CVE-2024-43867 Details
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)
A refcount underflow vulnerability has been identified in the Linux kernel's Nouveau Direct Rendering Manager (DRM) Prime handling. This issue arises when the function 'nouveau_bo_ref()' is called on a 'nouveau_bo' object that has not been properly initialized, leading to a reference count underflow. The vulnerability is present in the Linux kernel stable tree, specifically in versions 5.10.224 through 5.10.226, as well as in the 6.1 backport for Debian 11. The problem has been addressed by modifying the object initialization process to prevent the underflow.
Users can upgrade to the patched versions of the Linux kernel available in the Debian LTS repository. For systems currently using the 6.1 kernel, the update to version 6.1.119-1~deb11u1 will address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Sep 10, 2024References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-191 | Integer Underflow (Wrap or Wraparound) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 3.9, < 5.4.282 >= 5.5, < 5.10.224 >= 5.11, < 5.15.165 >= 5.16, < 6.1.104 >= 6.2, < 6.6.45 >= 6.7, < 6.10.4 6.11 rc1 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Nov 3, 2025 | CVE Modified | CVE |
| Sep 26, 2025 | Initial Analysis | [email protected] |
| Aug 21, 2024 | New CVE Received | kernel.org |