What’s Vulnerable › Vulnerabilities

CVE-2024-27064: netfilter: nf_tables: Fix a memory leak in nf_tables_updchain

• 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: 2024-05-01 · updated 2026-06-17
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: Fix a memory leak in nf_tables_updchain If nft_netdev_register_hooks() fails, the memory associated with nft_stats is not freed, causing a memory leak. This patch fixes it by moving nft_stats_alloc() down after nft_netdev_register_hooks() succeeds.

Affected products

• Linux kernel: from 6.3.3 before 6.4; from 6.4 before 6.6.23; from 6.7 before 6.7.11; from 6.8 before 6.8.2 — fixed in 6.4, 6.6.23, 6.7.11, 6.8.2

How to fix

Upgrade to a fixed version: Linux kernel 6.4, 6.6.23, 6.7.11, 6.8.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/4e4623a4f6e133e671f65f9ac493bddaaf63e250
• https://git.kernel.org/stable/c/79846fdcc548d617b0b321addc6a3821d3b75b20
• https://git.kernel.org/stable/c/7eaf837a4eb5f74561e2486972e7f5184b613f6e
• https://git.kernel.org/stable/c/e77a6b53a3a547b6dedfc40c37cee4f310701090
• https://git.kernel.org/stable/c/4e4623a4f6e133e671f65f9ac493bddaaf63e250
• https://git.kernel.org/stable/c/79846fdcc548d617b0b321addc6a3821d3b75b20
• https://git.kernel.org/stable/c/7eaf837a4eb5f74561e2486972e7f5184b613f6e
• https://git.kernel.org/stable/c/e77a6b53a3a547b6dedfc40c37cee4f310701090

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