What’s Vulnerable › Vulnerabilities

CVE-2025-21819: Revert "drm/amd/display: Use HW lock mgr for PSR1"

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-27 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: Revert "drm/amd/display: Use HW lock mgr for PSR1" This reverts commit a2b5a9956269 ("drm/amd/display: Use HW lock mgr for PSR1") Because it may cause system hang while connect with two edp panel.

Affected products

• Linux kernel: from 6.6.75 before 6.6.78; from 6.12.12 before 6.12.14; from 6.13.1 before 6.13.3; 6.1.128, 6.13, 6.14-rc1 — fixed in 6.12.14, 6.13.3, 6.6.78

How to fix

Upgrade to a fixed version: Linux kernel 6.12.14, 6.13.3, 6.6.78. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/915697c2e69ac8d14dad498e6d6f43dbb7de3787
• https://git.kernel.org/stable/c/95c75578c420110c43791295985abb961d6dc033
• https://git.kernel.org/stable/c/a978864653e45d2671f99b09afcc1110e45d3dd9
• https://git.kernel.org/stable/c/dcc3f2c06d80da39eee742b51ddf0781affb260c
• https://git.kernel.org/stable/c/f245b400a223a71d6d5f4c72a2cb9b573a7fc2b6
• https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html

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