CVE-2022-50001: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_tproxy: restrict to prerouting hook TPROXY is only allowed from prerouting, but nft_tproxy doesn't check this. This fixes a crash (null dereference) when using tproxy from e.g. output.

Affected products

• Linux Linux Kernel: from 4.19, before 4.19.273 (fixed in 4.19.273); from 4.20, before 5.4.232 (fixed in 5.4.232); from 5.5, before 5.10.169 (fixed in 5.10.169); from 5.11, before 5.15.95 (fixed in 5.15.95); from 5.16, before 5.19.6 (fixed in 5.19.6); version 6.0 only

Published 2025-06-18. Last modified 2026-06-17.