{
  "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-2022-49776",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49776",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-05-01T14:09:12.572Z",
    "updatedAt": "2026-05-11T19:06:33.701Z",
    "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": "macvlan: enforce a consistent minimal mtu",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nmacvlan: enforce a consistent minimal mtu\n\nmacvlan should enforce a minimal mtu of 68, even at link creation.\n\nThis patch avoids the current behavior (which could lead to crashes\nin ipv6 stack if the link is brought up)\n\n$ ip link add macvlan1 link eno1 mtu 8 type macvlan  # This should fail !\n$ ip link sh dev macvlan1\n5: macvlan1@eno1: <BROADCAST,MULTICAST> mtu 8 qdisc noop\n    state DOWN mode DEFAULT group default qlen 1000\n    link/ether 02:47:6c:24:74:82 brd ff:ff:ff:ff:ff:ff\n$ ip link set macvlan1 mtu 67\nError: mtu less than device minimum.\n$ ip link set macvlan1 mtu 68\n$ ip link set macvlan1 mtu 8\nError: mtu less than device minimum.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "91572088e3fdbf4fe31cf397926d8b890fdb3237",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d2fee7d121d189c6dc905b727d60e7043a6655bb"
            },
            {
              "version": "91572088e3fdbf4fe31cf397926d8b890fdb3237",
              "status": "affected",
              "versionType": "git",
              "lessThan": "650137a7c0b2892df2e5b0bc112d7b09a78c93c8"
            },
            {
              "version": "91572088e3fdbf4fe31cf397926d8b890fdb3237",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a62aa84fe19eb24d083d600a074c009a0a66d4f3"
            },
            {
              "version": "91572088e3fdbf4fe31cf397926d8b890fdb3237",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e929ec98c0c3b10d9c07f3776df0c1a02d7a763e"
            },
            {
              "version": "91572088e3fdbf4fe31cf397926d8b890fdb3237",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e41cbf98df22d08402e65174d147cbb187fe1a33"
            },
            {
              "version": "91572088e3fdbf4fe31cf397926d8b890fdb3237",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2b055c719d8f94c15ec9b7659978133030c6a353"
            },
            {
              "version": "91572088e3fdbf4fe31cf397926d8b890fdb3237",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b64085b00044bdf3cd1c9825e9ef5b2e0feae91a"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.10",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.10"
            },
            {
              "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": "5.10.156",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}