{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-74650",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-74650"
  ],
  "published": "2026-08-22T15:32:12Z",
  "summary": "staging: rtl8723bs: fix OOB read in WMM_param_handler()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix OOB read in WMM_param_handler()\n\nWMM_param_handler() copies a fixed-size WMM parameter element out of a\nreceived information element without checking that the element is long\nenough, causing an out-of-bounds read for a short WMM IE.\n\nThe handler reads sizeof(struct WMM_para_element) (18) bytes at\npIE->data + 6, so it requires pIE->length to be at least 24\n(WLAN_WMM_LEN), but it never validates the length. Two of its three\ncallers reach it after matching only the WMM OUI: OnAssocRsp() in\nrtw_mlme_ext.c matches a 6-byte OUI, and join_cmd_hdl() matches a\n4-byte OUI, before calling the handler. A vendor-specific IE carrying\nthe WMM OUI but a length between 6 and 23, placed in an association\nresponse or in the IE blob handed to join_cmd_hdl(), passes the OUI\ncheck and then makes the memcmp() and memcpy() at pIE->data + 6 read\npast the end of the element. OnAssocRsp() parses a frame received from\nthe AP, so this is reachable from a remote peer.\n\nThe remaining caller in rtw_wlan_util.c already guards the handler with\n\"pIE->length == WLAN_WMM_LEN\". Move the equivalent check into the\nhandler itself so every caller is covered; the sibling IE handlers in\nthe same parsing loop (HT_caps_handler(), HT_info_handler(),\nERP_IE_handler()) likewise bound their accesses by pIE->length.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.183",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-74650"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5df2fd06567df5f178c8faae0bdaefd203618d21"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6cdca4c8b64c15a3ab9ad7a85f482e9519eadf93"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2bee6f7a0f0125238951e31da2e96d06fe359043"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1158b9931207392d6dd136aa0c4be18893b50fa1"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ce2399717de242344880044b91a20a712644fdfb"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e5b7610008f4e6a80c8b071aa77ddbd5e17ea472"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e429c6dfd5d2324cd866daaf4c29d5cfe4dea0e4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ae21407350151bddfd4fea7aa39bd0643c0ca9d3"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-27T12:40:42Z"
  }
}