Bug 2373652 (CVE-2022-50001) - CVE-2022-50001 kernel: netfilter: nft_tproxy: restrict to prerouting hook
Summary: CVE-2022-50001 kernel: netfilter: nft_tproxy: restrict to prerouting hook
Keywords:
Status: NEW
Alias: CVE-2022-50001
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-06-18 12:12 UTC by OSIDB Bzimport
Modified: 2025-06-18 21:47 UTC (History)
4 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-06-18 12:12:22 UTC 
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.
Comment 1 Avinash Hanwate 2025-06-18 21:36:56 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025061828-CVE-2022-50001-51f3@gregkh/T
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