{
  "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-2022-49853",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49853",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-05-01T14:10:07.726Z",
    "updatedAt": "2026-05-11T19:08:01.634Z",
    "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": "net: macvlan: fix memory leaks of macvlan_common_newlink",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: macvlan: fix memory leaks of macvlan_common_newlink\n\nkmemleak reports memory leaks in macvlan_common_newlink, as follows:\n\n ip link add link eth0 name .. type macvlan mode source macaddr add\n <MAC-ADDR>\n\nkmemleak reports:\n\nunreferenced object 0xffff8880109bb140 (size 64):\n  comm \"ip\", pid 284, jiffies 4294986150 (age 430.108s)\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 b8 aa 5a 12 80 88 ff ff  ..........Z.....\n    80 1b fa 0d 80 88 ff ff 1e ff ac af c7 c1 6b 6b  ..............kk\n  backtrace:\n    [<ffffffff813e06a7>] kmem_cache_alloc_trace+0x1c7/0x300\n    [<ffffffff81b66025>] macvlan_hash_add_source+0x45/0xc0\n    [<ffffffff81b66a67>] macvlan_changelink_sources+0xd7/0x170\n    [<ffffffff81b6775c>] macvlan_common_newlink+0x38c/0x5a0\n    [<ffffffff81b6797e>] macvlan_newlink+0xe/0x20\n    [<ffffffff81d97f8f>] __rtnl_newlink+0x7af/0xa50\n    [<ffffffff81d98278>] rtnl_newlink+0x48/0x70\n    ...\n\nIn the scenario where the macvlan mode is configured as 'source',\nmacvlan_changelink_sources() will be execured to reconfigure list of\nremote source mac addresses, at the same time, if register_netdevice()\nreturn an error, the resource generated by macvlan_changelink_sources()\nis not cleaned up.\n\nUsing this patch, in the case of an error, it will execute\nmacvlan_flush_sources() to ensure that the resource is cleaned up.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "aa5fd0fb77486b8a6764ead8627baa14790e4280",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9f288e338be206713d79b29144c27fca4503c39b"
            },
            {
              "version": "aa5fd0fb77486b8a6764ead8627baa14790e4280",
              "status": "affected",
              "versionType": "git",
              "lessThan": "21d3a8b6a1e39e7529ce9de07316ee13a63f305b"
            },
            {
              "version": "aa5fd0fb77486b8a6764ead8627baa14790e4280",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a81b44d1df1f07f00c0dcc0a0b3d2fa24a46289e"
            },
            {
              "version": "aa5fd0fb77486b8a6764ead8627baa14790e4280",
              "status": "affected",
              "versionType": "git",
              "lessThan": "685e73e3f7a9fb75cbf049a9d0b7c45cc6b57b2e"
            },
            {
              "version": "aa5fd0fb77486b8a6764ead8627baa14790e4280",
              "status": "affected",
              "versionType": "git",
              "lessThan": "956e0216a19994443c90ba2ea6b0b284c9c4f9cb"
            },
            {
              "version": "aa5fd0fb77486b8a6764ead8627baa14790e4280",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a8d67367ab33604326cc37ab44fd1801bf5691ba"
            },
            {
              "version": "aa5fd0fb77486b8a6764ead8627baa14790e4280",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9ea003c4671b2fc455320ecf6d4a43b0a3c1878a"
            },
            {
              "version": "aa5fd0fb77486b8a6764ead8627baa14790e4280",
              "status": "affected",
              "versionType": "git",
              "lessThan": "23569b5652ee8e8e55a12f7835f59af6f3cefc30"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.9",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.9"
            },
            {
              "version": "4.9.334",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.9.*"
            },
            {
              "version": "4.14.300",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.267",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.225",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.155",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.79",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.0.9",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.0.*"
            },
            {
              "version": "6.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}