{
  "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-2025-39891",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-39891",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-10-01T07:42:40.633Z",
    "updatedAt": "2026-05-11T21:38:25.474Z",
    "importedAt": "2026-10-24T01:57:34.152Z",
    "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": "wifi: mwifiex: Initialize the chan_stats array to zero",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: Initialize the chan_stats array to zero\n\nThe adapter->chan_stats[] array is initialized in\nmwifiex_init_channel_scan_gap() with vmalloc(), which doesn't zero out\nmemory.  The array is filled in mwifiex_update_chan_statistics()\nand then the user can query the data in mwifiex_cfg80211_dump_survey().\n\nThere are two potential issues here.  What if the user calls\nmwifiex_cfg80211_dump_survey() before the data has been filled in.\nAlso the mwifiex_update_chan_statistics() function doesn't necessarily\ninitialize the whole array.  Since the array was not initialized at\nthe start that could result in an information leak.\n\nAlso this array is pretty small.  It's a maximum of 900 bytes so it's\nmore appropriate to use kcalloc() instead vmalloc().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "bf35443314acb43fa8a3f9f8046e14cbe178762b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9eb0118b3470b4d2e4e3bbb1fc088b30c0285d65"
            },
            {
              "version": "bf35443314acb43fa8a3f9f8046e14cbe178762b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "05daef0442d28350a1a0d6d0e2cab4a7a91df475"
            },
            {
              "version": "bf35443314acb43fa8a3f9f8046e14cbe178762b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "acdf26a912190fc6746e2a890d7d0338190527b4"
            },
            {
              "version": "bf35443314acb43fa8a3f9f8046e14cbe178762b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "32c124c9c03aa755cbaf60ef7f76afd918d47659"
            },
            {
              "version": "bf35443314acb43fa8a3f9f8046e14cbe178762b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9df29aa5637d94d24f7c5f054ef4feaa7b766111"
            },
            {
              "version": "bf35443314acb43fa8a3f9f8046e14cbe178762b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "06616410a3e5e6cd1de5b7cbc668f1a7edeedad9"
            },
            {
              "version": "bf35443314acb43fa8a3f9f8046e14cbe178762b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5285b7009dc1e09d5bb9e05fae82e1a807882dbc"
            },
            {
              "version": "bf35443314acb43fa8a3f9f8046e14cbe178762b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0e20450829ca3c1dbc2db536391537c57a40fe0b"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.19",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.19"
            },
            {
              "version": "5.4.299",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.243",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.192",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.151",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.105",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.46",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.16.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.16.*"
            },
            {
              "version": "6.17",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}