{
  "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-2022-50747",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-50747",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-24T13:05:43.347Z",
    "updatedAt": "2026-08-05T08:59:36.990Z",
    "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": "hfs: Fix OOB Write in hfs_asc2mac",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nhfs: Fix OOB Write in hfs_asc2mac\n\nSyzbot reported a OOB Write bug:\n\nloop0: detected capacity change from 0 to 64\n==================================================================\nBUG: KASAN: slab-out-of-bounds in hfs_asc2mac+0x467/0x9a0\nfs/hfs/trans.c:133\nWrite of size 1 at addr ffff88801848314e by task syz-executor391/3632\n\nCall Trace:\n <TASK>\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106\n print_address_description+0x74/0x340 mm/kasan/report.c:284\n print_report+0x107/0x1f0 mm/kasan/report.c:395\n kasan_report+0xcd/0x100 mm/kasan/report.c:495\n hfs_asc2mac+0x467/0x9a0 fs/hfs/trans.c:133\n hfs_cat_build_key+0x92/0x170 fs/hfs/catalog.c:28\n hfs_lookup+0x1ab/0x2c0 fs/hfs/dir.c:31\n lookup_open fs/namei.c:3391 [inline]\n open_last_lookups fs/namei.c:3481 [inline]\n path_openat+0x10e6/0x2df0 fs/namei.c:3710\n do_filp_open+0x264/0x4f0 fs/namei.c:3740\n\nIf in->len is much larger than HFS_NAMELEN(31) which is the maximum\nlength of an HFS filename, a OOB write could occur in hfs_asc2mac(). In\nthat case, when the dst reaches the boundary, the srclen is still\ngreater than 0, which causes a OOB write.\nFix this by adding a check on dstlen in while() before writing to dst\naddress.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "328b9227865026268261a24a97a578907b280415",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8399318b13dc9e0569dee07ba2994098926d4fb2"
            },
            {
              "version": "328b9227865026268261a24a97a578907b280415",
              "status": "affected",
              "versionType": "git",
              "lessThan": "95040de81c629cd8d3c6ab5b50a8bd5088068303"
            },
            {
              "version": "328b9227865026268261a24a97a578907b280415",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ba8f0ca386dd15acf5a93cbac932392c7818eab4"
            },
            {
              "version": "328b9227865026268261a24a97a578907b280415",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6a95b17e4d4cd2d8278559f930b447f8c9c8cff9"
            },
            {
              "version": "328b9227865026268261a24a97a578907b280415",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cff9fefdfbf5744afbb6d70bff2b49ec2065d23d"
            },
            {
              "version": "328b9227865026268261a24a97a578907b280415",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7af9cb8cbb81308ce4b06cc7164267faccbf75dd"
            },
            {
              "version": "328b9227865026268261a24a97a578907b280415",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ae21b03f904736eb2aa9bd119d2a14e741f1681f"
            },
            {
              "version": "328b9227865026268261a24a97a578907b280415",
              "status": "affected",
              "versionType": "git",
              "lessThan": "88579c158e026860c61c4192531e8bc42f4bc642"
            },
            {
              "version": "328b9227865026268261a24a97a578907b280415",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c53ed55cb275344086e32a7080a6b19cb183650b"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.14",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.14"
            },
            {
              "version": "4.9.337",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.9.*"
            },
            {
              "version": "4.14.303",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.270",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.229",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.163",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.86",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.0.16",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.0.*"
            },
            {
              "version": "6.1.2",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}