#VU104981 Out-of-bounds read in Linux kernel - CVE-2025-21782

Vulnerability identifier: #VU104981

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-2025-21782

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 orangefs_debug_write() function in fs/orangefs/orangefs-debugfs.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/1c5244299241cf49d8ae7b5054e299cc8faa4e09
https://git.kernel.org/stable/c/1da2697307dad281dd690a19441b5ca4af92d786
https://git.kernel.org/stable/c/2b84a231910cef2e0a16d29294afabfb69112087
https://git.kernel.org/stable/c/897f496b946fdcfab5983c983e4b513ab6682364
https://git.kernel.org/stable/c/f7c848431632598ff9bce57a659db6af60d75b39

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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.