High severity7.8NVD Advisory· Published May 8, 2026· Updated Jun 17, 2026

CVE-2026-43454

Description

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: Fix for duplicate device in netdev hooks

When handling NETDEV_REGISTER notification, duplicate device registration must be avoided since the device may have been added by nft_netdev_hook_alloc() already when creating the hook.

Affected products

Linux/Kernel5 versions
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 4 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=6.16,<6.18.19
- cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
- (no CPE)
osv-coords76 versions
pkg:linux/kernel pkg:rpm/almalinux/kernel pkg:rpm/almalinux/kernel-64k pkg:rpm/almalinux/kernel-64k-core pkg:rpm/almalinux/kernel-64k-debug pkg:rpm/almalinux/kernel-64k-debug-core pkg:rpm/almalinux/kernel-64k-debug-devel pkg:rpm/almalinux/kernel-64k-debug-devel-matched pkg:rpm/almalinux/kernel-64k-debug-modules pkg:rpm/almalinux/kernel-64k-debug-modules-core pkg:rpm/almalinux/kernel-64k-debug-modules-extra pkg:rpm/almalinux/kernel-64k-devel pkg:rpm/almalinux/kernel-64k-devel-matched pkg:rpm/almalinux/kernel-64k-modules pkg:rpm/almalinux/kernel-64k-modules-core pkg:rpm/almalinux/kernel-64k-modules-extra pkg:rpm/almalinux/kernel-abi-stablelists pkg:rpm/almalinux/kernel-core pkg:rpm/almalinux/kernel-cross-headers pkg:rpm/almalinux/kernel-debug pkg:rpm/almalinux/kernel-debug-core pkg:rpm/almalinux/kernel-debug-devel pkg:rpm/almalinux/kernel-debug-devel-matched pkg:rpm/almalinux/kernel-debug-modules pkg:rpm/almalinux/kernel-debug-modules-core pkg:rpm/almalinux/kernel-debug-modules-extra pkg:rpm/almalinux/kernel-debug-uki-virt pkg:rpm/almalinux/kernel-devel pkg:rpm/almalinux/kernel-devel-matched pkg:rpm/almalinux/kernel-doc pkg:rpm/almalinux/kernel-headers pkg:rpm/almalinux/kernel-modules pkg:rpm/almalinux/kernel-modules-core pkg:rpm/almalinux/kernel-modules-extra pkg:rpm/almalinux/kernel-modules-extra-matched pkg:rpm/almalinux/kernel-rt pkg:rpm/almalinux/kernel-rt-64k pkg:rpm/almalinux/kernel-rt-64k-core pkg:rpm/almalinux/kernel-rt-64k-debug pkg:rpm/almalinux/kernel-rt-64k-debug-core pkg:rpm/almalinux/kernel-rt-64k-debug-devel pkg:rpm/almalinux/kernel-rt-64k-debug-modules pkg:rpm/almalinux/kernel-rt-64k-debug-modules-core pkg:rpm/almalinux/kernel-rt-64k-debug-modules-extra pkg:rpm/almalinux/kernel-rt-64k-devel pkg:rpm/almalinux/kernel-rt-64k-modules pkg:rpm/almalinux/kernel-rt-64k-modules-core pkg:rpm/almalinux/kernel-rt-64k-modules-extra pkg:rpm/almalinux/kernel-rt-core pkg:rpm/almalinux/kernel-rt-debug pkg:rpm/almalinux/kernel-rt-debug-core pkg:rpm/almalinux/kernel-rt-debug-devel pkg:rpm/almalinux/kernel-rt-debug-modules pkg:rpm/almalinux/kernel-rt-debug-modules-core pkg:rpm/almalinux/kernel-rt-debug-modules-extra pkg:rpm/almalinux/kernel-rt-devel pkg:rpm/almalinux/kernel-rt-modules pkg:rpm/almalinux/kernel-rt-modules-core pkg:rpm/almalinux/kernel-rt-modules-extra pkg:rpm/almalinux/kernel-tools pkg:rpm/almalinux/kernel-tools-libs pkg:rpm/almalinux/kernel-tools-libs-devel pkg:rpm/almalinux/kernel-uki-virt pkg:rpm/almalinux/kernel-uki-virt-addons pkg:rpm/almalinux/kernel-zfcpdump pkg:rpm/almalinux/kernel-zfcpdump-core pkg:rpm/almalinux/kernel-zfcpdump-devel pkg:rpm/almalinux/kernel-zfcpdump-devel-matched pkg:rpm/almalinux/kernel-zfcpdump-modules pkg:rpm/almalinux/kernel-zfcpdump-modules-core pkg:rpm/almalinux/kernel-zfcpdump-modules-extra pkg:rpm/almalinux/libperf pkg:rpm/almalinux/perf pkg:rpm/almalinux/python3-perf pkg:rpm/almalinux/rtla pkg:rpm/almalinux/rv
>= 6.16.0, < 6.18.19+ 75 more
- (no CPE)range: >= 6.16.0, < 6.18.19
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2
- (no CPE)range: < 6.12.0-211.50.1.el10_2

cvss	0.507
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000

CVE-2026-43454

Description

Affected products

Patches

Vulnerability mechanics

References

News mentions