CVE-2024-43866: net/mlx5: Always drain health in shutdown callback
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5: Always drain health in shutdown callback
There is no point in recovery during device shutdown. if health work started need to wait for it to avoid races and NULL pointer access.
Hence, drain health WQ on shutdown callback.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed 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 - Compensating control
In the net/mlx5 shutdown callback, always drain the health work queue; if health work has started, wait for it to complete to avoid races and NULL pointer access.
Event History
Frequently Asked Questions
What is the severity of CVE-2024-43866?
CVE-2024-43866 is considered a moderate severity vulnerability in the Linux kernel.
How do I fix CVE-2024-43866?
To fix CVE-2024-43866, update to the latest version of the Linux kernel, specifically versions 6.1.123-1 or 6.1.119-1.
Which Linux kernel versions are affected by CVE-2024-43866?
CVE-2024-43866 affects Linux kernel versions from 4.13.16 up to 6.10.4, excluding the patched versions.
What components are impacted by CVE-2024-43866?
CVE-2024-43866 specifically impacts the net/mlx5 component of the Linux kernel.
Is CVE-2024-43866 exploitable in production environments?
Yes, CVE-2024-43866 could potentially lead to NULL pointer access, making it exploitable in production environments if not mitigated.