CVE-2026-43060

HIGH

netfilter: nft_ct: drop pending enqueued packets on removal

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_ct: drop pending enqueued packets on removal Packets sitting in nfqueue might hold a reference to: - templates that specify the conntrack zone, because a percpu area is used and module removal is possible. - conntrack timeout policies and helper, where object removal leave a stale reference. Since these objects can just go away, drop enqueued packets to avoid stale reference to them. If there is a need for finer grain removal, this logic can be revisited to make selective packet drop upon dependencies.

Scores

CVSS v3 7.8
EPSS 0.0012
EPSS Percentile 2.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (27)
linux/Kernel 4.19.0 - 5.10.253linux
linux/Kernel 5.11.0 - 5.15.203linux
linux/Kernel 5.16.0 - 6.1.167linux
linux/Kernel 6.13.0 - 6.18.20linux
linux/Kernel 6.19.0 - 6.19.10linux
linux/Kernel 6.2.0 - 6.6.130linux
linux/Kernel 6.7.0 - 6.12.78linux
Linux/Linux < 4.19
Linux/Linux 4.19
Linux/Linux 5.10.253 - 5.10.*
... and 17 more
Published May 05, 2026
Tracked Since May 05, 2026