{
  "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-2022-50434",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-50434",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-10-01T11:42:12.160Z",
    "updatedAt": "2026-05-11T19:19:25.292Z",
    "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": "blk-mq: fix possible memleak when register 'hctx' failed",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-mq: fix possible memleak when register 'hctx' failed\n\nThere's issue as follows when do fault injection test:\nunreferenced object 0xffff888132a9f400 (size 512):\n  comm \"insmod\", pid 308021, jiffies 4324277909 (age 509.733s)\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 08 f4 a9 32 81 88 ff ff  ...........2....\n    08 f4 a9 32 81 88 ff ff 00 00 00 00 00 00 00 00  ...2............\n  backtrace:\n    [<00000000e8952bb4>] kmalloc_node_trace+0x22/0xa0\n    [<00000000f9980e0f>] blk_mq_alloc_and_init_hctx+0x3f1/0x7e0\n    [<000000002e719efa>] blk_mq_realloc_hw_ctxs+0x1e6/0x230\n    [<000000004f1fda40>] blk_mq_init_allocated_queue+0x27e/0x910\n    [<00000000287123ec>] __blk_mq_alloc_disk+0x67/0xf0\n    [<00000000a2a34657>] 0xffffffffa2ad310f\n    [<00000000b173f718>] 0xffffffffa2af824a\n    [<0000000095a1dabb>] do_one_initcall+0x87/0x2a0\n    [<00000000f32fdf93>] do_init_module+0xdf/0x320\n    [<00000000cbe8541e>] load_module+0x3006/0x3390\n    [<0000000069ed1bdb>] __do_sys_finit_module+0x113/0x1b0\n    [<00000000a1a29ae8>] do_syscall_64+0x35/0x80\n    [<000000009cd878b0>] entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nFault injection context as follows:\n kobject_add\n blk_mq_register_hctx\n blk_mq_sysfs_register\n blk_register_queue\n device_add_disk\n null_add_dev.part.0 [null_blk]\n\nAs 'blk_mq_register_hctx' may already add some objects when failed halfway,\nbut there isn't do fallback, caller don't know which objects add failed.\nTo solve above issue just do fallback when add objects failed halfway in\n'blk_mq_register_hctx'.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "654870789c3c1b9763316ef1c71d7a449127b175"
            },
            {
              "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cb186eb47fb9dd327bdefa15f0c5fc55c53a40dd"
            },
            {
              "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "02bc8bc6eab03c84373281b85cb6e98747172ff7"
            },
            {
              "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "87fd18016a47ea8ae12641377a390172c4aa97a7"
            },
            {
              "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e8022da1fa2fdf2fa204b445dd3354e7a66d085a"
            },
            {
              "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "eff45bfbc25a2509a6362dea6e699e14083c693c"
            },
            {
              "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4b7fafa5f39b15c3a6ca3b95e534d05d6904cc95"
            },
            {
              "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "33e8a3f61814ea30615d0fafaf50477975d6c1ca"
            },
            {
              "version": "67aec14ce87fe25bdfff7dbf468556333df11c4e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4b7a21c57b14fbcd0e1729150189e5933f5088e9"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.16",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.16"
            },
            {
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}