CVE-2026-43084
linux: In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_queue: make hash table per...
CVE-2026-43084 is fixed in 72 products on 1 platform, first by ALAS2023-2026-1695, released May 8, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.8
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0013
2nd percentile
In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_queue: make hash table per queue Sharing a global hash table among all queues is tempting, but it can cause crash: BUG: KASAN: slab-use-after-free in nfqnl_recv_verdict+0x11ac/0x15e0 [nfnetlink_queue] [..] nfqnl_recv_verdict+0x11ac/0x15e0 [nfnetlink_queue] nfnetlink_rcv_msg+0x46a/0x930 kmem_cache_alloc_node_noprof+0x11e/0x450 struct nf_queue_entry is freed via kfree, but parallel cpu can still encounter such an nf_queue_entry when walking the list. Alternative fix is to free the nf_queue_entry via kfree_rcu() instead, but as we have to alloc/free for each skb this will cause more mem pressure.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool6.12 · amzn 2023 | 1:6.12.83-113.160.amzn2023 | ALAS2023-2026-1695 | May 8, 2026 |
| bpftool6.12-debuginfo · amzn 2023 | 1:6.12.83-113.160.amzn2023 | ALAS2023-2026-1695 | May 8, 2026 |
| bpftool6.18 · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| bpftool6.18-debuginfo · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel-livepatch-6.12.83-113.160 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-1695 | May 8, 2026 |
| kernel-livepatch-6.18.25-55.108 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel-uek · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-core · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-core · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug-core · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug-core · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug-devel · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug-devel · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug-modules · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug-modules · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug-modules-core · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug-modules-core · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug-modules-deprecated · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug-modules-deprecated · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug-modules-desktop · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug-modules-desktop · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug-modules-extra · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug-modules-extra · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug-modules-usb · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug-modules-usb · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug-modules-wireless · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-debug-modules-wireless · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-devel · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-devel · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-doc · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-doc · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-modules · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-modules · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-modules-core · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-modules-core · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-modules-deprecated · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-modules-deprecated · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-modules-desktop · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-modules-desktop · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-modules-extra · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-modules-extra · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-modules-extra-netfilter · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-modules-extra-netfilter · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-modules-usb · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-modules-usb · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-modules-wireless · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-modules-wireless · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-tools · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek-tools · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k-core · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k-core · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k-devel · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k-devel · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k-modules · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k-modules · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k-modules-core · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k-modules-core · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k-modules-deprecated · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k-modules-deprecated · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k-modules-desktop · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k-modules-desktop · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k-modules-extra · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k-modules-extra · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k-modules-usb · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k-modules-usb · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k-modules-wireless · ol 10 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel-uek64k-modules-wireless · ol 9 | 0:6.12.0-203.76.7.1.el9uek | ELSA-2026-50293 | Jun 2, 2026 |
| kernel6.12 · amzn 2023 | 1:6.12.83-113.160.amzn2023 | ALAS2023-2026-1695 | May 8, 2026 |
| kernel6.12-debuginfo · amzn 2023 | 1:6.12.83-113.160.amzn2023 | ALAS2023-2026-1695 | May 8, 2026 |
| kernel6.12-debuginfo-common-aarch64 · amzn 2023 | 1:6.12.83-113.160.amzn2023 | ALAS2023-2026-1695 | May 8, 2026 |
| kernel6.12-debuginfo-common-x86_64 · amzn 2023 | 1:6.12.83-113.160.amzn2023 | ALAS2023-2026-1695 | May 8, 2026 |
| kernel6.12-devel · amzn 2023 | 1:6.12.83-113.160.amzn2023 | ALAS2023-2026-1695 | May 8, 2026 |
| kernel6.12-headers · amzn 2023 | 1:6.12.83-113.160.amzn2023 | ALAS2023-2026-1695 | May 8, 2026 |
| kernel6.12-modules-extra · amzn 2023 | 1:6.12.83-113.160.amzn2023 | ALAS2023-2026-1695 | May 8, 2026 |
| kernel6.12-modules-extra-common · amzn 2023 | 1:6.12.83-113.160.amzn2023 | ALAS2023-2026-1695 | May 8, 2026 |
| kernel6.12-tools · amzn 2023 | 1:6.12.83-113.160.amzn2023 | ALAS2023-2026-1695 | May 8, 2026 |
| kernel6.12-tools-debuginfo · amzn 2023 | 1:6.12.83-113.160.amzn2023 | ALAS2023-2026-1695 | May 8, 2026 |
| kernel6.12-tools-devel · amzn 2023 | 1:6.12.83-113.160.amzn2023 | ALAS2023-2026-1695 | May 8, 2026 |
| kernel6.18 · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel6.18-debuginfo · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel6.18-debuginfo-common-aarch64 · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel6.18-debuginfo-common-x86_64 · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel6.18-devel · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel6.18-headers · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel6.18-modules-extra · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel6.18-modules-extra-common · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel6.18-tools · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel6.18-tools-debuginfo · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel6.18-tools-devel · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| linux · Debian 14 | 6.19.14-1 | DEBIAN-CVE-2026-43084 | May 15, 2026 |
| perf6.12 · amzn 2023 | 1:6.12.83-113.160.amzn2023 | ALAS2023-2026-1695 | May 8, 2026 |
| perf6.12-debuginfo · amzn 2023 | 1:6.12.83-113.160.amzn2023 | ALAS2023-2026-1695 | May 8, 2026 |
| perf6.18 · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| perf6.18-debuginfo · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| python3-perf6.12 · amzn 2023 | 1:6.12.83-113.160.amzn2023 | ALAS2023-2026-1695 | May 8, 2026 |
| python3-perf6.12-debuginfo · amzn 2023 | 1:6.12.83-113.160.amzn2023 | ALAS2023-2026-1695 | May 8, 2026 |
| python3-perf6.18 · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| python3-perf6.18-debuginfo · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
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