#VU112293 Out-of-bounds read in Linux kernel - CVE-2025-38218

Vulnerability identifier: #VU112293

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-2025-38218

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 f2fs_sanity_check_ckpt() and DIV_ROUND_UP() functions in fs/f2fs/super.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/38ef48a8afef8df646b6f6ae7abb872f18b533c1
https://git.kernel.org/stable/c/3e5ac62a56a24f4d88ce8ffd7bc452428b235868
https://git.kernel.org/stable/c/5db0d252c64e91ba1929c70112352e85dc5751e7
https://git.kernel.org/stable/c/79ef8a6c4ec53d327580fd7d2b522cf4f1d05b0c
https://git.kernel.org/stable/c/82f51bff393e4c12cf4de553120ca831cfa4ef19
https://git.kernel.org/stable/c/ad862f71016ba38039df1c96ed55c0a4314cc183
https://git.kernel.org/stable/c/ee1b421c469876544e297ec1090574bd76100247

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?