CVE-2022-50001

netfilter: nft_tproxy: restrict to prerouting hook

MEDIUM

5.5

CVSS Score

Published: June 18, 2025 at 11:01 AM UTC

Updated: June 17, 2026 at 05:22 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

4.19 ≤ v < 4.19.2734.19 ≤ v < 5.10.1694.19 ≤ v < 5.15.954.19 ≤ v < 5.19.64.19 ≤ v < 5.4.2324.19 ≤ v < 6.04.20 ≤ v < 5.4.2325.11 ≤ v < 5.15.955.16 ≤ v < 5.19.65.5 ≤ v < 5.10.1694.194ed8eb6570a49931c705512060acd50058d616166.0 rc1 6.0 rc2

Vendor states this is fixed in 0b21edf4cc13516716848e0a4fdf726aa2a62cd9 (fixed)

Vendor states this is fixed in 18bbc3213383a82b05383827f4b1b882e3f0a5a5 (fixed)

Vendor states this is fixed in 343fed6b0daeb528ae5c9d4d84d9ff763ac95619 (fixed)

Vendor states this is fixed in 83ef55c4281f1b4c6bd4457c2e96ccd1c9e80200 (fixed)

Vendor states this is fixed in 9a1d92cbeac3335fee99fa865b8c5b0f2e71a8f7 (fixed)

Vendor states this is fixed in eaba3f9b672c3a3f820da8ee9584b9520674eafa (fixed)

Vendor states this is fixed in 4.19 (unaffected)

Vendor states this is fixed in 4.19.273 (unaffected)

Vendor states this is fixed in 5.10.169 (unaffected)

Vendor states this is fixed in 5.15.95 (unaffected)

Vendor states this is fixed in 5.19.6 (unaffected)

Vendor states this is fixed in 5.4.232 (unaffected)