{
  "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-2022-50578",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-50578",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-10-22T13:23:31.565Z",
    "updatedAt": "2026-05-11T19:22:08.143Z",
    "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": "class: fix possible memory leak in __class_register()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nclass: fix possible memory leak in __class_register()\n\nIf class_add_groups() returns error, the 'cp->subsys' need be\nunregister, and the 'cp' need be freed.\n\nWe can not call kset_unregister() here, because the 'cls' will\nbe freed in callback function class_release() and it's also\nfreed in caller's error path, it will cause double free.\n\nSo fix this by calling kobject_del() and kfree_const(name) to\ncleanup kobject. Besides, call kfree() to free the 'cp'.\n\nFault injection test can trigger this:\n\nunreferenced object 0xffff888102fa8190 (size 8):\n  comm \"modprobe\", pid 502, jiffies 4294906074 (age 49.296s)\n  hex dump (first 8 bytes):\n    70 6b 74 63 64 76 64 00                          pktcdvd.\n  backtrace:\n    [<00000000e7c7703d>] __kmalloc_track_caller+0x1ae/0x320\n    [<000000005e4d70bc>] kstrdup+0x3a/0x70\n    [<00000000c2e5e85a>] kstrdup_const+0x68/0x80\n    [<000000000049a8c7>] kvasprintf_const+0x10b/0x190\n    [<0000000029123163>] kobject_set_name_vargs+0x56/0x150\n    [<00000000747219c9>] kobject_set_name+0xab/0xe0\n    [<0000000005f1ea4e>] __class_register+0x15c/0x49a\n\nunreferenced object 0xffff888037274000 (size 1024):\n  comm \"modprobe\", pid 502, jiffies 4294906074 (age 49.296s)\n  hex dump (first 32 bytes):\n    00 40 27 37 80 88 ff ff 00 40 27 37 80 88 ff ff  .@'7.....@'7....\n    00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00  .....N..........\n  backtrace:\n    [<00000000151f9600>] kmem_cache_alloc_trace+0x17c/0x2f0\n    [<00000000ecf3dd95>] __class_register+0x86/0x49a",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "ced6473e7486702f530a49f886b73195e4977734",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4efa5443817c1b6de22d401aeca5b2481e835f8c"
            },
            {
              "version": "ced6473e7486702f530a49f886b73195e4977734",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3bb9c92c27624ad076419a70f2b1a30cd1f8bbbd"
            },
            {
              "version": "ced6473e7486702f530a49f886b73195e4977734",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3e0efc3f3f5e5c73996782f8db69963e501bb878"
            },
            {
              "version": "ced6473e7486702f530a49f886b73195e4977734",
              "status": "affected",
              "versionType": "git",
              "lessThan": "18a7200646958cf8e1b8a933de08122fc50676cd"
            },
            {
              "version": "ced6473e7486702f530a49f886b73195e4977734",
              "status": "affected",
              "versionType": "git",
              "lessThan": "417ef049e3fd3b0d2593c1d5ffa3d0d5d0a018a7"
            },
            {
              "version": "ced6473e7486702f530a49f886b73195e4977734",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e764ad5918a099ebeb909ccff83893a714e497e1"
            },
            {
              "version": "ced6473e7486702f530a49f886b73195e4977734",
              "status": "affected",
              "versionType": "git",
              "lessThan": "abaedb68a769e6bf36836b55a2f49b531c5f3f7b"
            },
            {
              "version": "ced6473e7486702f530a49f886b73195e4977734",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8c3e8a6bdb5253b97ad532570f8b5db5f7a06407"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.10",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.10"
            },
            {
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}