CVE-2022-3566 Linux Kernel TCP tcp_setsockopt race condition

What is CVE-2022-3566?

CVE-2022-3566 is a low-severity vulnerability in Linux kernel, published on 17 Oct 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability was identified in Linux Kernel up to 4.19.316/5.4.278/5.10.220/5.15.161. This impacts the function tcp_getsockopt/tcp_setsockopt of the component TCP Handler. Such manipulation leads to race condition. A high complexity level is associated with this attack. The exploitability is said to be difficult. The vulnerability was introduced in 2.6.12, commit 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ("Linux-2.6.12-rc2"). Upgrading to version 4.19.317, 5.4.279, 5.10.221, 5.15.162 and 6.1 will fix this issue. The name of the patch is fcd31dd8291b23d713245947ec2b2d99ef07aef2/3b32f265805a49071e2c4568a524398ba22bf93c/d529193eae979a7bf2255cd9fe68b7af7a1c91b3/5bb642cc3355ffd3c8bca0a8bd8e6e65bcc2091c/f49cd2f4d6170d27a2c61f1fecb03d8a70c91f57. The affected component should be upgraded.

Weakness: CWE-362

Which versions are affected by CVE-2022-3566?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-3566?

Upgrade to a fixed version.

Is CVE-2022-3566 being exploited?

There is no known exploitation of CVE-2022-3566 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2022-3566, GHSA-qfg2-8gf5-3xfc, ROOT-OS-DEBIAN-11-CVE-2022-3566, UBUNTU-CVE-2022-3566.