#VU109519 NULL pointer dereference in Linux kernel - CVE-2025-37900

Vulnerability identifier: #VU109519

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-2025-37900

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 include/linux/iommu.h. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.14, 6.14.1, 6.14.2, 6.14.3, 6.14.4, 6.14.5

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External links
https://git.kernel.org/stable/c/2e303d010722787dc84d94f68d70fe10dfc1b9ea
https://git.kernel.org/stable/c/30a3f2f3e4bd6335b727c83c08a982d969752bc1
https://git.kernel.org/stable/c/967d6f0d9a20a1bf15ee7ed881e2d4e532e22709
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.6

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.