CVE-2024-44970: net/mlx5e: SHAMPO, Fix invalid WQ linked list unlink
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: SHAMPO, Fix invalid WQ linked list unlink
When all the strides in a WQE have been consumed, the WQE is unlinked from the WQ linked list (mlx5wqllpop()). For SHAMPO, it is possible to receive CQEs with 0 consumed strides for the same WQE even after the WQE is fully consumed and unlinked. This triggers an additional unlink for the same wqe which corrupts the linked list.
Fix this scenario by accepting 0 sized consumed strides without unlinking the WQE again.
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
Event History
Frequently Asked Questions
What is the severity of CVE-2024-44970?
CVE-2024-44970 has a severity rating of high due to potential exploitation risks in the Linux kernel.
How do I fix CVE-2024-44970?
To fix CVE-2024-44970, update to the latest Linux kernel versions as outlined in the relevant security advisories.
Which versions of the Linux kernel are affected by CVE-2024-44970?
CVE-2024-44970 affects Linux kernel versions up to 6.1.105, between 6.2 and 6.6.46, and between 6.7 and 6.10.5.
Is there a workaround for CVE-2024-44970?
Currently, the best mitigation for CVE-2024-44970 is to apply the available security patches.
What component of the Linux kernel is impacted by CVE-2024-44970?
CVE-2024-44970 impacts the net/mlx5e component of the Linux kernel related to WQE management.