{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-43451",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-01T14:12:56.010Z",
        "datePublished": "2026-05-08T14:22:16.716Z",
        "dateUpdated": "2026-05-11T22:24:50.659Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T22:24:50.659Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/netfilter/nfnetlink_queue.c"
                    ],
                    "versions": [
                        {
                            "version": "8d45ff22f1b43249f0cf1baafe0262ca10d1666e",
                            "lessThan": "a907bea273b60d3e604ec4e8e1f6c49954805794",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8d45ff22f1b43249f0cf1baafe0262ca10d1666e",
                            "lessThan": "0b18d1b834ab5a5009be70b530f978d7989e445b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8d45ff22f1b43249f0cf1baafe0262ca10d1666e",
                            "lessThan": "b38d2b4603fd3dda24eb8b3dd81c18a0930be97b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8d45ff22f1b43249f0cf1baafe0262ca10d1666e",
                            "lessThan": "47b1c5d1b0944aa88299f55a846fabaefc756982",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8d45ff22f1b43249f0cf1baafe0262ca10d1666e",
                            "lessThan": "cf4a4df38d1747e06fc54f9879bd7a6f4178032f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8d45ff22f1b43249f0cf1baafe0262ca10d1666e",
                            "lessThan": "9853d94b82d303fc4ac37d592a23a154096ecd41",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8d45ff22f1b43249f0cf1baafe0262ca10d1666e",
                            "lessThan": "208669df703a25a601f45822b10c413f258bf275",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8d45ff22f1b43249f0cf1baafe0262ca10d1666e",
                            "lessThan": "f1ba83755d81c6fc66ac7acd723d238f974091e9",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/netfilter/nfnetlink_queue.c"
                    ],
                    "versions": [
                        {
                            "version": "4.7",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.7",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.253",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.203",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.167",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.130",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.78",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.19",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.9",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.7",
                                    "versionEndExcluding": "5.10.253"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionEndExcluding": "7.0"
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                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/a907bea273b60d3e604ec4e8e1f6c49954805794"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0b18d1b834ab5a5009be70b530f978d7989e445b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b38d2b4603fd3dda24eb8b3dd81c18a0930be97b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/47b1c5d1b0944aa88299f55a846fabaefc756982"
                },
                {
                    "url": "https://git.kernel.org/stable/c/cf4a4df38d1747e06fc54f9879bd7a6f4178032f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9853d94b82d303fc4ac37d592a23a154096ecd41"
                },
                {
                    "url": "https://git.kernel.org/stable/c/208669df703a25a601f45822b10c413f258bf275"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f1ba83755d81c6fc66ac7acd723d238f974091e9"
                }
            ],
            "title": "netfilter: nfnetlink_queue: fix entry leak in bridge verdict error path",
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