#VU112201 NULL pointer dereference in Linux kernel - CVE-2025-38138

Vulnerability identifier: #VU112201

Vulnerability risk: Low

CVSSv4.0: 4.3 [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-2025-38138

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: 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 udma_probe() function in drivers/dma/ti/k3-udma.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/643db430f4cbd91dd2b63c49d62d0abb6debc13b
https://git.kernel.org/stable/c/9f133e04c62246353b8b1f0a679535c65161ebcf
https://git.kernel.org/stable/c/b79e10050d9d1e200541d25751dd5cb8ec58483c
https://git.kernel.org/stable/c/bc6ddff79835f71310a21645d8fcf08ec473e969
https://git.kernel.org/stable/c/d61d5ba5bd5b0e39e30b34dcd92946e084bca0d0
https://git.kernel.org/stable/c/ec1ea394c40523835bbedd8fc4934b77b461b6fe
https://git.kernel.org/stable/c/fd447415e74bccd7362f760d4ea727f8e1ebfe91

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?