SB20250226452 - NULL pointer dereference in Linux kernel mellanox mlxsw driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226452
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-2022-49134)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the mlxsw_sp_fdb_notify_mac_process() function in drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c, within the mlxsw_sp1_ptp_got_timestamp() function in drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c, within the mlxsw_sp_pude_event_func() function in drivers/net/ethernet/mellanox/mlxsw/spectrum.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.