{"affected":[{"defaultStatus":"unaffected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"lessThan":"a907bea273b60d3e604ec4e8e1f6c49954805794","status":"affected","version":"8d45ff22f1b43249f0cf1baafe0262ca10d1666e","versionType":"git"},{"lessThan":"0b18d1b834ab5a5009be70b530f978d7989e445b","status":"affected","version":"8d45ff22f1b43249f0cf1baafe0262ca10d1666e","versionType":"git"},{"lessThan":"b38d2b4603fd3dda24eb8b3dd81c18a0930be97b","status":"affected","version":"8d45ff22f1b43249f0cf1baafe0262ca10d1666e","versionType":"git"},{"lessThan":"47b1c5d1b0944aa88299f55a846fabaefc756982","status":"affected","version":"8d45ff22f1b43249f0cf1baafe0262ca10d1666e","versionType":"git"},{"lessThan":"cf4a4df38d1747e06fc54f9879bd7a6f4178032f","status":"affected","version":"8d45ff22f1b43249f0cf1baafe0262ca10d1666e","versionType":"git"},{"lessThan":"9853d94b82d303fc4ac37d592a23a154096ecd41","status":"affected","version":"8d45ff22f1b43249f0cf1baafe0262ca10d1666e","versionType":"git"},{"lessThan":"208669df703a25a601f45822b10c413f258bf275","status":"affected","version":"8d45ff22f1b43249f0cf1baafe0262ca10d1666e","versionType":"git"},{"lessThan":"f1ba83755d81c6fc66ac7acd723d238f974091e9","status":"affected","version":"8d45ff22f1b43249f0cf1baafe0262ca10d1666e","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"status":"affected","version":"4.7"},{"lessThan":"4.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.78","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.19","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cveId":"CVE-2026-43451","cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nfnetlink_queue: fix entry leak in bridge verdict error path\n\nnfqnl_recv_verdict() calls find_dequeue_entry() to remove the queue\nentry from the queue data structures, taking ownership of the entry.\nFor PF_BRIDGE packets, it then calls nfqa_parse_bridge() to parse VLAN\nattributes.  If nfqa_parse_bridge() returns an error (e.g. NFQA_VLAN\npresent but NFQA_VLAN_TCI missing), the function returns immediately\nwithout freeing the dequeued entry or its sk_buff.\n\nThis leaks the nf_queue_entry, its associated sk_buff, and all held\nreferences (net_device refcounts, struct net refcount).  Repeated\ntriggering exhausts kernel memory.\n\nFix this by dropping the entry via nfqnl_reinject() with NF_DROP verdict\non the error path, consistent with other error handling in this file.","epss":{"date":"2026-11-06","percentile":0.02037,"score":0.00123},"exploits":[],"kev":null,"metrics":[],"modifiedAt":1793979775539,"publishedAt":1778250136716,"references":[{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/a907bea273b60d3e604ec4e8e1f6c49954805794"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/0b18d1b834ab5a5009be70b530f978d7989e445b"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/b38d2b4603fd3dda24eb8b3dd81c18a0930be97b"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/47b1c5d1b0944aa88299f55a846fabaefc756982"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/cf4a4df38d1747e06fc54f9879bd7a6f4178032f"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/9853d94b82d303fc4ac37d592a23a154096ecd41"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/208669df703a25a601f45822b10c413f258bf275"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/f1ba83755d81c6fc66ac7acd723d238f974091e9"}],"remediation":[],"revision":"cd2f9121603df3cbb4347d31b2f0a480e517a858c55b8118c828203978ab6022","sources":[{"modifiedAt":1793979775539,"name":"CNA: Linux","retrievedAt":1793981717687,"url":"https://www.cve.org/CVERecord?id=CVE-2026-43451"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793981730663,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-43451"}],"ssvc":{"assessedAt":1793979558435,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"netfilter: nfnetlink_queue: fix entry leak in bridge verdict error path","updatedAt":1793981730663}