Buffer overflow in Linux kernel rapidio driver

1) Buffer overflow

EUVDB-ID: #VU112123

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-2025-38090

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory corruption within the riocm_ch_send() function in drivers/rapidio/rio_cm.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

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/1921781ec4a8824bd0c520bf9363e28a880d14ec
https://git.kernel.org/stable/c/1cce6ac47f4a2ac1766b8a188dc8c8f6d8df2a53
https://git.kernel.org/stable/c/50695153d7ddde3b1696dbf0085be0033bf3ddb3
https://git.kernel.org/stable/c/58f664614f8c3d6142ab81ae551e466dc6e092e8
https://git.kernel.org/stable/c/6d5c6711a55c35ce09b90705546050408d9d4b61
https://git.kernel.org/stable/c/a8b5ea2e302aa5cd00fc7addd8df53c9bde7b5f6
https://git.kernel.org/stable/c/c03ddc183249f03fc7e057e02cae6f89144d0123
https://git.kernel.org/stable/c/ecf5ee280b702270afb02f61b299d3dfe3ec7730

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.