{
  "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-2022-49837",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49837",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-05-01T14:09:54.141Z",
    "updatedAt": "2026-05-11T19:07:44.113Z",
    "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": "bpf: Fix memory leaks in __check_func_call",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix memory leaks in __check_func_call\n\nkmemleak reports this issue:\n\nunreferenced object 0xffff88817139d000 (size 2048):\n  comm \"test_progs\", pid 33246, jiffies 4307381979 (age 45851.820s)\n  hex dump (first 32 bytes):\n    01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace:\n    [<0000000045f075f0>] kmalloc_trace+0x27/0xa0\n    [<0000000098b7c90a>] __check_func_call+0x316/0x1230\n    [<00000000b4c3c403>] check_helper_call+0x172e/0x4700\n    [<00000000aa3875b7>] do_check+0x21d8/0x45e0\n    [<000000001147357b>] do_check_common+0x767/0xaf0\n    [<00000000b5a595b4>] bpf_check+0x43e3/0x5bc0\n    [<0000000011e391b1>] bpf_prog_load+0xf26/0x1940\n    [<0000000007f765c0>] __sys_bpf+0xd2c/0x3650\n    [<00000000839815d6>] __x64_sys_bpf+0x75/0xc0\n    [<00000000946ee250>] do_syscall_64+0x3b/0x90\n    [<0000000000506b7f>] entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nThe root case here is: In function prepare_func_exit(), the callee is\nnot released in the abnormal scenario after \"state->curframe--;\". To\nfix, move \"state->curframe--;\" to the very bottom of the function,\nright when we free callee and reset frame[] pointer to NULL, as Andrii\nsuggested.\n\nIn addition, function __check_func_call() has a similar problem. In\nthe abnormal scenario before \"state->curframe++;\", the callee also\nshould be released by free_func_state().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "fd978bf7fd312581a7ca454a991f0ffb34c4204b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d4944497827a3d14bc5a26dbcfb7433eb5a956c0"
            },
            {
              "version": "fd978bf7fd312581a7ca454a991f0ffb34c4204b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "83946d772e756734a900ef99dbe0aeda506adf37"
            },
            {
              "version": "fd978bf7fd312581a7ca454a991f0ffb34c4204b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "eb86559a691cea5fa63e57a03ec3dc9c31e97955"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.20",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.20"
            },
            {
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}