#VU103585 NULL pointer dereference in Linux kernel - CVE-2025-21675
Published: February 4, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU103585
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:U/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-21675
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 mlx5_lag_port_sel_create() and mlx5_destroy_ttc_table() functions in drivers/net/ethernet/mellanox/mlx5/core/lag/port_sel.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/1f6e619ef2a4def555b14ac2aeb4304bfccad59b
- https://git.kernel.org/stable/c/473bc285378f49aa27e5b3e95a6d5ed12995d654
- https://git.kernel.org/stable/c/5641e82cb55b4ecbc6366a499300917d2f3e6790
- https://git.kernel.org/stable/c/efc92a260e23cf9fafb0b6f6c9beb6f8df93fab4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.127