NULL pointer dereference in Linux kernel - CVE-2025-37919

Vulnerability identifier: #VU109523

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-2025-37919

CWE-ID: CWE-476

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 NULL pointer dereference within the acp_i2s_set_tdm_slot() function in sound/soc/amd/acp/acp-i2s.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 6.14.6
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/3104b7d559ffb28f34e55028ff55a475e26e2e1e
• https://git.kernel.org/stable/c/6d9b64156d849e358cb49b6b899fb0b7d262bda8
• https://git.kernel.org/stable/c/fd4d8d139030dd2de97ef46d332673675ca8ad72
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.6

• NULL pointer dereference in Linux kernel amd acp
• 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