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.
Affected products
linux: linux kernel
References7
- git.kernel.org/stable/c/0d07039397527361850c554c192e749cfc879ea9 Patch
- git.kernel.org/stable/c/1a4b18b1ff11ba26f9a852019d674fde9d1d1cff Patch
- git.kernel.org/stable/c/470ee20e069a6d05ae549f7d0ef2bdbcee6a81b2 Patch
- git.kernel.org/stable/c/77d3b5038b7462318f5183e2ad704b01d57215a2 Patch
- git.kernel.org/stable/c/f4fa03410f7c5f5bd8f90e9c11e9a8c4b526ff6f Patch
- git.kernel.org/stable/c/faafd9286f1355c76fe9ac3021c280297213330e Patch
- git.kernel.org/stable/c/fab2f61cc3b0e441b1749f017cfee75f9bbaded7 Patch
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 15 · as of 7 November 2026
- CWE
- CWE-416
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.