{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-89949",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.777Z",
        "datePublished": "2026-09-16T10:32:34.794Z",
        "dateUpdated": "2026-10-19T08:55:23.408Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T08:55:23.408Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: dat: avoid unaligned fault in IP extraction\n\nIndependent of the alignment of the ARP packet in the SKB, either the\nbatadv_arp_ip_src or the batadv_arp_ip_dst will have an unaligned access\n(on HW without native unaligned read support).\n\nUse get_unaligned() to handle this properly on all architectures."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/batman-adv/distributed-arp-table.c"
                    ],
                    "versions": [
                        {
                            "version": "5c3a0e5535933349a5d6e6bc8b704e0611f21d3f",
                            "lessThan": "b1bbc694ca51adb8dbed3f3235b4fcbdb44e0e20",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5c3a0e5535933349a5d6e6bc8b704e0611f21d3f",
                            "lessThan": "15dbfb37f0e1a085d48deeb8f5238e9d28127dde",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5c3a0e5535933349a5d6e6bc8b704e0611f21d3f",
                            "lessThan": "a170d4617e8cca05a1314de61728a262ef272782",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5c3a0e5535933349a5d6e6bc8b704e0611f21d3f",
                            "lessThan": "c74a4acf41d19f21199dec2d6c813c90d31cd02c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5c3a0e5535933349a5d6e6bc8b704e0611f21d3f",
                            "lessThan": "91c99b4e152023c7d458a5dedd52d2b0d7df4ce3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5c3a0e5535933349a5d6e6bc8b704e0611f21d3f",
                            "lessThan": "1cfa7d5f70d54cb8c7e82df739430782d1996ee1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5c3a0e5535933349a5d6e6bc8b704e0611f21d3f",
                            "lessThan": "0c2df865338bbf92aa45b9253e5f9b8ef2d9992f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5c3a0e5535933349a5d6e6bc8b704e0611f21d3f",
                            "lessThan": "0121afa52cdb88cfb4d5d7bd126a23a9100121d8",
                            "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/batman-adv/distributed-arp-table.c"
                    ],
                    "versions": [
                        {
                            "version": "3.8",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.8",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.270",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.221",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.188",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.157",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.110",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.51",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.5",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "3.8",
                                    "versionEndExcluding": "5.10.270"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.8",
                                    "versionEndExcluding": "5.15.221"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.8",
                                    "versionEndExcluding": "6.1.188"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.8",
                                    "versionEndExcluding": "6.6.157"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.8",
                                    "versionEndExcluding": "6.12.110"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.8",
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                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.8",
                                    "versionEndExcluding": "7.2.5"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.8",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/b1bbc694ca51adb8dbed3f3235b4fcbdb44e0e20"
                },
                {
                    "url": "https://git.kernel.org/stable/c/15dbfb37f0e1a085d48deeb8f5238e9d28127dde"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a170d4617e8cca05a1314de61728a262ef272782"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c74a4acf41d19f21199dec2d6c813c90d31cd02c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/91c99b4e152023c7d458a5dedd52d2b0d7df4ce3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1cfa7d5f70d54cb8c7e82df739430782d1996ee1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0c2df865338bbf92aa45b9253e5f9b8ef2d9992f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0121afa52cdb88cfb4d5d7bd126a23a9100121d8"
                }
            ],
            "title": "batman-adv: dat: avoid unaligned fault in IP extraction",
            "x_generator": {
                "engine": "bippy-1.2.0"
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    }
}