CVE-2024-43867
drm/nouveau: prime: fix refcount underflow
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Description
In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: prime: fix refcount underflow Calling nouveau_bo_ref() on a nouveau_bo without initializing it (and hence the backing ttm_bo) leads to a refcount underflow. Instead of calling nouveau_bo_ref() in the unwind path of drm_gem_object_init(), clean things up manually. (cherry picked from commit 1b93f3e89d03cfc576636e195466a0d728ad8de5)
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/16998763c62bb465ebc409d0373b9cdcef1a61a6
- https://git.kernel.org/stable/c/2a1b327d57a8ac080977633a18999f032d7e9e3f
- https://git.kernel.org/stable/c/3bcb8bba72ce89667fa863054956267c450c47ef
- https://git.kernel.org/stable/c/906372e753c5027a1dc88743843b6aa2ad1aaecf
- https://git.kernel.org/stable/c/a9bf3efc33f1fbf88787a277f7349459283c9b95
References (9)
SSVC — Action Prioritization
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
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