{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "554c0a3abf216c991c5ebddcdb2c08689ecd290b"
            },
            {
              "fixed": "a94a643a80a84ceb8139061c3d6bf988d75e45a5"
            },
            {
              "fixed": "2131621986c62c86109ce4d84cf73a73757eb8a6"
            },
            {
              "fixed": "6f20d7b0ee47c470734a69379b0fc6647c519603"
            },
            {
              "fixed": "5d7812360abf3143afcbf5efe4ef242448fa1f28"
            },
            {
              "fixed": "46f66c16a95191d9aca07a72ae6b1252a244e26c"
            },
            {
              "fixed": "b9c4bf133c3c47e23baf4f5403b98a953bf58606"
            },
            {
              "fixed": "138cd190efd56ab36c9fdd8fef8749d06937f24b"
            },
            {
              "fixed": "5a752a616e756844388a1a45404db9fc29fec655"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.12.0"
            },
            {
              "fixed": "5.10.261"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.212"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.96"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.39"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64446.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix heap buffer overflow in rtw_cfg80211_set_wpa_ie()\n\nsupplicant_ie is a 256-byte array in struct security_priv. The WPA and\nWPA2 IE copy paths use:\n\n    memcpy(padapter-\u003esecuritypriv.supplicant_ie, \u0026pwpa[0], wpa_ielen + 2);\n\nwhere wpa_ielen is the raw IE length field (u8, 0-255). When a local user\nsupplies a connect request via nl80211 with a crafted WPA IE of length 255,\nwpa_ielen + 2 equals 257, overflowing the 256-byte buffer by one byte into\nthe adjacent last_mic_err_time field.\n\nrtw_parse_wpa_ie() does not prevent this: its length consistency check\ncompares *(wpa_ie+1) against (u8)(wpa_ie_len-2), which is (u8)(255) == 255\nwhen wpa_ie_len = 257, so the check passes silently.\n\nAdd explicit bounds checks for both the WPA and WPA2 paths before the\nmemcpy, rejecting any IE whose total size (wpa_ielen + 2) exceeds the\nsupplicant_ie buffer.",
  "id": "CVE-2026-64446",
  "modified": "2026-07-27T03:56:19.483850615Z",
  "published": "2026-07-25T08:51:17.402Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/138cd190efd56ab36c9fdd8fef8749d06937f24b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2131621986c62c86109ce4d84cf73a73757eb8a6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/46f66c16a95191d9aca07a72ae6b1252a244e26c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5a752a616e756844388a1a45404db9fc29fec655"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5d7812360abf3143afcbf5efe4ef242448fa1f28"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6f20d7b0ee47c470734a69379b0fc6647c519603"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a94a643a80a84ceb8139061c3d6bf988d75e45a5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b9c4bf133c3c47e23baf4f5403b98a953bf58606"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64446.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64446"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "staging: rtl8723bs: fix heap buffer overflow in rtw_cfg80211_set_wpa_ie()"
}