CVE-2024-40926

drm/nouveau: don't attempt to schedule hpd_work on headless cards

MEDIUM
5.5
CVSS Score
Published: July 12, 2024 at 12:25 PM UTC
Updated: June 17, 2026 at 07:46 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: don't attempt to schedule hpd_work on headless cards If the card doesn't have display hardware, hpd_work and hpd_lock are left uninitialized which causes BUG when attempting to schedule hpd_work on runtime PM resume. Fix it by adding headless flag to DRM and skip any hpd if it's set.

Affected

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

6.7 ≤ v < 6.106.7 ≤ v < 6.9.66.10 rc16.10 rc26.10 rc3ae1aadb1eb8d3cbc52e42bee71d67bd4a71f9f07
Vendor states this is fixed in 227349998e5740f14d531b0f0d704e66b1ed3c2f (fixed)
Vendor states this is fixed in b96a225377b6602299a03d2ce3c289b68cd41bb7 (fixed)
Vendor states this is fixed in 6.10 (unaffected)
Vendor states this is fixed in 6.7 (unaffected)
Vendor states this is fixed in 6.9.6 (unaffected)

Remediation

No guide yet

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

References (2)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/227349998e5740f14d531b0f0d704e66b1ed3c2f
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b96a225377b6602299a03d2ce3c289b68cd41bb7

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

StatusANALYZED
CWE
CWE-908

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