Incorrect calculation in Linux kernel - CVE-2025-38573

Vulnerability identifier: #VU114295

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-2025-38573

CWE-ID: CWE-682

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 incorrect calculation within the cs42l43_create_bridge_amp() function in drivers/spi/spi-cs42l43.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-realtime-6.14 (Ubuntu package)
linux-azure (Ubuntu package)
linux-aws-6.14 (Ubuntu package)
linux-gcp-6.14 (Ubuntu package)

Install update from vendor's repository.

linux (Ubuntu package) - addressed in versions 6.14.0-36.36, 6.14.0-36.36~24.04.1, 6.14.0-1016.16~24.04.1, 6.14.0-1017.17, 6.14.0-1020.21
linux-oem-6.14 (Ubuntu package) - update to 6.14.0-1016.16
linux-realtime-6.14 (Ubuntu package) - update to 6.14.0-1016.16~24.04.1
linux-azure (Ubuntu package) - addressed in versions 6.14.0-1017.17, 6.14.0-1017.17~24.04.1
linux-aws-6.14 (Ubuntu package) - update to 6.14.0-1017.17~24.04.1
linux-gcp-6.14 (Ubuntu package) - addressed in versions 6.14.0-1018.18, 6.14.0-1020.21~24.04.1

• https://git.kernel.org/stable/c/139b5df757a0aa436f763b0038e0b73808d2f4b6
• https://git.kernel.org/stable/c/674328102baad76c7a06628efc01974ece5ae27f
• https://git.kernel.org/stable/c/9f0035ae38d2571f5ddedc829d74492013caa625
• https://git.kernel.org/stable/c/ffcfd071eec7973e58c4ffff7da4cb0e9ca7b667

• Incorrect calculation in Linux kernel spi driver
• Ubuntu update for linux-oem-6.14
• Ubuntu update for linux-realtime-6.14
• Ubuntu update for linux
• Ubuntu update for linux-aws-6.14
• Ubuntu update for linux-gcp-6.14
• Ubuntu update for linux-azure