{
  "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-2022-48809",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-48809",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2024-07-16T11:43:59.757Z",
    "updatedAt": "2026-05-11T18:47:33.230Z",
    "importedAt": "2026-10-24T01:56:45.230Z",
    "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: fix a memleak when uncloning an skb dst and its metadata",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix a memleak when uncloning an skb dst and its metadata\n\nWhen uncloning an skb dst and its associated metadata, a new\ndst+metadata is allocated and later replaces the old one in the skb.\nThis is helpful to have a non-shared dst+metadata attached to a specific\nskb.\n\nThe issue is the uncloned dst+metadata is initialized with a refcount of\n1, which is increased to 2 before attaching it to the skb. When\ntun_dst_unclone returns, the dst+metadata is only referenced from a\nsingle place (the skb) while its refcount is 2. Its refcount will never\ndrop to 0 (when the skb is consumed), leading to a memory leak.\n\nFix this by removing the call to dst_hold in tun_dst_unclone, as the\ndst+metadata refcount is already 1.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "fc4099f17240767554ff3a73977acb78ef615404",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4ac84498fbe84a00e7aef185e2bb3e40ce71eca4"
            },
            {
              "version": "fc4099f17240767554ff3a73977acb78ef615404",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c1ff27d100e2670b03cbfddb9117e5f9fc672540"
            },
            {
              "version": "fc4099f17240767554ff3a73977acb78ef615404",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0be943916d781df2b652793bb2d3ae4f9624c10a"
            },
            {
              "version": "fc4099f17240767554ff3a73977acb78ef615404",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a80817adc2a4c1ba26a7aa5f3ed886e4a18dff88"
            },
            {
              "version": "fc4099f17240767554ff3a73977acb78ef615404",
              "status": "affected",
              "versionType": "git",
              "lessThan": "00e6d6c3bc14dfe32824e2c515f0e0f2d6ecf2f1"
            },
            {
              "version": "fc4099f17240767554ff3a73977acb78ef615404",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fdcb263fa5cda15b8cb24a641fa2718c47605314"
            },
            {
              "version": "fc4099f17240767554ff3a73977acb78ef615404",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8b1087b998e273f07be13dcb5f3ca4c309c7f108"
            },
            {
              "version": "fc4099f17240767554ff3a73977acb78ef615404",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9eeabdf17fa0ab75381045c867c370f4cc75a613"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.3",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.3"
            },
            {
              "version": "4.9.302",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.9.*"
            },
            {
              "version": "4.14.267",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.230",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.180",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.101",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.24",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "5.16.10",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.16.*"
            },
            {
              "version": "5.17",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}