{
  "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-2022-49395",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49395",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-02-26T02:11:25.676Z",
    "updatedAt": "2026-05-11T18:58:55.326Z",
    "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": "um: Fix out-of-bounds read in LDT setup",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\num: Fix out-of-bounds read in LDT setup\n\nsyscall_stub_data() expects the data_count parameter to be the number of\nlongs, not bytes.\n\n ==================================================================\n BUG: KASAN: stack-out-of-bounds in syscall_stub_data+0x70/0xe0\n Read of size 128 at addr 000000006411f6f0 by task swapper/1\n\n CPU: 0 PID: 1 Comm: swapper Not tainted 5.18.0+ #18\n Call Trace:\n  show_stack.cold+0x166/0x2a7\n  __dump_stack+0x3a/0x43\n  dump_stack_lvl+0x1f/0x27\n  print_report.cold+0xdb/0xf81\n  kasan_report+0x119/0x1f0\n  kasan_check_range+0x3a3/0x440\n  memcpy+0x52/0x140\n  syscall_stub_data+0x70/0xe0\n  write_ldt_entry+0xac/0x190\n  init_new_ldt+0x515/0x960\n  init_new_context+0x2c4/0x4d0\n  mm_init.constprop.0+0x5ed/0x760\n  mm_alloc+0x118/0x170\n  0x60033f48\n  do_one_initcall+0x1d7/0x860\n  0x60003e7b\n  kernel_init+0x6e/0x3d4\n  new_thread_handler+0x1e7/0x2c0\n\n The buggy address belongs to stack of task swapper/1\n  and is located at offset 64 in frame:\n  init_new_ldt+0x0/0x960\n\n This frame has 2 objects:\n  [32, 40) 'addr'\n  [64, 80) 'desc'\n ==================================================================",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "858259cf7d1c443c836a2022b78cb281f0a9b95e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "668ca34a428d6ffc0f99a1a6a9b661a288d4183b"
            },
            {
              "version": "858259cf7d1c443c836a2022b78cb281f0a9b95e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ef1dc929a1e5fa1b2d842256db9fb8710d3be910"
            },
            {
              "version": "858259cf7d1c443c836a2022b78cb281f0a9b95e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3549ab4b962cf619e8c55484a0d870a34b3f845f"
            },
            {
              "version": "858259cf7d1c443c836a2022b78cb281f0a9b95e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9caad70819aef3431abaf73ba5163b55b161aba0"
            },
            {
              "version": "858259cf7d1c443c836a2022b78cb281f0a9b95e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cf0dabc37446c5ee538ae7b4c467ab0e53fa5463"
            },
            {
              "version": "858259cf7d1c443c836a2022b78cb281f0a9b95e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "10995a382271254bd276627ec74136da4a23c4a6"
            },
            {
              "version": "858259cf7d1c443c836a2022b78cb281f0a9b95e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "24ca648bf5f72ed8878cf09b5d4431935779681e"
            },
            {
              "version": "858259cf7d1c443c836a2022b78cb281f0a9b95e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "91e5ba2af2d729d5126aefd5aa3eadc69b8426e5"
            },
            {
              "version": "858259cf7d1c443c836a2022b78cb281f0a9b95e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2a4a62a14be1947fa945c5c11ebf67326381a568"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.15",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.15"
            },
            {
              "version": "4.9.318",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.9.*"
            },
            {
              "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": "5.10.121",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.46",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "5.17.14",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.17.*"
            },
            {
              "version": "5.18.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.18.*"
            },
            {
              "version": "5.19",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}