What’s Vulnerable › Vulnerabilities

CVE-2024-49920: drm/amd/display: Check null pointers before multiple uses

• 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 multiple uses [WHAT & HOW] Poniters, such as stream_enc and dc->bw_vbios, are null checked previously in the same function, so Coverity warns "implies that stream_enc and dc->bw_vbios might be null". They are used multiple times in the subsequent code and need to be checked. 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/26787fb6c2b2ee0d1a7e1574b36f4711ae40fe27
• https://git.kernel.org/stable/c/4f51f6d23c5856f105110531f81d84e78e462005
• https://git.kernel.org/stable/c/7dc67992b35bc11895149b4261c4ad745312a18d
• https://git.kernel.org/stable/c/fdd5ecbbff751c3b9061d8ebb08e5c96119915b4

Get alerted when CVE-2024-49920 or the next vulnerability affects your stack