{
  "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-2022-50317",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-50317",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-09-15T14:48:50.167Z",
    "updatedAt": "2026-05-23T15:24:13.952Z",
    "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": "drm/bridge: megachips: Fix a null pointer dereference bug",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/bridge: megachips: Fix a null pointer dereference bug\n\nWhen removing the module we will get the following warning:\n\n[   31.911505] i2c-core: driver [stdp2690-ge-b850v3-fw] unregistered\n[   31.912484] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN PTI\n[   31.913338] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]\n[   31.915280] RIP: 0010:drm_bridge_remove+0x97/0x130\n[   31.921825] Call Trace:\n[   31.922533]  stdp4028_ge_b850v3_fw_remove+0x34/0x60 [megachips_stdpxxxx_ge_b850v3_fw]\n[   31.923139]  i2c_device_remove+0x181/0x1f0\n\nThe two bridges (stdp2690, stdp4028) do not probe at the same time, so\nthe driver does not call ge_b850v3_resgiter() when probing, causing the\ndriver to try to remove the object that has not been initialized.\n\nFix this by checking whether both the bridges are probed.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "7649972d97fb98578fbc4a351416cf72895e7c4d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "aaa512ad1e59f2edf8a9e4f2b167a44b24670679"
            },
            {
              "version": "16e3827904932eccfba0915f0c93b519de3536ac",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5bc20bafcd87ba0858ab772cefc7047cb51bc249"
            },
            {
              "version": "50ad94f8654a53ec9ca3604a7a23cbaf166e0119",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1daf69228e310938177119c4eadcd30fc75c81e0"
            },
            {
              "version": "b8d10f601f226f055df8b5368d7ea7f369136cd5",
              "status": "affected",
              "versionType": "git",
              "lessThan": "877e92e9b1bdeb580b31a46061005936be902cd4"
            },
            {
              "version": "405856460d3e7aefb7c1aef047ec88fc4ef2e2a5",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4610e7a4111fa3f3ce27c09d6d94008c55f1cd31"
            },
            {
              "version": "11632d4aa2b3f126790e81a4415d6c23103cf8bb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "21764467ab396d9f08921e0a5ffa1214244e1ad9"
            },
            {
              "version": "11632d4aa2b3f126790e81a4415d6c23103cf8bb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7371fad5cfe6eada6bb5523c895fd6074b15c2b9"
            },
            {
              "version": "11632d4aa2b3f126790e81a4415d6c23103cf8bb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1ff673333d46d2c1b053ebd0c1c7c7c79e36943e"
            },
            {
              "version": "e449461989f0674f188d30494ffd3f5ba74c1a05",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "4.14.263",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.14.296"
            },
            {
              "version": "4.19.226",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.19.262"
            },
            {
              "version": "5.4.174",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.4.220"
            },
            {
              "version": "5.10.94",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.150"
            },
            {
              "version": "5.15.17",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.75"
            },
            {
              "version": "5.16.3",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.17"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.17",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.17"
            },
            {
              "version": "4.14.296",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.262",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.220",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.150",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.75",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "5.19.17",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.19.*"
            },
            {
              "version": "6.0.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.0.*"
            },
            {
              "version": "6.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}