#VU104634 NULL pointer dereference in Linux kernel - CVE-2022-49134
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104634
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-49134
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
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.