{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-46101",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-13T15:03:33.097Z",
        "datePublished": "2026-05-27T12:59:08.220Z",
        "dateUpdated": "2026-06-14T17:54:30.068Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-14T17:54:30.068Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: reject zero shift in nft_bitwise\n\nReject zero shift operands for nft_bitwise left and right shift\nexpressions during initialization.\n\nThe carry propagation logic computes the carry from the adjacent 32-bit\nword using BITS_PER_TYPE(u32) - shift. A zero shift operand turns this\ninto a 32-bit shift, which is undefined behaviour.\n\nReject zero shift operands in the control plane, alongside the existing\ncheck for values greater than or equal to 32, so malformed rules never\nreach the packet path."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/netfilter/nft_bitwise.c"
                    ],
                    "versions": [
                        {
                            "version": "567d746b55bc66d3800c9ae91d50f0c5deb2fd93",
                            "lessThan": "9baa08d6b6b096fad70049533f0d705d85fdc979",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "567d746b55bc66d3800c9ae91d50f0c5deb2fd93",
                            "lessThan": "4fccea585631621c975883911a08d15b6671f7dc",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "567d746b55bc66d3800c9ae91d50f0c5deb2fd93",
                            "lessThan": "9ad26c272405f53834871cc2e46b9b5393a666c3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "567d746b55bc66d3800c9ae91d50f0c5deb2fd93",
                            "lessThan": "bffef0acec9c3b837a785248a893137fb7f26c95",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "567d746b55bc66d3800c9ae91d50f0c5deb2fd93",
                            "lessThan": "ca24f1243ad1a4d12d6a23876bbbe3ed02099853",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "567d746b55bc66d3800c9ae91d50f0c5deb2fd93",
                            "lessThan": "6f820139d16a4c9865a145d4a9cf9c92cc632c14",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "567d746b55bc66d3800c9ae91d50f0c5deb2fd93",
                            "lessThan": "f370205974f171a5868c13ff30d7642fed46e47b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "567d746b55bc66d3800c9ae91d50f0c5deb2fd93",
                            "lessThan": "fe11e5c40817b84abaa5d83bfb6586d8412bfd07",
                            "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/nft_bitwise.c"
                    ],
                    "versions": [
                        {
                            "version": "5.6",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.6",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.258",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.209",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.175",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.140",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.86",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.27",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.4",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.6",
                                    "versionEndExcluding": "5.10.258"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.6",
                                    "versionEndExcluding": "5.15.209"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.6",
                                    "versionEndExcluding": "6.1.175"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.6",
                                    "versionEndExcluding": "6.6.140"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.6",
                                    "versionEndExcluding": "6.12.86"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.6",
                                    "versionEndExcluding": "6.18.27"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.6",
                                    "versionEndExcluding": "7.0.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.6",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/9baa08d6b6b096fad70049533f0d705d85fdc979"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4fccea585631621c975883911a08d15b6671f7dc"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9ad26c272405f53834871cc2e46b9b5393a666c3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bffef0acec9c3b837a785248a893137fb7f26c95"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ca24f1243ad1a4d12d6a23876bbbe3ed02099853"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6f820139d16a4c9865a145d4a9cf9c92cc632c14"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f370205974f171a5868c13ff30d7642fed46e47b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fe11e5c40817b84abaa5d83bfb6586d8412bfd07"
                }
            ],
            "title": "netfilter: reject zero shift in nft_bitwise",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}