What’s Vulnerable › Vulnerabilities

CVE-2025-22110: netfilter: nfnetlink_queue: Initialize ctx to avoid memory allocation error

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-16 · updated 2026-07-30
• Weakness: CWE-908

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_queue: Initialize ctx to avoid memory allocation error It is possible that ctx in nfqnl_build_packet_message() could be used before it is properly initialize, which is only initialized by nfqnl_get_sk_secctx(). This patch corrects this problem by initializing the lsmctx to a safe value when it is declared. This is similar to the commit 35fcac7a7c25 ("audit: Initialize lsmctx to avoid memory allocation error").

Affected products

• Linux kernel: from 6.14 before 6.14.2 — fixed in 6.14.2

How to fix

Upgrade to a fixed version: Linux kernel 6.14.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/778b09d91baafb13408470c721d034d6515cfa5a
• https://git.kernel.org/stable/c/ddbf7e1d82a1d0c1d3425931a6cb1b83f8454759

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