SB2024053040 - Memory leak in Linux kernel mlx5 core driver
Published: May 30, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024053040
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Memory leak (CVE-ID: CVE-2021-47438)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the mlx5_core_destroy_cq() function in drivers/net/ethernet/mellanox/mlx5/core/cq.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/4f7bddf8c5c01cac74373443b13a68e1c6723a94
- https://git.kernel.org/stable/c/ed8aafea4fec9c654e63445236e0b505e27ed3a7
- https://git.kernel.org/stable/c/94b960b9deffc02fc0747afc01f72cc62ab099e3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.75
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15