CVE-2024-43867: drm/nouveau: prime: fix refcount underflow
In the Linux kernel, the following vulnerability has been resolved:
drm/nouveau: prime: fix refcount underflow
Calling nouveauboref() on a nouveaubo without initializing it (and hence the backing ttmbo) leads to a refcount underflow.
Instead of calling nouveauboref() in the unwind path of drmgemobjectinit(), clean things up manually.
(cherry picked from commit 1b93f3e89d03cfc576636e195466a0d728ad8de5)
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1Fixed in 6.12.27-1 - Upgrade
Upgrade
debian/linux-6.1to a version that resolves this vulnerability.Fixed in 6.1.129-1~deb11u1 - Upgrade
Upgrade
Linux kernel drm/nouveauto a version that resolves this vulnerability.Patch 1b93f3e89d03cfc576636e195466a0d728ad8de5
Event History
Frequently Asked Questions
What is the severity of CVE-2024-43867?
CVE-2024-43867 has a high severity rating due to the potential for a refcount underflow in the Linux kernel.
How do I fix CVE-2024-43867?
You can fix CVE-2024-43867 by upgrading to the latest patched versions of the Linux kernel provided in the advisory.
Which Linux kernel versions are affected by CVE-2024-43867?
CVE-2024-43867 affects Linux kernel versions up to 5.10.223-1 and the specific versions mentioned in the advisory.
What components are impacted by CVE-2024-43867?
CVE-2024-43867 impacts the drm/nouveau subsystem in the Linux kernel.
Is CVE-2024-43867 exploitable?
Yes, CVE-2024-43867 is potentially exploitable, leading to instability or unauthorized access to system resources.