SB2024082120 - NULL pointer dereference in Linux kernel mlx5 core driver
Published: August 21, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024082120
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) NULL pointer dereference (CVE-ID: CVE-2024-43866)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the mlx5_sf_dev_shutdown() function in drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c, within the mlx5_try_fast_unload() and shutdown() functions in drivers/net/ethernet/mellanox/mlx5/core/main.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/6b6c2ebd83f2bf97e8f221479372aaca97a4a9b2
- https://git.kernel.org/stable/c/6048dec754554a1303d632be6042d3feb3295285
- https://git.kernel.org/stable/c/1b75da22ed1e6171e261bc9265370162553d5393
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.113
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.45