#VU111600 Improper locking in Linux kernel - CVE-2025-38063

Vulnerability identifier: #VU111600

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-2025-38063

CWE-ID: CWE-667

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 locking within the __send_empty_flush() function in drivers/md/dm.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/2858cda9a8d95e6deee7e3b0a26adde696a9a4f5
https://git.kernel.org/stable/c/52aa28f7b1708d76e315d78b5ed397932a1a97c3
https://git.kernel.org/stable/c/88f7f56d16f568f19e1a695af34a7f4a6ce537a6
https://git.kernel.org/stable/c/95d08924335f3b6f4ea0b92ebfe4fe0731c502d9
https://git.kernel.org/stable/c/b55a97d1bd4083729a60d19beffe85d4c96680de

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?