CVE-2025-21956

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Source
https://cve.org/CVERecord?id=CVE-2025-21956
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21956.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-21956
Downstream
Related
Published
2025-04-01T15:46:56.219Z
Modified
2026-03-11T07:52:37.137637Z
Summary
drm/amd/display: Assign normalized_pix_clk when color depth = 14
Details

In the Linux kernel, the following vulnerability has been resolved:

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

[WHY & HOW] A warning message "WARNING: CPU: 4 PID: 459 at ... /dcresource.c:3397 calculatephypixclks+0xef/0x100 [amdgpu]" occurs because the displaycolordepth == COLORDEPTH141414 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 getnormpix_clk.

(cherry picked from commit 274a87eb389f58eddcbc5659ab0b180b37e92775)

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21956.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c
Fixed
cca3ab74f90176099b6392e8e894b52b27b3d080
Fixed
0174a2e5770efee9dbd4b58963ed4d939298ff5e
Fixed
0c0016712e5dc23ce4a7e673cbebc24a535d8c8a
Fixed
dc831b38680c47d07e425871a9852109183895cf
Fixed
a8f77e1658d78e4a8bb227a83bcee67de97f7634
Fixed
04f90b505ad3a6eed474bbaa03167095fef5203a
Fixed
27df30106690969f7d63604f0d49ed8e9bffa2cb
Fixed
79e31396fdd7037c503e6add15af7cb00633ea92

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21956.json"