd4b58963ed4d939298ff5e4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c – before 0c0016712e5dc23ce4a7e673cbebc24a535d8c8a4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c – before dc831b38680c47d07e425871a9852109183895cf4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c – before a8f77e1658d78e4a8bb227a83bcee67de97f76344562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c – before 04f90b505ad3a6eed474bbaa03167095fef5203a4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c – before 27df30106690969f7d63604f0d49ed8e9bffa2cb4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c – before 79e31396fdd7037c503e6add15af7cb00633ea92
Linux Linux 4.15

References