netfilter: nf_nat: unregister and release hooks on error
CVE-2026-98321 is fixed in 20 products on 1 platform, first by DEBIAN-CVE-2026-98321, released October 6, 2026. It is not reported as exploited. Patch Radar priority: Urgent.
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_nat: unregister and release hooks on error If nf_hook_entries_insert_raw() fails, the NAT hooks get never released, resulting in a memleak. Postpone setting nat_proto_net->nat_hook_ops when the hooks are registered to simplify the error path to decide whether the nat hooks need unwinding.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool6.18 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| bpftool6.18-debuginfo · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel-livepatch-6.18.54-121.166 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-debuginfo · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-debuginfo-common-aarch64 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-debuginfo-common-x86_64 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-devel · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-headers · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-modules-extra · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-modules-extra-common · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-tools · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-tools-debuginfo · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-tools-devel · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| linux · Debian 14 | 7.2.8-1 | DEBIAN-CVE-2026-98321 | Oct 6, 2026 |
| microvm-kernel6.18 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| perf6.18 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| perf6.18-debuginfo · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| python3-perf6.18 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| python3-perf6.18-debuginfo · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.