{
  "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-2024-53057",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-53057",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-11-19T17:19:40.284Z",
    "updatedAt": "2026-10-15T00:58:34.250Z",
    "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": "net/sched: stop qdisc_tree_reduce_backlog on TC_H_ROOT",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: stop qdisc_tree_reduce_backlog on TC_H_ROOT\n\nIn qdisc_tree_reduce_backlog, Qdiscs with major handle ffff: are assumed\nto be either root or ingress. This assumption is bogus since it's valid\nto create egress qdiscs with major handle ffff:\nBudimir Markovic found that for qdiscs like DRR that maintain an active\nclass list, it will cause a UAF with a dangling class pointer.\n\nIn 066a3b5b2346, the concern was to avoid iterating over the ingress\nqdisc since its parent is itself. The proper fix is to stop when parent\nTC_H_ROOT is reached because the only way to retrieve ingress is when a\nhierarchy which does not contain a ffff: major handle call into\nqdisc_lookup with TC_H_MAJ(TC_H_ROOT).\n\nIn the scenario where major ffff: is an egress qdisc in any of the tree\nlevels, the updates will also propagate to TC_H_ROOT, which then the\niteration must stop.\n\n\n net/sched/sch_api.c | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "066a3b5b2346febf9a655b444567b7138e3bb939",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e7f9a6f97eb067599a74f3bcb6761976b0ed303e"
            },
            {
              "version": "066a3b5b2346febf9a655b444567b7138e3bb939",
              "status": "affected",
              "versionType": "git",
              "lessThan": "dbe778b08b5101df9e89bc06e0a3a7ecd2f4ef20"
            },
            {
              "version": "066a3b5b2346febf9a655b444567b7138e3bb939",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ce691c814bc7a3c30c220ffb5b7422715458fd9b"
            },
            {
              "version": "066a3b5b2346febf9a655b444567b7138e3bb939",
              "status": "affected",
              "versionType": "git",
              "lessThan": "05df1b1dff8f197f1c275b57ccb2ca33021df552"
            },
            {
              "version": "066a3b5b2346febf9a655b444567b7138e3bb939",
              "status": "affected",
              "versionType": "git",
              "lessThan": "580b3189c1972aff0f993837567d36392e9d981b"
            },
            {
              "version": "066a3b5b2346febf9a655b444567b7138e3bb939",
              "status": "affected",
              "versionType": "git",
              "lessThan": "597cf9748c3477bf61bc35f0634129f56764ad24"
            },
            {
              "version": "066a3b5b2346febf9a655b444567b7138e3bb939",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9995909615c3431a5304c1210face5f268d24dba"
            },
            {
              "version": "066a3b5b2346febf9a655b444567b7138e3bb939",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2e95c4384438adeaa772caa560244b1a2efef816"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.25",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.25"
            },
            {
              "version": "4.19.323",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.285",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.229",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.171",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.116",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.60",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.11.7",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.11.*"
            },
            {
              "version": "6.12",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}