What’s Vulnerable › Vulnerabilities

CVE-2022-49919: netfilter: nf_tables: release flow rule object from commit path

• Severity: high (CVSS 7.0 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: 2025-05-01 · updated 2026-08-04
• Weakness: CWE-362

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: release flow rule object from commit path No need to postpone this to the commit release path, since no packets are walking over this object, this is accessed from control plane only. This helped uncovered UAF triggered by races with the netlink notifier.

Affected products

• Linux kernel: from 5.4.198 before 5.4.224; from 5.10.122 before 5.10.154; from 5.15.47 before 5.15.78; from 5.17.15 before 5.18; from 5.18.4 before 6.0.8; 6.1-rc1, 6.1-rc2, 6.1-rc3 — fixed in 5.10.154, 5.15.78, 5.18, 5.4.224, 6.0.8

How to fix

Upgrade to a fixed version: Linux kernel 5.10.154, 5.15.78, 5.18, 5.4.224. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/26b5934ff4194e13196bedcba373cd4915071d0e
• https://git.kernel.org/stable/c/4ab6f96444e936f5e4a936d5c0bc948144bcded3
• https://git.kernel.org/stable/c/6044791b7be707fd0e709f26e961a446424e5051
• https://git.kernel.org/stable/c/74fd5839467054cd9c4d050614d3ee8788386171
• https://git.kernel.org/stable/c/b2d7a92aff0fbd93c29d2aa6451fb99f050e2c4e

Get alerted when CVE-2022-49919 or the next vulnerability affects your stack