{
  "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-2026-89854",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-89854",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-16T10:31:27.906Z",
    "updatedAt": "2026-10-19T08:53:47.075Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "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": "scsi: qla2xxx: Fix cs84xx use-after-free on host teardown",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Fix cs84xx use-after-free on host teardown\n\nqla84xx_put_chip() drops the last reference to ha->cs84xx and frees it via\n__qla84xx_chip_release() without clearing ha->cs84xx. During teardown it ran\nbefore scsi_remove_host(), which is what removes the 84xx_fw_version host\nsysfs attribute. A concurrent read of that attribute in the window between\nthe two calls executes qla24xx_84xx_fw_version_show(), which dereferences\nthe freed ha->cs84xx, resulting in a use-after-free.\n\nMove qla84xx_put_chip() to after scsi_remove_host() in both\nqla2x00_remove_one() and qla2x00_disable_board_on_pci_error(). Once\nscsi_remove_host() returns, the sysfs attribute is gone and kernfs has\ndrained any in-flight show(), so no reader can touch cs84xx; the put still\nruns before the host and ha are freed.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "fe1b806f4f7172b1eae18ddeebb7d8fb351043f7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8c1ebcade6aac58137f2645b579894301febabf3"
            },
            {
              "version": "fe1b806f4f7172b1eae18ddeebb7d8fb351043f7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1d8bbc4344b9367d9d54731475d745fbc9ea28f2"
            },
            {
              "version": "fe1b806f4f7172b1eae18ddeebb7d8fb351043f7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2c3b17ee53f034936f7398dbf4d143e608b7c35c"
            },
            {
              "version": "fe1b806f4f7172b1eae18ddeebb7d8fb351043f7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ae09260be7454ed7630a913f147591a25e3a9d09"
            },
            {
              "version": "fe1b806f4f7172b1eae18ddeebb7d8fb351043f7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fcf0804dfe05862007189ac9dc4dc2063be36de1"
            },
            {
              "version": "fe1b806f4f7172b1eae18ddeebb7d8fb351043f7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8286a9095fb59751fba171afa2b4f590271c87d5"
            },
            {
              "version": "fe1b806f4f7172b1eae18ddeebb7d8fb351043f7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "122bf170c94a3797531b12fee580639a5dc893ed"
            },
            {
              "version": "fe1b806f4f7172b1eae18ddeebb7d8fb351043f7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "33d102102d925357c5fd172dd6672a27d74b3215"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.14",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.14"
            },
            {
              "version": "5.10.270",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.221",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.188",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.157",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.110",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.51",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}