#VU112332 Input validation error in Linux kernel - CVE-2025-38194

Vulnerability identifier: #VU112332

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-2025-38194

CWE-ID: CWE-20

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 improper input validation within the jffs2_sum_write_sumnode() function in fs/jffs2/summary.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/337f80f3d546e131c7aa90b61d8cde051ae858c7
https://git.kernel.org/stable/c/346cfb9d19ea7feb6fb57917b21c4797fb444dab
https://git.kernel.org/stable/c/3f46644a5131a4793fc95c32a7d0a769745b06e7
https://git.kernel.org/stable/c/4adee34098a6ee86a54bf3ec885eab620c126a6b
https://git.kernel.org/stable/c/8ce46dc5b10b0b6f67663202a4921b0e11ad7367
https://git.kernel.org/stable/c/c0edcdb4fc106d69a2d1a0ce4868193511c389f3
https://git.kernel.org/stable/c/da12ef7e19048dc5714032c2db587a215852b200
https://git.kernel.org/stable/c/ec9e6f22bce433b260ea226de127ec68042849b0

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?