What’s Vulnerable › Vulnerabilities

CVE-2024-56783: netfilter: nft_socket: remove WARN_ON_ONCE on maximum cgroup level

• 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: 2025-01-08 · updated 2026-06-17
• Weakness: CWE-617

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_socket: remove WARN_ON_ONCE on maximum cgroup level cgroup maximum depth is INT_MAX by default, there is a cgroup toggle to restrict this maximum depth to a more reasonable value not to harm performance. Remove unnecessary WARN_ON_ONCE which is reachable from userspace.

Affected products

• Linux kernel: from 6.1.112 before 6.1.120; from 6.6.53 before 6.6.66; from 6.10.12 before 6.12.5; 6.13-rc1 — fixed in 6.1.120, 6.12.5, 6.6.66

How to fix

Upgrade to a fixed version: Linux kernel 6.1.120, 6.12.5, 6.6.66. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2f9bec0a749eb646b384fde0c7b7c24687b2ffae
• https://git.kernel.org/stable/c/7064a6daa4a700a298fe3aee11dea296bfe59fc4
• https://git.kernel.org/stable/c/b7529880cb961d515642ce63f9d7570869bbbdc3
• https://git.kernel.org/stable/c/e227c042580ab065edc610c9ddc9bea691e6fc4d
• https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

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