{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-49339",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-02-26T02:08:31.541Z",
        "datePublished": "2025-02-26T02:10:56.704Z",
        "dateUpdated": "2026-05-11T18:57:47.159Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T18:57:47.159Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ipv6: unexport __init-annotated seg6_hmac_init()\n\nEXPORT_SYMBOL and __init is a bad combination because the .init.text\nsection is freed up after the initialization. Hence, modules cannot\nuse symbols annotated __init. The access to a freed symbol may end up\nwith kernel panic.\n\nmodpost used to detect it, but it has been broken for a decade.\n\nRecently, I fixed modpost so it started to warn it again, then this\nshowed up in linux-next builds.\n\nThere are two ways to fix it:\n\n  - Remove __init\n  - Remove EXPORT_SYMBOL\n\nI chose the latter for this case because the caller (net/ipv6/seg6.c)\nand the callee (net/ipv6/seg6_hmac.c) belong to the same module.\nIt seems an internal function call in ipv6.ko."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/ipv6/seg6_hmac.c"
                    ],
                    "versions": [
                        {
                            "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
                            "lessThan": "64aef8efe96c1616142c4476a05731306fc4494e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
                            "lessThan": "ab8b2c2de273ec1d698a18e399896a6febb5cda0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
                            "lessThan": "317260b3eb6384a05a8af212308fa50f3b2e8290",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
                            "lessThan": "5d9c1b081ad28c852a97e10dd75412546497694a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
                            "lessThan": "1084716f76c8045eadf92a9d9a62641f3c8d8c90",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
                            "lessThan": "3e6de5037148c5a93a436b1e8d2edad3dac11755",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
                            "lessThan": "9ba4416b831eeb4d185e88e73488d1d21288e63a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
                            "lessThan": "5801f064e35181c71857a80ff18af4dbec3c5f5c",
                            "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/ipv6/seg6_hmac.c"
                    ],
                    "versions": [
                        {
                            "version": "4.10",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.10",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.283",
                            "lessThanOrEqual": "4.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.247",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.198",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.122",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.47",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.17.15",
                            "lessThanOrEqual": "5.17.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.18.4",
                            "lessThanOrEqual": "5.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.19",
                            "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": "4.10",
                                    "versionEndExcluding": "4.14.283"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.10",
                                    "versionEndExcluding": "4.19.247"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.10",
                                    "versionEndExcluding": "5.4.198"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.10",
                                    "versionEndExcluding": "5.10.122"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.10",
                                    "versionEndExcluding": "5.15.47"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.10",
                                    "versionEndExcluding": "5.17.15"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.10",
                                    "versionEndExcluding": "5.18.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.10",
                                    "versionEndExcluding": "5.19"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/64aef8efe96c1616142c4476a05731306fc4494e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ab8b2c2de273ec1d698a18e399896a6febb5cda0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/317260b3eb6384a05a8af212308fa50f3b2e8290"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5d9c1b081ad28c852a97e10dd75412546497694a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1084716f76c8045eadf92a9d9a62641f3c8d8c90"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3e6de5037148c5a93a436b1e8d2edad3dac11755"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9ba4416b831eeb4d185e88e73488d1d21288e63a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5801f064e35181c71857a80ff18af4dbec3c5f5c"
                }
            ],
            "title": "net: ipv6: unexport __init-annotated seg6_hmac_init()",
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                "engine": "bippy-1.2.0"
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}