PT-2024-32143 · Linux+6 · Linux Kernel+6
Dragos Tatulea
+1
·
Published
2024-06-04
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Updated
2026-05-26
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CVE-2024-46717
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
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.
Exploit
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu