#VU113267 NULL pointer dereference in Linux kernel - CVE-2025-38420

Vulnerability identifier: #VU113267

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-2025-38420

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 carl9170_usb_rx_complete() function in drivers/net/wireless/ath/carl9170/usb.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/0140d3d37f0f1759d1fdedd854c7875a86e15f8d
https://git.kernel.org/stable/c/11ef72b3312752c2ff92f3c1e64912be3228ed36
https://git.kernel.org/stable/c/15d25307692312cec4b57052da73387f91a2e870
https://git.kernel.org/stable/c/301268dbaac8e9013719e162a000202eac8054be
https://git.kernel.org/stable/c/4e9ab5c48ad5153cc908dd29abad0cd2a92951e4
https://git.kernel.org/stable/c/527fad1ae32ffa2d4853a1425fe1c8dbb8c9744c
https://git.kernel.org/stable/c/8a3734a6f4c05fd24605148f21fb2066690d61b3
https://git.kernel.org/stable/c/bfeede26e97ce4a15a0b961118de4a0e28c9907a

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?