{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "554c0a3abf216c991c5ebddcdb2c08689ecd290b"
            },
            {
              "fixed": "5df2fd06567df5f178c8faae0bdaefd203618d21"
            },
            {
              "fixed": "6cdca4c8b64c15a3ab9ad7a85f482e9519eadf93"
            },
            {
              "fixed": "2bee6f7a0f0125238951e31da2e96d06fe359043"
            },
            {
              "fixed": "1158b9931207392d6dd136aa0c4be18893b50fa1"
            },
            {
              "fixed": "ce2399717de242344880044b91a20a712644fdfb"
            },
            {
              "fixed": "e5b7610008f4e6a80c8b071aa77ddbd5e17ea472"
            },
            {
              "fixed": "e429c6dfd5d2324cd866daaf4c29d5cfe4dea0e4"
            },
            {
              "fixed": "ae21407350151bddfd4fea7aa39bd0643c0ca9d3"
            }
          ],
          "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": "5.10.267"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.216"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.183"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.152"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.104"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.45"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74650.json"
  },
  "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-\u003edata + 6, so it requires pIE-\u003elength 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-\u003edata + 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-\u003elength == 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-\u003elength.",
  "id": "CVE-2026-74650",
  "modified": "2026-08-28T03:30:54.009060363Z",
  "published": "2026-08-22T15:32:26.333Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1158b9931207392d6dd136aa0c4be18893b50fa1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2bee6f7a0f0125238951e31da2e96d06fe359043"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5df2fd06567df5f178c8faae0bdaefd203618d21"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6cdca4c8b64c15a3ab9ad7a85f482e9519eadf93"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ae21407350151bddfd4fea7aa39bd0643c0ca9d3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ce2399717de242344880044b91a20a712644fdfb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e429c6dfd5d2324cd866daaf4c29d5cfe4dea0e4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e5b7610008f4e6a80c8b071aa77ddbd5e17ea472"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74650.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74650"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "staging: rtl8723bs: fix OOB read in WMM_param_handler()"
}