{
  "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-2023-53590",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53590",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-10-04T15:44:04.733Z",
    "updatedAt": "2026-05-23T15:29:48.061Z",
    "importedAt": "2026-10-24T01:57:03.413Z",
    "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": "sctp: add a refcnt in sctp_stream_priorities to avoid a nested loop",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: add a refcnt in sctp_stream_priorities to avoid a nested loop\n\nWith this refcnt added in sctp_stream_priorities, we don't need to\ntraverse all streams to check if the prio is used by other streams\nwhen freeing one stream's prio in sctp_sched_prio_free_sid(). This\ncan avoid a nested loop (up to 65535 * 65535), which may cause a\nstuck as Ying reported:\n\n    watchdog: BUG: soft lockup - CPU#23 stuck for 26s! [ksoftirqd/23:136]\n    Call Trace:\n     <TASK>\n     sctp_sched_prio_free_sid+0xab/0x100 [sctp]\n     sctp_stream_free_ext+0x64/0xa0 [sctp]\n     sctp_stream_free+0x31/0x50 [sctp]\n     sctp_association_free+0xa5/0x200 [sctp]\n\nNote that it doesn't need to use refcount_t type for this counter,\nas its accessing is always protected under the sock lock.\n\nv1->v2:\n - add a check in sctp_sched_prio_set to avoid the possible prio_head\n   refcnt overflow.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "a7555681e50bdebed2c40ff7404ee73c2e932993",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cec326443f01283ef68ea00c06ea073b1835a562"
            },
            {
              "version": "176ee6c673ccd118e9392fd2dbb165423bdb99ca",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8ee401f89cdb10f39098c0656d695b2bc4052100"
            },
            {
              "version": "0dfb9a566327182387c90100ea54d8426cee8c67",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bf5540cbd20e2dae2c81ab9b31deef41ef147d0a"
            },
            {
              "version": "9ed7bfc79542119ac0a9e1ce8a2a5285e43433e9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "03c3a5584a0a29821e59b7834635ce823050caaa"
            },
            {
              "version": "9ed7bfc79542119ac0a9e1ce8a2a5285e43433e9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6d529928ea212127851a2df8c40d822237ca946b"
            },
            {
              "version": "9ed7bfc79542119ac0a9e1ce8a2a5285e43433e9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "68ba44639537de6f91fe32783766322d41848127"
            },
            {
              "version": "fa20f88271259d42ebe66f0a8c4c20199e888c99",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.4.226",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.4.235"
            },
            {
              "version": "5.10.158",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.173"
            },
            {
              "version": "5.15.82",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.100"
            },
            {
              "version": "6.0.12",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.1",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.1"
            },
            {
              "version": "5.4.235",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.173",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.100",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.18",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.2.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.2.*"
            },
            {
              "version": "6.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}