{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-71234",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-71234"
  ],
  "published": "2026-02-18T14:54:17Z",
  "summary": "wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add\n\nThe driver does not set hw->sta_data_size, which causes mac80211 to\nallocate insufficient space for driver private station data in\n__sta_info_alloc(). When rtl8xxxu_sta_add() accesses members of\nstruct rtl8xxxu_sta_info through sta->drv_priv, this results in a\nslab-out-of-bounds write.\n\nKASAN report on RISC-V (VisionFive 2) with RTL8192EU adapter:\n\n  BUG: KASAN: slab-out-of-bounds in rtl8xxxu_sta_add+0x31c/0x346\n  Write of size 8 at addr ffffffd6d3e9ae88 by task kworker/u16:0/12\n\nSet hw->sta_data_size to sizeof(struct rtl8xxxu_sta_info) during\nprobe, similar to how hw->vif_data_size is configured. This ensures\nmac80211 allocates sufficient space for the driver's per-station\nprivate data.\n\nTested on StarFive VisionFive 2 v1.2A board.",
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-71234"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5d810ba377eddee95d30766d360a14efbb3d1872"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/116f7bd8160c6b37d1c6939385abf90f6f6ed2f5"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/9a0f3fa6ecd0c9c32dbc367a57482bbf7c7d25bf"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/86c946bcc00f6390ef65e9614ae60a9377e454f8"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T12:19:11Z"
  }
}