SB20240620186 - NULL pointer dereference in Linux kernel en rep driver
Published: June 20, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240620186
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-2022-48746)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the mlx5e_rep_bond_unslave(), mlx5e_rep_changelowerstate_event(), mlx5e_rep_changeupper_event() and mlx5e_rep_esw_bond_netevent() functions in drivers/net/ethernet/mellanox/mlx5/core/en/rep/bond.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/a01ee1b8165f4161459b5ec4e728bc7130fe8cd4
- https://git.kernel.org/stable/c/fe70126da6063c29ca161cdec7ad1dae9af836b3
- https://git.kernel.org/stable/c/4fad499d7fece448e7230d5e5b92f6d8a073e0bb
- https://git.kernel.org/stable/c/ec41332e02bd0acf1f24206867bb6a02f5877a62
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.97
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.20
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17