{
  "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-2026-98200",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-98200",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-10-06T08:44:38.289Z",
    "updatedAt": "2026-10-19T09:15:31.295Z",
    "importedAt": "2026-10-24T01:58:41.756Z",
    "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": "hwmon: (hp-wmi-sensors) Fix use-after-free in fungible_show()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (hp-wmi-sensors) Fix use-after-free in fungible_show()\n\nnsensor->current_state is dynamically replaced as the sensor's state\nchanges. update_numeric_sensor_from_wobj() does this by freeing the\nold string and installing a new one:\n\n\tif (strcmp(trimmed, nsensor->current_state)) {\n\t\tnew_string = hp_wmi_strdup(dev, trimmed);\n\t\tif (new_string) {\n\t\t\tdevm_kfree(dev, nsensor->current_state);\n\t\t\tnsensor->current_state = new_string;\n\t\t}\n\t}\n\nThis function is only ever called from hp_wmi_update_info() while\nstate->lock is held, so the free-and-replace itself is properly\nserialized against concurrent updates.\n\nfungible_show(), however, reads the same pointer after the lock has\nalready been dropped:\n\n\terr = hp_wmi_update_info(state, info);\n\tif (err)\n\t\treturn err;\n\n\tswitch (prop) {\n\t...\n\tcase HP_WMI_PROPERTY_CURRENT_STATE:\n\t\tseq_printf(seqf, \"%s\\n\", nsensor->current_state);\n\t\tbreak;\n\nhp_wmi_update_info() takes state->lock internally and releases it\nbefore returning, so by the time fungible_show() dereferences\nnsensor->current_state in seq_printf(), no lock is held. Two\nprocesses reading a sensor's current_state debugfs entry at\noverlapping times (or one reading it while another read of the same\nsensor triggers a refresh) can race: one thread's seq_printf() can\nbe part-way through printing the string at the moment another\nthread's call into update_numeric_sensor_from_wobj() frees it with\ndevm_kfree() and installs a new pointer, causing a use-after-free\nread.\n\nTake state->lock around the read in fungible_show() as well, so it\ncan never run concurrently with the free-and-replace in\nupdate_numeric_sensor_from_wobj().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "23902f98f8d4811ab84dde6419569a5b374f8122",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b6b2a638aa36c441b2c8d0b6bd8ed2bb9701e795"
            },
            {
              "version": "23902f98f8d4811ab84dde6419569a5b374f8122",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f59ecfd2c58bace39538f3fff7f43788b3fdb539"
            },
            {
              "version": "23902f98f8d4811ab84dde6419569a5b374f8122",
              "status": "affected",
              "versionType": "git",
              "lessThan": "72c85149794a1ccf8d718ffed1521106b5d31968"
            },
            {
              "version": "23902f98f8d4811ab84dde6419569a5b374f8122",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9c1e65bc79ff104914b11e6ad972139296ec86fe"
            },
            {
              "version": "23902f98f8d4811ab84dde6419569a5b374f8122",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e6cb0b4d4ecb8e71fd2200d907ab2e9663356f69"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.5",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.5"
            },
            {
              "version": "6.6.158",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.112",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.54",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}