What’s Vulnerable › Vulnerabilities

CVE-2024-41043: netfilter: nfnetlink_queue: drop bogus WARN_ON

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-07-29 · updated 2026-06-17
• Weakness: CWE-617

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_queue: drop bogus WARN_ON Happens when rules get flushed/deleted while packet is out, so remove this WARN_ON. This WARN exists in one form or another since v4.14, no need to backport this to older releases, hence use a more recent fixes tag.

Affected products

• Linux kernel: from 6.9 before 6.9.10; 6.10-rc1, 6.10-rc2, 6.10-rc3, 6.10-rc4, 6.10-rc5, 6.10-rc6 (+1) — fixed in 6.9.10

How to fix

Upgrade to a fixed version: Linux kernel 6.9.10. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/631a4b3ddc7831b20442c59c28b0476d0704c9af
• https://git.kernel.org/stable/c/86858da8335db48bde9be02abd7156a69d622e86
• https://git.kernel.org/stable/c/631a4b3ddc7831b20442c59c28b0476d0704c9af
• https://git.kernel.org/stable/c/86858da8335db48bde9be02abd7156a69d622e86

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