What’s Vulnerable › Vulnerabilities

CVE-2022-50535: drm/amd/display: Fix potential null-deref in dm_resume

• 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: 2025-10-07 · updated 2026-08-15
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix potential null-deref in dm_resume [Why] Fixing smatch error: dm_resume() error: we previously assumed 'aconnector->dc_link' could be null [How] Check if dc_link null at the beginning of the loop, so further checks can be dropped.

Affected products

• Linux kernel: from 4.15 before 4.19.276; from 4.20 before 5.4.235; from 5.5 before 5.10.173; from 5.11 before 5.15.99; from 5.16 before 6.1.16; from 6.2 before 6.2.3 — fixed in 4.19.276, 5.10.173, 5.15.99, 5.4.235, 6.1.16, 6.2.3

How to fix

Upgrade to a fixed version: Linux kernel 4.19.276, 5.10.173, 5.15.99, 5.4.235. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/00b655fa96b4e941351cc4bf5ca755a65ae94a8e
• https://git.kernel.org/stable/c/7a7175a2cd84b7874bebbf8e59f134557a34161b
• https://git.kernel.org/stable/c/8e365f1bd672cc9320a936f6ae6f8087aa40e9bc
• https://git.kernel.org/stable/c/9f73793b81637c60ccc83cc508645310b8ab7d80
• https://git.kernel.org/stable/c/bb9a5562beb982aa5ebb73c521c49596ff8b8030
• https://git.kernel.org/stable/c/d236103782de25736996a45bd36ac2a89bdc93c6
• https://git.kernel.org/stable/c/fd79b61af2782f8875c78f50cdb8630ec43e2990

Get alerted when CVE-2022-50535 or the next vulnerability affects your stack