CVE-2024-49921

drm/amd/display: Check null pointers before used

MEDIUM
5.5
CVSS Score
Published: October 21, 2024 at 06:01 PM UTC
Updated: October 30, 2026 at 01:17 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 6.11.34.154562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c
Vendor states this is fixed in 5b35bf1a82eb29841b67ff5643ba83762250fc24 (fixed)
Vendor states this is fixed in be1fb44389ca3038ad2430dac4234669bc177ee3 (fixed)
Vendor states this is fixed in 4.15 (unaffected)
Vendor states this is fixed in 6.11.3 (unaffected)
Vendor states this is fixed in 6.12 (unaffected)
Vendor states this is fixed in 6.6.160 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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