{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-98307",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-98307"
  ],
  "published": "2026-10-06T08:47:10Z",
  "summary": "wifi: ath11k: cleanup arsta in ath11k_mac_peer_cleanup_all()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: cleanup arsta in ath11k_mac_peer_cleanup_all()\n\nWhen mac80211 removes a sta, it calls .sta_state() which in turn calls\nath11k_mac_station_remove(). In that function we clean up both peers &\narsta related resources.\n\nBut when the firmware crashes, ath11k calls ieee80211_restart_hw(), which\nassumes that all driver related resources are cleaned up beforehand. This\ncleanup is supposedly done by ath11k_mac_peer_cleanup_all() but does not\nin fact free arsta->rx_stats / tx_stats.\n\nExtract the arsta cleanup from ath11k_mac_station_remove() into a\nnew ath11k_mac_station_cleanup() and call it from both there and\nath11k_mac_peer_cleanup_all().\n\nThis should handle kmemleaks reports like:\n\tunreferenced object 0xffffff801ae66400 (size 1024):\n\t  comm \"hostapd\", pid 1306, jiffies 4295011565\n\t  hex dump (first 32 bytes):\n\t    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n\t    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n\t  backtrace (crc d61c08ec):\n\t    kmemleak_alloc+0x3c/0x50\n\t    __kmalloc_cache_noprof+0x2b0/0x3e0\n\t    ath11k_mac_op_sta_state+0x1dc/0xb10\n\t    drv_sta_state+0xac/0x6f8\n\t    sta_info_insert_rcu+0x314/0x5e0\n\t    sta_info_insert+0x14/0x38\n\t    ieee80211_add_station+0x10c/0x1a0\n\t    nl80211_new_station+0x3e8/0x680\n\t    genl_family_rcv_msg_doit+0xc0/0x120\n\t    genl_rcv_msg+0x1b4/0x258\n\t    netlink_rcv_skb+0x4c/0x108\n\t    genl_rcv+0x38/0x60\n\t    netlink_unicast+0x190/0x278\n\t    netlink_sendmsg+0x15c/0x370\n\t    ____sys_sendmsg+0x120/0x290\n\t    ___sys_sendmsg+0x70/0xa0\n\nTested-on: QCN9074 hw1.0 PCI WLAN.HK.2.9.0.1-01977-QCAHKSWPL_SILICONZ-1",
  "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": null,
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-98307"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c4108dce0838ec7d38d782f76f9c007cfe2fff45"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/57bc3cd46458eafa1c38e3044a61b7399cde7642"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/be1d5e95ec499ed5ee9704aa27dd1407ccf0d0ac"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/820b8cff81c796ba20573e04722ab62500713f97"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-10-06T08:47:10Z"
  }
}