#VU107758 Use of uninitialized resource in Linux kernel - CVE-2025-22059

Vulnerability identifier: #VU107758

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-2025-22059

CWE-ID: CWE-908

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 use of uninitialized resource within the udp_rmem_schedule() and __udp_enqueue_schedule_skb() functions in net/ipv4/udp.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.12, 6.12.1, 6.12.2, 6.12.3, 6.12.4, 6.12.5, 6.12.6, 6.12.7, 6.12.8, 6.12.9, 6.12.10, 6.12.11, 6.12.12, 6.12.13, 6.12.14, 6.12.15, 6.12.16, 6.12.17, 6.12.18, 6.12.19, 6.12.20, 6.12.21, 6.12.22

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External links
https://git.kernel.org/stable/c/1f529988efe9870db802cb79d01d8f473099b4d7
https://git.kernel.org/stable/c/5a465a0da13ee9fbd7d3cd0b2893309b0fe4b7e3
https://git.kernel.org/stable/c/7571aadd20289e9ea10ebfed0986f39ed8b3c16b
https://git.kernel.org/stable/c/94d5ad7b41122be33ebc2a6830fe710cba1ecd75
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.23

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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.