CVE-2026-43024
Medium
Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: reject immediate NF_QUEUE verdict nft_queue is always used from userspace nftables to deliver the NF_QUEUE verdict. Immediately emitting an NF_QUEUE verdict is never used by the userspace nft tools, so reject immediate NF_QUEUE verdicts. The arp family does not provide queue support, but such an immediate verdict is still reachable. Globally reject NF_QUEUE immediate verdicts to address this issue.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedMay 1, 2026
First seenMay 1, 2026
How to fix
Update
- linux linux_kernel4.20, 5.5, 5.10.253, 5.15.203, 6.1.168, 6.6.134, 6.8, 6.12.81, 6.18.22, 6.19.12 or later
Patches
- git.kernel.org/stable/c/17dc5d5a935c771338430cbc156a16a51cfd31e8
- git.kernel.org/stable/c/2f7f825a548be55420f0f5f716f6c27b9d312d3f
- git.kernel.org/stable/c/42a47f4b1b7695026ab9bc1bb35d4622b0835c95
- git.kernel.org/stable/c/4b12a3cc3f075e750cc3c5e693fd25fb400af4a2
- git.kernel.org/stable/c/68390437a998c3f2c57212b413abef5e6d657d88
- git.kernel.org/stable/c/da107398cbd4bbdb6bffecb2ce86d5c9384f4cec
- git.kernel.org/stable/c/f140593901724cfbd16597c3a4fcb24a58ae44b0
- git.kernel.org/stable/c/f710691be163ae6b39e4bcab9e5be32d329f035b
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.19.307 ≤ v < 4.20, 5.4.269 ≤ v < 5.5, 5.10.210 ≤ v < 5.10.253, 5.15.149 ≤ v < 5.15.203, 6.1.76 ≤ v < 6.1.168, 6.6.15 ≤ v < 6.6.134, 6.7.3 ≤ v < 6.8, 6.8.1 ≤ v < 6.12.81, 6.13 ≤ v < 6.18.22, 6.19 ≤ v < 6.19.12, 6.8, 7.0 | 4.20, 5.5, 5.10.253, 5.15.203, 6.1.168, 6.6.134, 6.8, 6.12.81, 6.18.22, 6.19.12 |
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