{
  "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-2022-49827",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49827",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-05-01T14:09:46.805Z",
    "updatedAt": "2026-05-11T19:07:32.366Z",
    "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: Fix potential null-ptr-deref in drm_vblank_destroy_worker()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: Fix potential null-ptr-deref in drm_vblank_destroy_worker()\n\ndrm_vblank_init() call drmm_add_action_or_reset() with\ndrm_vblank_init_release() as action. If __drmm_add_action() failed, will\ndirectly call drm_vblank_init_release() with the vblank whose worker is\nNULL. As the resule, a null-ptr-deref will happen in\nkthread_destroy_worker(). Add the NULL check before calling\ndrm_vblank_destroy_worker().\n\nBUG: null-ptr-deref\nKASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f]\nCPU: 5 PID: 961 Comm: modprobe Not tainted 6.0.0-11331-gd465bff130bf-dirty\nRIP: 0010:kthread_destroy_worker+0x25/0xb0\n  Call Trace:\n    <TASK>\n    drm_vblank_init_release+0x124/0x220 [drm]\n    ? drm_crtc_vblank_restore+0x8b0/0x8b0 [drm]\n    __drmm_add_action_or_reset+0x41/0x50 [drm]\n    drm_vblank_init+0x282/0x310 [drm]\n    vkms_init+0x35f/0x1000 [vkms]\n    ? 0xffffffffc4508000\n    ? lock_is_held_type+0xd7/0x130\n    ? __kmem_cache_alloc_node+0x1c2/0x2b0\n    ? lock_is_held_type+0xd7/0x130\n    ? 0xffffffffc4508000\n    do_one_initcall+0xd0/0x4f0\n    ...\n    do_syscall_64+0x35/0x80\n    entry_SYSCALL_64_after_hwframe+0x46/0xb0",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "5e6c2b4f916157e8f10d093d43e88b2a250d1774",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1d160dfb3fdf11ba9447e862c548447f91f4e74a"
            },
            {
              "version": "5e6c2b4f916157e8f10d093d43e88b2a250d1774",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e884a6c2d49a6c12761e5bed851e9fe93bd923a1"
            },
            {
              "version": "5e6c2b4f916157e8f10d093d43e88b2a250d1774",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3acd2016421b2e628acad65495d15493bf7a3bc3"
            },
            {
              "version": "5e6c2b4f916157e8f10d093d43e88b2a250d1774",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4979524f5a2a8210e87fde2f642b0dc060860821"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.9",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.9"
            },
            {
              "version": "5.10.156",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.80",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.0.10",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.0.*"
            },
            {
              "version": "6.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}