CVE-2024-46717

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue arises in the Linux kernel's net/mlx5e module, specifically with the SHAMPO (Shared Header And Memory Pool Optimization) feature. Under certain conditions, a new skb (socket buffer) is formed with a regular data page instead of a SHAMPO header page. Later, in the mlx5e handle rx cqe mpwrq shampo() function, a SHAMPO header page is released from the header index. This leads to SHAMPO header pages being released more than once, which is incorrect. The conditions for this to occur are: 1) no skb has been created yet, 2) header size equals 0 (indicating no SHAMPO header), and 3) header index + 1 % MLX5E SHAMPO WQ HEADER PER PAGE equals 0, marking the last page fragment of a SHAMPO header page.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.