What’s Vulnerable › Vulnerabilities

CVE-2024-49921: drm/amd/display: Check null pointers before used

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-10-21 · updated 2026-10-30
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check null pointers before used [WHAT & HOW] Poniters, such as dc->clk_mgr, are null checked previously in the same function, so Coverity warns "implies that "dc->clk_mgr" might be null". As a result, these pointers need to be checked when used again. This fixes 10 FORWARD_NULL issues reported by Coverity.

Affected products

• Linux kernel: before 6.11.3 — fixed in 6.11.3
• Linux: 4.15 — fixed in 6.12

How to fix

Upgrade to a fixed version: Linux kernel 6.11.3; Linux 6.12. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/348f8668dfa77294a277946cb0231c29b5474e1d
• https://git.kernel.org/stable/c/5b35bf1a82eb29841b67ff5643ba83762250fc24
• https://git.kernel.org/stable/c/692e9a20018da7aa225d8dced44803f9852aca81
• https://git.kernel.org/stable/c/be1fb44389ca3038ad2430dac4234669bc177ee3

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