github - ghsa-prff-pf2c-76w4

GHSA-PRFF-PF2C-76W4

Vulnerability from github – Published: 2025-10-04 09:30 – Updated: 2025-10-04 09:30

Details

In the Linux kernel, the following vulnerability has been resolved:

wifi: wilc1000: avoid buffer overflow in WID string configuration

Fix the following copy overflow warning identified by Smatch checker.

drivers/net/wireless/microchip/wilc1000/wlan_cfg.c:184 wilc_wlan_parse_response_frame() error: '__memcpy()' 'cfg->s[i]->str' copy overflow (512 vs 65537)

This patch introduces size check before accessing the memory buffer. The checks are base on the WID type of received data from the firmware. For WID string configuration, the size limit is determined by individual element size in 'struct wilc_cfg_str_vals' that is maintained in 'len' field of 'struct wilc_cfg_str'.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-39952"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-04T08:15:48Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wilc1000: avoid buffer overflow in WID string configuration\n\nFix the following copy overflow warning identified by Smatch checker.\n\n drivers/net/wireless/microchip/wilc1000/wlan_cfg.c:184 wilc_wlan_parse_response_frame()\n        error: \u0027__memcpy()\u0027 \u0027cfg-\u003es[i]-\u003estr\u0027 copy overflow (512 vs 65537)\n\nThis patch introduces size check before accessing the memory buffer.\nThe checks are base on the WID type of received data from the firmware.\nFor WID string configuration, the size limit is determined by individual\nelement size in \u0027struct wilc_cfg_str_vals\u0027 that is maintained in \u0027len\u0027 field\nof \u0027struct wilc_cfg_str\u0027.",
  "id": "GHSA-prff-pf2c-76w4",
  "modified": "2025-10-04T09:30:21Z",
  "published": "2025-10-04T09:30:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39952"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2203ef417044b10a8563ade6a17c74183745d72e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6085291a1a5865d4ad70f0e5812d524ebd5d1711"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ae50f8562306a7ea1cf3c9722f97ee244f974729"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fe9e4d0c39311d0f97b024147a0d155333f388b5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-39952 (GCVE-0-2025-39952)

Vulnerability from cvelistv5 – Published: 2025-10-04 07:31 – Updated: 2025-10-04 07:31

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: avoid buffer overflow in WID string configuration Fix the following copy overflow warning identified by Smatch checker. drivers/net/wireless/microchip/wilc1000/wlan_cfg.c:184 wilc_wlan_parse_response_frame() error: '__memcpy()' 'cfg->s[i]->str' copy overflow (512 vs 65537) This patch introduces size check before accessing the memory buffer. The checks are base on the WID type of received data from the firmware. For WID string configuration, the size limit is determined by individual element size in 'struct wilc_cfg_str_vals' that is maintained in 'len' field of 'struct wilc_cfg_str'.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/6085291a1a5865d4a…
	https://git.kernel.org/stable/c/2203ef417044b10a8…
	https://git.kernel.org/stable/c/ae50f8562306a7ea1…
	https://git.kernel.org/stable/c/fe9e4d0c39311d0f9…

Impacted products

Vendor

Product

Version

Linux

Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6085291a1a5865d4ad70f0e5812d524ebd5d1711 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2203ef417044b10a8563ade6a17c74183745d72e (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ae50f8562306a7ea1cf3c9722f97ee244f974729 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < fe9e4d0c39311d0f97b024147a0d155333f388b5 (git)

Linux

Unaffected: 6.6.108 , ≤ 6.6.* (semver)
Unaffected: 6.12.49 , ≤ 6.12.* (semver)
Unaffected: 6.16.9 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/microchip/wilc1000/wlan_cfg.c",
            "drivers/net/wireless/microchip/wilc1000/wlan_cfg.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6085291a1a5865d4ad70f0e5812d524ebd5d1711",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "2203ef417044b10a8563ade6a17c74183745d72e",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "ae50f8562306a7ea1cf3c9722f97ee244f974729",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "fe9e4d0c39311d0f97b024147a0d155333f388b5",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/microchip/wilc1000/wlan_cfg.c",
            "drivers/net/wireless/microchip/wilc1000/wlan_cfg.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.108",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.49",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.9",
              "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": "6.6.108",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.49",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wilc1000: avoid buffer overflow in WID string configuration\n\nFix the following copy overflow warning identified by Smatch checker.\n\n drivers/net/wireless/microchip/wilc1000/wlan_cfg.c:184 wilc_wlan_parse_response_frame()\n        error: \u0027__memcpy()\u0027 \u0027cfg-\u003es[i]-\u003estr\u0027 copy overflow (512 vs 65537)\n\nThis patch introduces size check before accessing the memory buffer.\nThe checks are base on the WID type of received data from the firmware.\nFor WID string configuration, the size limit is determined by individual\nelement size in \u0027struct wilc_cfg_str_vals\u0027 that is maintained in \u0027len\u0027 field\nof \u0027struct wilc_cfg_str\u0027."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-04T07:31:12.445Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6085291a1a5865d4ad70f0e5812d524ebd5d1711"
        },
        {
          "url": "https://git.kernel.org/stable/c/2203ef417044b10a8563ade6a17c74183745d72e"
        },
        {
          "url": "https://git.kernel.org/stable/c/ae50f8562306a7ea1cf3c9722f97ee244f974729"
        },
        {
          "url": "https://git.kernel.org/stable/c/fe9e4d0c39311d0f97b024147a0d155333f388b5"
        }
      ],
      "title": "wifi: wilc1000: avoid buffer overflow in WID string configuration",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39952",
    "datePublished": "2025-10-04T07:31:12.445Z",
    "dateReserved": "2025-04-16T07:20:57.148Z",
    "dateUpdated": "2025-10-04T07:31:12.445Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-PRFF-PF2C-76W4

CVE-2025-39952 (GCVE-0-2025-39952)

Tags

Sightings

Nomenclature