{
  "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-2022-49329",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49329",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-02-26T02:10:50.073Z",
    "updatedAt": "2026-05-11T18:57:35.437Z",
    "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": "vduse: Fix NULL pointer dereference on sysfs access",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nvduse: Fix NULL pointer dereference on sysfs access\n\nThe control device has no drvdata. So we will get a\nNULL pointer dereference when accessing control\ndevice's msg_timeout attribute via sysfs:\n\n[ 132.841881][ T3644] BUG: kernel NULL pointer dereference, address: 00000000000000f8\n[ 132.850619][ T3644] RIP: 0010:msg_timeout_show (drivers/vdpa/vdpa_user/vduse_dev.c:1271)\n[ 132.869447][ T3644] dev_attr_show (drivers/base/core.c:2094)\n[ 132.870215][ T3644] sysfs_kf_seq_show (fs/sysfs/file.c:59)\n[ 132.871164][ T3644] ? device_remove_bin_file (drivers/base/core.c:2088)\n[ 132.872082][ T3644] kernfs_seq_show (fs/kernfs/file.c:164)\n[ 132.872838][ T3644] seq_read_iter (fs/seq_file.c:230)\n[ 132.873578][ T3644] ? __vmalloc_area_node (mm/vmalloc.c:3041)\n[ 132.874532][ T3644] kernfs_fop_read_iter (fs/kernfs/file.c:238)\n[ 132.875513][ T3644] __kernel_read (fs/read_write.c:440 (discriminator 1))\n[ 132.876319][ T3644] kernel_read (fs/read_write.c:459)\n[ 132.877129][ T3644] kernel_read_file (fs/kernel_read_file.c:94)\n[ 132.877978][ T3644] kernel_read_file_from_fd (include/linux/file.h:45 fs/kernel_read_file.c:186)\n[ 132.879019][ T3644] __do_sys_finit_module (kernel/module.c:4207)\n[ 132.879930][ T3644] __ia32_sys_finit_module (kernel/module.c:4189)\n[ 132.880930][ T3644] do_int80_syscall_32 (arch/x86/entry/common.c:112 arch/x86/entry/common.c:132)\n[ 132.881847][ T3644] entry_INT80_compat (arch/x86/entry/entry_64_compat.S:419)\n\nTo fix it, don't create the unneeded attribute for\ncontrol device anymore.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "c8a6153b6c59d95c0e091f053f6f180952ade91e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3a7a81f4835dfda11f39fdd27586da14331896eb"
            },
            {
              "version": "c8a6153b6c59d95c0e091f053f6f180952ade91e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "30fd1b56621e187346f65d01fe34870634b15188"
            },
            {
              "version": "c8a6153b6c59d95c0e091f053f6f180952ade91e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b22fdee17ec62604060fb0fda5e1414b634666e1"
            },
            {
              "version": "c8a6153b6c59d95c0e091f053f6f180952ade91e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b27ee76c74dc831d6e092eaebc2dfc9c0beed1c9"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.15",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.15"
            },
            {
              "version": "5.15.47",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "5.17.15",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.17.*"
            },
            {
              "version": "5.18.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.18.*"
            },
            {
              "version": "5.19",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}