#VU113254 Out-of-bounds read in Linux kernel - CVE-2025-38375

Vulnerability identifier: #VU113254

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-2025-38375

CWE-ID: CWE-125

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 an out-of-bounds read error within the mergeable_ctx_to_truesize(), virtnet_get_headroom(), xdp_linearize_page(), receive_small_xdp() and mergeable_xdp_get_buf() functions in drivers/net/virtio_net.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/11f2d0e8be2b5e784ac45fa3da226492c3e506d8
https://git.kernel.org/stable/c/315dbdd7cdf6aa533829774caaf4d25f1fd20e73
https://git.kernel.org/stable/c/6aca3dad2145e864dfe4d1060f45eb1bac75dd58
https://git.kernel.org/stable/c/80b971be4c37a4d23a7f1abc5ff33dc7733d649b
https://git.kernel.org/stable/c/982beb7582c193544eb9c6083937ec5ac1c9d651
https://git.kernel.org/stable/c/bc68bc3563344ccdc57d1961457cdeecab8f81ef

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?