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.
Affected products
linux: linux kernel
References8
- git.kernel.org/stable/c/36eae0956f659e48d5366d9b083d9417f3263ddc Patch
- git.kernel.org/stable/c/3da0b946835f33bf36b459ead764c61a761e689b Patch
- git.kernel.org/stable/c/6802ff8beceb9c4254318e81c1395720438f2cc2 Patch
- git.kernel.org/stable/c/77da55dee67720e2b8d2db49a53334e6c017ee7b Patch
- git.kernel.org/stable/c/8a64e76933672b08bd85b63086f33432070fd729 Patch
- git.kernel.org/stable/c/ab50302190b303f847c4eba0e31a01a56dec596e Patch
- git.kernel.org/stable/c/e68a8db3a0546482b34e9ca5ca886bcf73eb37bb Patch
- git.kernel.org/stable/c/f29a055e4f593e577805b41228b142b58f48df1b Patch
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 2 · as of 13 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.