What’s Vulnerable › Vulnerabilities

CVE-2022-49358: netfilter: nf_tables: memleak flow rule from commit path

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-26 · updated 2026-06-17
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: memleak flow rule from commit path Abort path release flow rule object, however, commit path does not. Update code to destroy these objects before releasing the transaction.

Affected products

• Linux kernel: from 5.3 before 5.4.198; from 5.5 before 5.10.122; from 5.11 before 5.15.47; from 5.16 before 5.17.15; from 5.18 before 5.18.4; 5.19-rc1 — fixed in 5.10.122, 5.15.47, 5.17.15, 5.18.4, 5.4.198

How to fix

Upgrade to a fixed version: Linux kernel 5.10.122, 5.15.47, 5.17.15, 5.18.4. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/330c0c6cd2150a2d7f47af16aa590078b0d2f736
• https://git.kernel.org/stable/c/5b8d63489c3b701eb2a76f848ec94d8cbc9373b9
• https://git.kernel.org/stable/c/80de9ea1f5b808a6601e91111fae601df2b26369
• https://git.kernel.org/stable/c/9dd732e0bdf538b1b76dc7c157e2b5e560ff30d3
• https://git.kernel.org/stable/c/ab9f34a30c23f656e76f4c5b83125a4e7b53c86e
• https://git.kernel.org/stable/c/e33d9bd563e71f6c6528b96008d65524a459c4dc

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