CVE-2026-23412

linux: In the Linux kernel, the following vulnerability has been resolved: netfilter: bpf: defer hook memory release until...

CVE-2026-23412 is fixed in 90 products on 1 platform, first by DEBIAN-CVE-2026-23412, released April 2, 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
0.0016
4th percentile

In the Linux kernel, the following vulnerability has been resolved: netfilter: bpf: defer hook memory release until rcu readers are done Yiming Qian reports UaF when concurrent process is dumping hooks via nfnetlink_hooks: BUG: KASAN: slab-use-after-free in nfnl_hook_dump_one.isra.0+0xe71/0x10f0 Read of size 8 at addr ffff888003edbf88 by task poc/79 Call Trace: <TASK> nfnl_hook_dump_one.isra.0+0xe71/0x10f0 netlink_dump+0x554/0x12b0 nfnl_hook_get+0x176/0x230 [..] Defer release until after concurrent readers have completed.

Where it's fixed

ProductFixed inFixReleased
Linux
bpftool6.12 · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
bpftool6.12-debuginfo · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
bpftool6.18 · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
bpftool6.18-debuginfo · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
kernel-64kb · sles 15.7 6.4.0-150700.53.55.1 SUSE-SU-2026:2238-1 Jun 30, 2026
kernel-azure · sles 15.7 6.4.0-150700.53.55.1 SUSE-SU-2026:2238-1 Jun 30, 2026
kernel-default · sles 15.7 6.4.0-150700.53.55.1 SUSE-SU-2026:2238-1 Jun 30, 2026
kernel-default-base · sles 15.7 6.4.0-150700.53.55.1.150700.17.33.1 SUSE-SU-2026:2238-1 Jun 30, 2026
kernel-docs · sles 15.7 6.4.0-150700.53.55.1 SUSE-SU-2026:2238-1 Jun 30, 2026
kernel-livepatch-6.12.79-101.147 · amzn 2023 1:1.0-0.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
kernel-livepatch-6.18.20-20.229 · amzn 2023 1:1.0-0.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
kernel-livepatch-SLE15-SP7_Update_15 · sles 15.7 1-150700.15.3.1 SUSE-SU-2026:2238-1 Jun 30, 2026
kernel-obs-build · sles 15.7 6.4.0-150700.53.55.1 SUSE-SU-2026:2238-1 Jun 30, 2026
kernel-source · sles 15.7 6.4.0-150700.53.55.1 SUSE-SU-2026:2238-1 Jun 30, 2026
kernel-syms · sles 15.7 6.4.0-150700.53.55.1 SUSE-SU-2026:2238-1 Jun 30, 2026
kernel-uek · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-core · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-core · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug-core · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug-core · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug-devel · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug-devel · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug-modules · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug-modules · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug-modules-core · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug-modules-core · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug-modules-deprecated · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug-modules-deprecated · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug-modules-desktop · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug-modules-desktop · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug-modules-extra · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug-modules-extra · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug-modules-extra-netfilter · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug-modules-extra-netfilter · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug-modules-usb · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug-modules-usb · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug-modules-wireless · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-debug-modules-wireless · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-devel · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-devel · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-doc · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-doc · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-modules · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-modules · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-modules-core · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-modules-core · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-modules-deprecated · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-modules-deprecated · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-modules-desktop · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-modules-desktop · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-modules-extra · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-modules-extra · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-modules-extra-netfilter · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-modules-extra-netfilter · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-modules-usb · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-modules-usb · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-modules-wireless · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-modules-wireless · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-tools · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek-tools · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k-core · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k-core · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k-devel · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k-devel · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k-modules · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k-modules · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k-modules-core · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k-modules-core · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k-modules-deprecated · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k-modules-deprecated · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k-modules-desktop · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k-modules-desktop · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k-modules-extra · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k-modules-extra · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k-modules-extra-netfilter · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k-modules-extra-netfilter · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k-modules-usb · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k-modules-usb · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k-modules-wireless · ol 10 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-uek64k-modules-wireless · ol 9 0:6.12.0-204.92.4.2.el9uek ELSA-2026-50372 Jul 2, 2026
kernel-zfcpdump · sles 15.7 6.4.0-150700.53.55.1 SUSE-SU-2026:2238-1 Jun 30, 2026
kernel6.12 · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
kernel6.12-debuginfo · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
kernel6.12-debuginfo-common-aarch64 · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
kernel6.12-debuginfo-common-x86_64 · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
kernel6.12-devel · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
kernel6.12-headers · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
kernel6.12-libbpf · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
kernel6.12-libbpf-debuginfo · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
kernel6.12-libbpf-devel · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
kernel6.12-libbpf-static · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
kernel6.12-modules-extra · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
kernel6.12-modules-extra-common · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
kernel6.12-tools · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
kernel6.12-tools-debuginfo · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
kernel6.12-tools-devel · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
kernel6.18 · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
kernel6.18-debuginfo · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
kernel6.18-debuginfo-common-aarch64 · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
kernel6.18-debuginfo-common-x86_64 · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
kernel6.18-devel · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
kernel6.18-headers · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
kernel6.18-libbpf · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
kernel6.18-libbpf-debuginfo · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
kernel6.18-libbpf-devel · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
kernel6.18-libbpf-static · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
kernel6.18-modules-extra · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
kernel6.18-modules-extra-common · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
kernel6.18-tools · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
kernel6.18-tools-debuginfo · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
kernel6.18-tools-devel · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
linux · Debian 13.5 (trixie) 6.12.85-1 DEBIAN-CVE-2026-23412 Apr 2, 2026
linux · Debian 14 6.19.10-1 DEBIAN-CVE-2026-23412 Apr 2, 2026
perf6.12 · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
perf6.12-debuginfo · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
perf6.18 · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
perf6.18-debuginfo · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
python3-perf6.12 · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
python3-perf6.12-debuginfo · amzn 2023 1:6.12.79-101.147.amzn2023 ALAS2023-2026-1594 Apr 27, 2026
python3-perf6.18 · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026
python3-perf6.18-debuginfo · amzn 2023 1:6.18.20-20.229.amzn2023 ALAS2023-2026-1596 Apr 27, 2026

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