{
  "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-2024-50041",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-50041",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-10-21T19:39:40.435Z",
    "updatedAt": "2026-08-05T11:41:11.870Z",
    "importedAt": "2026-10-24T01:57:20.494Z",
    "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": "i40e: Fix macvlan leak by synchronizing access to mac_filter_hash",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ni40e: Fix macvlan leak by synchronizing access to mac_filter_hash\n\nThis patch addresses a macvlan leak issue in the i40e driver caused by\nconcurrent access to vsi->mac_filter_hash. The leak occurs when multiple\nthreads attempt to modify the mac_filter_hash simultaneously, leading to\ninconsistent state and potential memory leaks.\n\nTo fix this, we now wrap the calls to i40e_del_mac_filter() and zeroing\nvf->default_lan_addr.addr with spin_lock/unlock_bh(&vsi->mac_filter_hash_lock),\nensuring atomic operations and preventing concurrent access.\n\nAdditionally, we add lockdep_assert_held(&vsi->mac_filter_hash_lock) in\ni40e_add_mac_filter() to help catch similar issues in the future.\n\nReproduction steps:\n1. Spawn VFs and configure port vlan on them.\n2. Trigger concurrent macvlan operations (e.g., adding and deleting\n\tportvlan and/or mac filters).\n3. Observe the potential memory leak and inconsistent state in the\n\tmac_filter_hash.\n\nThis synchronization ensures the integrity of the mac_filter_hash and prevents\nthe described leak.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "ddec6cbbe22781d17965f1e6386e5a6363c058d2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9db6ce9e2738b05a3672aff4d42169cf3bb5a3e3"
            },
            {
              "version": "fed0d9f13266a22ce1fc9a97521ef9cdc6271a23",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9a9747288ba0a9ad4f5c9877f18dd245770ad64e"
            },
            {
              "version": "fed0d9f13266a22ce1fc9a97521ef9cdc6271a23",
              "status": "affected",
              "versionType": "git",
              "lessThan": "703c4d820b31bcadf465288d5746c53445f02a55"
            },
            {
              "version": "fed0d9f13266a22ce1fc9a97521ef9cdc6271a23",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8831abff1bd5b6bc8224f0c0671f46fbd702b5b2"
            },
            {
              "version": "fed0d9f13266a22ce1fc9a97521ef9cdc6271a23",
              "status": "affected",
              "versionType": "git",
              "lessThan": "dac6c7b3d33756d6ce09f00a96ea2ecd79fae9fb"
            },
            {
              "version": "8bfcbaa379694e05290fcff21f4bd40afcf88776",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.15.54",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.168"
            },
            {
              "version": "5.18.11",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.19"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.19",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.19"
            },
            {
              "version": "5.15.168",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.113",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.57",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.11.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.11.*"
            },
            {
              "version": "6.12",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}