{"id":"CVE-2026-43454","summary":"netfilter: nf_tables: Fix for duplicate device in netdev hooks","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: Fix for duplicate device in netdev hooks\n\nWhen handling NETDEV_REGISTER notification, duplicate device\nregistration must be avoided since the device may have been added by\nnft_netdev_hook_alloc() already when creating the hook.","modified":"2026-07-15T01:49:11.997965056Z","published":"2026-05-08T14:22:18.719Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43454.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2041cdb078041611510fc189410bc70b29f688fb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6d2a95c6890577cc3eab2b20018e16850d7fb094"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b7cdc5a97d02c943f4bdde4d5767ad0c13cad92b"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43454.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43454"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"a331b78a552551d0e404e58e6390b1c828d6af8f"},{"fixed":"6d2a95c6890577cc3eab2b20018e16850d7fb094"},{"fixed":"2041cdb078041611510fc189410bc70b29f688fb"},{"fixed":"b7cdc5a97d02c943f4bdde4d5767ad0c13cad92b"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43454.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.16.0"},{"fixed":"6.18.19"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43454.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}