#VU111608 Input validation error in Linux kernel - CVE-2025-38032

Vulnerability identifier: #VU111608

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-2025-38032

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 ipmr_expire_process(), EXPORT_SYMBOL() and ip6mr_free_table() functions in net/ipv6/ip6mr.c, within the ipmr_expire_process(), EXPORT_SYMBOL() and ipmr_free_table() functions in net/ipv4/ipmr.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/1c518ae98302ab37786d5ba5d43e9ac6d6f894e3
https://git.kernel.org/stable/c/c46286fdd6aa1d0e33c245bcffe9ff2428a777bd

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?