{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2023-53229",
  "modified": "2026-10-09T11:39:44Z",
  "upstream": [
    "CVE-2023-53229"
  ],
  "published": "2025-09-15T14:26:11Z",
  "summary": "wifi: mac80211: fix invalid drv_sta_pre_rcu_remove calls for non-uploaded sta",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: fix invalid drv_sta_pre_rcu_remove calls for non-uploaded sta\n\nAvoid potential data corruption issues caused by uninitialized driver\nprivate data structures.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.21-1+rpt1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v6",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v7",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v7l",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v8",
            "binary_version": "1:6.1.21-1+rpt1"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.21-1+rpt1": {
            "linux_commit": "0afb5e98488aed7017b9bf321b575d0177feb7ed",
            "upstream_version": "6.1.21",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.24"
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-53229"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/db8d32d6b25fdb75c387daee496b96209d477780"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7e68d7c640d41d8a371b8f6c2d2682ea437cbe21"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a3593082e0dadf87f17ea4ca9fa0210caaa2aebf"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3fe20515449a80a177526d2ecd13b43f6ee41aeb"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/30c5a016a37a668c1c07442cf94de6e99ea7417a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/022c8320d9eb7394538bd716fa1a07a5ed92621b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/73752a39e2a6e38eee3ba90ece2ded598ea88006"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/12b220a6171faf10638ab683a975cadcf1a352d6"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T11:24:39Z",
    "severity": {
      "source": "kernel CNA",
      "cvss_v3_score": 7.1,
      "cvss_v3_severity": "High",
      "scenario": "AV:A - The bug is in mac80211 station teardown (`__sta_info_destroy_part1`) for WiFi soft-MAC drivers; an adjacent peer can trigger create/destroy of a non-uploaded STA via SoftAP auth timeout/deauth or a failed client assoc to an evil AP on the same radio segment.\nAC:L - On mt76 devices using legacy `sta_add` (mt7615/mt7915/mt7996), a STA at AUTH/NONE is not uploaded, and attacker-controlled auth-then-disconnect or assoc failure/timeout deterministically hits `drv_sta_pre_rcu_remove` with zeroed `drv_priv`\u2014no race or layout dependency.\nPR:N - Over-the-air station lifecycle on SoftAP/hotspot or association failure requires no account or capability on the victim host; frames and AP responses drive hostapd/mac80211 teardown without OS credentials.\nUI:N - Once SoftAP/hotspot is running (phones, routers, IoT), or the client auto-reconnects, the attacker triggers STA destroy solely by auth/assoc failure paths with no further victim action.\nS:U - Corruption is confined to the host kernel mac80211/driver station tables; there is no VM escape, IOMMU bypass, or other cross-authority boundary crossing.\nC:N - The defect only incorrectly NULLs an RCU wcid table entry (`dev->wcid[0]` for zeroed `drv_priv`); it provides no out-of-bounds read, UAF read, or other disclosure primitive.\nI:L - Calling `mt76_sta_pre_rcu_remove` on a non-uploaded STA corrupts driver state by clearing `wcid[0]` (often the global/first station entry)\u2014a bounded, fixed NULL write to one table slot, not an arbitrary write or control-flow hijack primitive.\nA:H - Corrupting the live wcid lookup table leaves the driver with inconsistent station state that can oops/panic on subsequent RX/TX status paths using the cleared entry, and an adjacent peer can repeat the auth/destroy cycle to sustain DoS."
    }
  }
}