{
  "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-2022-49907",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49907",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-05-01T14:10:51.073Z",
    "updatedAt": "2026-05-11T19:09:02.150Z",
    "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: mdio: fix undefined behavior in bit shift for __mdiobus_register",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mdio: fix undefined behavior in bit shift for __mdiobus_register\n\nShifting signed 32-bit value by 31 bits is undefined, so changing\nsignificant bit to unsigned. The UBSAN warning calltrace like below:\n\nUBSAN: shift-out-of-bounds in drivers/net/phy/mdio_bus.c:586:27\nleft shift of 1 by 31 places cannot be represented in type 'int'\nCall Trace:\n <TASK>\n dump_stack_lvl+0x7d/0xa5\n dump_stack+0x15/0x1b\n ubsan_epilogue+0xe/0x4e\n __ubsan_handle_shift_out_of_bounds+0x1e7/0x20c\n __mdiobus_register+0x49d/0x4e0\n fixed_mdio_bus_init+0xd8/0x12d\n do_one_initcall+0x76/0x430\n kernel_init_freeable+0x3b3/0x422\n kernel_init+0x24/0x1e0\n ret_from_fork+0x1f/0x30\n </TASK>",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "4fd5f812c23c7deee6425f4a318e85c317cd1d6c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "20ed01a7b9af6e6a3c33761eebbb710ea6dd49b7"
            },
            {
              "version": "4fd5f812c23c7deee6425f4a318e85c317cd1d6c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7006176a3c863e3e353ce1b8a349ef5bb1b9320e"
            },
            {
              "version": "4fd5f812c23c7deee6425f4a318e85c317cd1d6c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a3fafc974be37319679f36dc4e7cca7db1e02973"
            },
            {
              "version": "4fd5f812c23c7deee6425f4a318e85c317cd1d6c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4954b5359eb141499492fadfab891e28905509e2"
            },
            {
              "version": "4fd5f812c23c7deee6425f4a318e85c317cd1d6c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "634f066d02bdb22a26da7deb0c7617ab1a65fc9d"
            },
            {
              "version": "4fd5f812c23c7deee6425f4a318e85c317cd1d6c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "985a88bf0b27193522bba7856b1763f428cef19d"
            },
            {
              "version": "4fd5f812c23c7deee6425f4a318e85c317cd1d6c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6ce6f8f8f6316da6f92afe7490bc2f0b654d68e0"
            },
            {
              "version": "4fd5f812c23c7deee6425f4a318e85c317cd1d6c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "40e4eb324c59e11fcb927aa46742d28aba6ecb8a"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.28",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.28"
            },
            {
              "version": "4.9.333",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.9.*"
            },
            {
              "version": "4.14.299",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.265",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.224",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.154",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.78",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.0.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.0.*"
            },
            {
              "version": "6.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}