Medium · published May 1, 2026
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.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 4.19.307, < 4.20 | 4.20 |
| linux/linux_kernel | ≥ 5.4.269, < 5.5 | 5.5 |
| linux/linux_kernel | ≥ 5.10.210, < 5.10.253 | 5.10.253 |
| linux/linux_kernel | ≥ 5.15.149, < 5.15.203 | 5.15.203 |
| linux/linux_kernel | ≥ 6.1.76, < 6.1.168 | 6.1.168 |
| linux/linux_kernel | ≥ 6.6.15, < 6.6.134 | 6.6.134 |
| linux/linux_kernel | ≥ 6.7.3, < 6.8 | 6.8 |
| linux/linux_kernel | ≥ 6.8.1, < 6.12.81 | 6.12.81 |
| linux/linux_kernel | ≥ 6.13, < 6.18.22 | 6.18.22 |
| linux/linux_kernel | ≥ 6.19, < 6.19.12 | 6.19.12 |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |