CVE-2026-43454: Linux Kernel nf_tables Duplicate Netdev Hook Reg.
CVE-2026-43454 Published on May 8, 2026
netfilter: nf_tables: Fix for duplicate device in netdev hooks
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.
Products Associated with CVE-2026-43454
Want to know whenever a new CVE is published for Linux Kernel? stack.watch will email you.
Affected Versions
Linux:- Version a331b78a552551d0e404e58e6390b1c828d6af8f and below 6d2a95c6890577cc3eab2b20018e16850d7fb094 is affected.
- Version a331b78a552551d0e404e58e6390b1c828d6af8f and below 2041cdb078041611510fc189410bc70b29f688fb is affected.
- Version a331b78a552551d0e404e58e6390b1c828d6af8f and below b7cdc5a97d02c943f4bdde4d5767ad0c13cad92b is affected.
- Version 6.16 is affected.
- Before 6.16 is unaffected.
- Version 6.18.19, <= 6.18.* is unaffected.
- Version 6.19.9, <= 6.19.* is unaffected.
- Version 7.0, <= * is unaffected.