CVE-2022-50213

netfilter: nf_tables: do not allow SET_ID to refer to another table

State: Published
Severity: 7.8 High
Published: Jun 18, 2025
Updated: Aug 5, 2026
Reserved: Jun 18, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: do not allow SET_ID to refer to another table

When doing lookups for sets on the same batch by using its ID, a set from a different table can be used.

Then, when the table is removed, a reference to the set may be kept after the set is freed, leading to a potential use-after-free.

When looking for sets by ID, use the table that was used for the lookup by name, and only return sets belonging to that same table.

This fixes CVE-2022-2586, also reported as ZDI-CAN-17470.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	958bee14d0718ca7a5002c0f48a099d1d345812a to before 77d3b5038b7462318f5183e2ad704b01d57215a2Affected 958bee14d0718ca7a5002c0f48a099d1d345812a to before fab2f61cc3b0e441b1749f017cfee75f9bbaded7Affected 958bee14d0718ca7a5002c0f48a099d1d345812a to before 1a4b18b1ff11ba26f9a852019d674fde9d1d1cffAffected 958bee14d0718ca7a5002c0f48a099d1d345812a to before faafd9286f1355c76fe9ac3021c280297213330eAffected 958bee14d0718ca7a5002c0f48a099d1d345812a to before f4fa03410f7c5f5bd8f90e9c11e9a8c4b526ff6fAffected 958bee14d0718ca7a5002c0f48a099d1d345812a to before 0d07039397527361850c554c192e749cfc879ea9Affected 958bee14d0718ca7a5002c0f48a099d1d345812a to before 470ee20e069a6d05ae549f7d0ef2bdbcee6a81b2Affected
LinuxLinux	3.16Affected before 3.16Not affected 4.19.256 through 4.19.Not affected 5.4.211 through 5.4.Not affected 5.10.137 through 5.10.Not affected 5.15.61 through 5.15.Not affected 5.18.18 through 5.18.Not affected 5.19.2 through 5.19.Not affected 6.0 and laterNot affected

Product

Versions

LinuxLinux

958bee14d0718ca7a5002c0f48a099d1d345812a to before 77d3b5038b7462318f5183e2ad704b01d57215a2Affected
958bee14d0718ca7a5002c0f48a099d1d345812a to before fab2f61cc3b0e441b1749f017cfee75f9bbaded7Affected
958bee14d0718ca7a5002c0f48a099d1d345812a to before 1a4b18b1ff11ba26f9a852019d674fde9d1d1cffAffected
958bee14d0718ca7a5002c0f48a099d1d345812a to before faafd9286f1355c76fe9ac3021c280297213330eAffected
958bee14d0718ca7a5002c0f48a099d1d345812a to before f4fa03410f7c5f5bd8f90e9c11e9a8c4b526ff6fAffected
958bee14d0718ca7a5002c0f48a099d1d345812a to before 0d07039397527361850c554c192e749cfc879ea9Affected
958bee14d0718ca7a5002c0f48a099d1d345812a to before 470ee20e069a6d05ae549f7d0ef2bdbcee6a81b2Affected

LinuxLinux

3.16Affected
before 3.16Not affected
4.19.256 through 4.19.*Not affected
5.4.211 through 5.4.*Not affected
5.10.137 through 5.10.*Not affected
5.15.61 through 5.15.*Not affected
5.18.18 through 5.18.*Not affected
5.19.2 through 5.19.*Not affected
6.0 and laterNot affected

References

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