CVE-2025-39891 (GCVE-0-2025-39891)
Vulnerability from cvelistv5
Published
2025-10-01 07:42
Modified
2025-11-03 17:44
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: Initialize the chan_stats array to zero The adapter->chan_stats[] array is initialized in mwifiex_init_channel_scan_gap() with vmalloc(), which doesn't zero out memory. The array is filled in mwifiex_update_chan_statistics() and then the user can query the data in mwifiex_cfg80211_dump_survey(). There are two potential issues here. What if the user calls mwifiex_cfg80211_dump_survey() before the data has been filled in. Also the mwifiex_update_chan_statistics() function doesn't necessarily initialize the whole array. Since the array was not initialized at the start that could result in an information leak. Also this array is pretty small. It's a maximum of 900 bytes so it's more appropriate to use kcalloc() instead vmalloc().
References
Impacted products
Vendor Product Version
Linux Linux Version: bf35443314acb43fa8a3f9f8046e14cbe178762b
Version: bf35443314acb43fa8a3f9f8046e14cbe178762b
Version: bf35443314acb43fa8a3f9f8046e14cbe178762b
Version: bf35443314acb43fa8a3f9f8046e14cbe178762b
Version: bf35443314acb43fa8a3f9f8046e14cbe178762b
Version: bf35443314acb43fa8a3f9f8046e14cbe178762b
Version: bf35443314acb43fa8a3f9f8046e14cbe178762b
Version: bf35443314acb43fa8a3f9f8046e14cbe178762b
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:44:27.798Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/marvell/mwifiex/cfg80211.c",
            "drivers/net/wireless/marvell/mwifiex/main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9eb0118b3470b4d2e4e3bbb1fc088b30c0285d65",
              "status": "affected",
              "version": "bf35443314acb43fa8a3f9f8046e14cbe178762b",
              "versionType": "git"
            },
            {
              "lessThan": "05daef0442d28350a1a0d6d0e2cab4a7a91df475",
              "status": "affected",
              "version": "bf35443314acb43fa8a3f9f8046e14cbe178762b",
              "versionType": "git"
            },
            {
              "lessThan": "acdf26a912190fc6746e2a890d7d0338190527b4",
              "status": "affected",
              "version": "bf35443314acb43fa8a3f9f8046e14cbe178762b",
              "versionType": "git"
            },
            {
              "lessThan": "32c124c9c03aa755cbaf60ef7f76afd918d47659",
              "status": "affected",
              "version": "bf35443314acb43fa8a3f9f8046e14cbe178762b",
              "versionType": "git"
            },
            {
              "lessThan": "9df29aa5637d94d24f7c5f054ef4feaa7b766111",
              "status": "affected",
              "version": "bf35443314acb43fa8a3f9f8046e14cbe178762b",
              "versionType": "git"
            },
            {
              "lessThan": "06616410a3e5e6cd1de5b7cbc668f1a7edeedad9",
              "status": "affected",
              "version": "bf35443314acb43fa8a3f9f8046e14cbe178762b",
              "versionType": "git"
            },
            {
              "lessThan": "5285b7009dc1e09d5bb9e05fae82e1a807882dbc",
              "status": "affected",
              "version": "bf35443314acb43fa8a3f9f8046e14cbe178762b",
              "versionType": "git"
            },
            {
              "lessThan": "0e20450829ca3c1dbc2db536391537c57a40fe0b",
              "status": "affected",
              "version": "bf35443314acb43fa8a3f9f8046e14cbe178762b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/marvell/mwifiex/cfg80211.c",
            "drivers/net/wireless/marvell/mwifiex/main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.19"
            },
            {
              "lessThan": "3.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.299",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.243",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.192",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.151",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.105",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.46",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.299",
                  "versionStartIncluding": "3.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.243",
                  "versionStartIncluding": "3.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.192",
                  "versionStartIncluding": "3.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.151",
                  "versionStartIncluding": "3.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.105",
                  "versionStartIncluding": "3.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.46",
                  "versionStartIncluding": "3.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.6",
                  "versionStartIncluding": "3.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "versionStartIncluding": "3.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: Initialize the chan_stats array to zero\n\nThe adapter-\u003echan_stats[] array is initialized in\nmwifiex_init_channel_scan_gap() with vmalloc(), which doesn\u0027t 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\u0027t 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\u0027s a maximum of 900 bytes so it\u0027s\nmore appropriate to use kcalloc() instead vmalloc()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-01T07:42:40.633Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9eb0118b3470b4d2e4e3bbb1fc088b30c0285d65"
        },
        {
          "url": "https://git.kernel.org/stable/c/05daef0442d28350a1a0d6d0e2cab4a7a91df475"
        },
        {
          "url": "https://git.kernel.org/stable/c/acdf26a912190fc6746e2a890d7d0338190527b4"
        },
        {
          "url": "https://git.kernel.org/stable/c/32c124c9c03aa755cbaf60ef7f76afd918d47659"
        },
        {
          "url": "https://git.kernel.org/stable/c/9df29aa5637d94d24f7c5f054ef4feaa7b766111"
        },
        {
          "url": "https://git.kernel.org/stable/c/06616410a3e5e6cd1de5b7cbc668f1a7edeedad9"
        },
        {
          "url": "https://git.kernel.org/stable/c/5285b7009dc1e09d5bb9e05fae82e1a807882dbc"
        },
        {
          "url": "https://git.kernel.org/stable/c/0e20450829ca3c1dbc2db536391537c57a40fe0b"
        }
      ],
      "title": "wifi: mwifiex: Initialize the chan_stats array to zero",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39891",
    "datePublished": "2025-10-01T07:42:40.633Z",
    "dateReserved": "2025-04-16T07:20:57.145Z",
    "dateUpdated": "2025-11-03T17:44:27.798Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-39891\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-10-01T08:15:31.570\",\"lastModified\":\"2025-11-03T18:16:52.070\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nwifi: mwifiex: Initialize the chan_stats array to zero\\n\\nThe adapter-\u003echan_stats[] array is initialized in\\nmwifiex_init_channel_scan_gap() with vmalloc(), which doesn\u0027t 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\u0027t 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\u0027s a maximum of 900 bytes so it\u0027s\\nmore appropriate to use kcalloc() instead vmalloc().\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/05daef0442d28350a1a0d6d0e2cab4a7a91df475\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/06616410a3e5e6cd1de5b7cbc668f1a7edeedad9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/0e20450829ca3c1dbc2db536391537c57a40fe0b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/32c124c9c03aa755cbaf60ef7f76afd918d47659\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5285b7009dc1e09d5bb9e05fae82e1a807882dbc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9df29aa5637d94d24f7c5f054ef4feaa7b766111\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9eb0118b3470b4d2e4e3bbb1fc088b30c0285d65\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/acdf26a912190fc6746e2a890d7d0338190527b4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.