Improper locking in Linux kernel - CVE-2025-37895

Vulnerability identifier: #VU109541

CSH Severity: Low

CVSS v4: 6.8 [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]

CVE-ID: CVE-2025-37895

CWE-ID: CWE-667

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper locking within the bnxt_init_napi() function in drivers/net/ethernet/broadcom/bnxt/bnxt.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-oem-6.14 (Ubuntu package)
linux-aws (Ubuntu package)
linux-oracle (Ubuntu package)
linux-aws-6.14 (Ubuntu package)

Install update from vendor's website.

Linux kernel - update to 6.12.28
linux (Ubuntu package) - addressed in versions 6.14.0-24.24, 6.14.0-1006.6, 6.14.0-1009.9, 6.14.0-1011.11
linux-oem-6.14 (Ubuntu package) - update to 6.14.0-1007.7
linux-aws (Ubuntu package) - update to 6.14.0-1009.9
linux-oracle (Ubuntu package) - update to 6.14.0-1009.9
linux-aws-6.14 (Ubuntu package) - update to 6.14.0-1009.9~24.04.1

• https://git.kernel.org/stable/c/21116727f452474502ee74f956d5e7466103e19b
• https://git.kernel.org/stable/c/9ab7a709c926c16b4433cf02d04fcbcf35aaab2b
• https://git.kernel.org/stable/c/e039b00ddbfeaa0dc59b8659be114f1a1b37c5bf
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.28

• Improper locking in Linux kernel broadcom bnxt driver
• Ubuntu update for linux-oem-6.14
• Ubuntu update for linux
• Ubuntu update for linux-aws
• Ubuntu update for linux-oracle
• Ubuntu update for linux-aws-6.14