#VU112776 NULL pointer dereference in Linux kernel - CVE-2025-38265

Vulnerability identifier: #VU112776

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-2025-38265

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 jsm_uart_port_init() function in drivers/tty/serial/jsm/jsm_tty.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/3258d7ff8ebfa451426662b23e8f2b51b129afe1
https://git.kernel.org/stable/c/985961dd2688a527a4847300d41beaad475ab7af
https://git.kernel.org/stable/c/a14c0d2eb3f0b1836fdec22908b87ecffd2ac844
https://git.kernel.org/stable/c/abaecb2a4ad021c2f2426e9b2a9c020aef57aca9
https://git.kernel.org/stable/c/e3975aa899c0a3bbc10d035e699b142cd1373a71

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?