#VU107671 Use-after-free in Linux kernel - CVE-2025-22057

Vulnerability identifier: #VU107671

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-22057

CWE-ID: CWE-416

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 escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the dst_count_dec() function in net/core/dst.c. A local user can escalate privileges on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.14, 6.14.1

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External links
https://git.kernel.org/stable/c/3a0a3ff6593d670af2451ec363ccb7b18aec0c0a
https://git.kernel.org/stable/c/836415a8405c9665ae55352fc5ba865c242f5e4f
https://git.kernel.org/stable/c/92a5c18513117be69bc00419dd1724c1940f8fcd
https://git.kernel.org/stable/c/ccc331fd5bcae131d2627d5ef099d4a1f6540aea
https://git.kernel.org/stable/c/e833e7ad64eb2f63867f65303be49ca30ee8819e
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.2

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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.