{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2022-49339",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49339",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-02-26T02:10:56.704Z",
    "updatedAt": "2026-05-11T18:57:47.159Z",
    "importedAt": "2026-10-24T01:56:49.724Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "net: ipv6: unexport __init-annotated seg6_hmac_init()",
      "summary": "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": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "64aef8efe96c1616142c4476a05731306fc4494e"
            },
            {
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ab8b2c2de273ec1d698a18e399896a6febb5cda0"
            },
            {
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "317260b3eb6384a05a8af212308fa50f3b2e8290"
            },
            {
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5d9c1b081ad28c852a97e10dd75412546497694a"
            },
            {
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1084716f76c8045eadf92a9d9a62641f3c8d8c90"
            },
            {
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3e6de5037148c5a93a436b1e8d2edad3dac11755"
            },
            {
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9ba4416b831eeb4d185e88e73488d1d21288e63a"
            },
            {
              "version": "bf355b8d2c30a289232042cacc1cfaea4923936c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5801f064e35181c71857a80ff18af4dbec3c5f5c"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.10",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.10"
            },
            {
              "version": "4.14.283",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.247",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.198",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.122",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.47",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "5.17.15",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.17.*"
            },
            {
              "version": "5.18.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.18.*"
            },
            {
              "version": "5.19",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}