{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-56599",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-56599"
  ],
  "published": "2024-12-27T14:59:59Z",
  "summary": "wifi: ath10k: avoid NULL pointer error during sdio remove",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath10k: avoid NULL pointer error during sdio remove\n\nWhen running 'rmmod ath10k', ath10k_sdio_remove() will free sdio\nworkqueue by destroy_workqueue(). But if CONFIG_INIT_ON_FREE_DEFAULT_ON\nis set to yes, kernel panic will happen:\nCall trace:\n destroy_workqueue+0x1c/0x258\n ath10k_sdio_remove+0x84/0x94\n sdio_bus_remove+0x50/0x16c\n device_release_driver_internal+0x188/0x25c\n device_driver_detach+0x20/0x2c\n\nThis is because during 'rmmod ath10k', ath10k_sdio_remove() will call\nath10k_core_destroy() before destroy_workqueue(). wiphy_dev_release()\nwill finally be called in ath10k_core_destroy(). This function will free\nstruct cfg80211_registered_device *rdev and all its members, including\nwiphy, dev and the pointer of sdio workqueue. Then the pointer of sdio\nworkqueue will be set to NULL due to CONFIG_INIT_ON_FREE_DEFAULT_ON.\n\nAfter device release, destroy_workqueue() will use NULL pointer then the\nkernel panic happen.\n\nCall trace:\nath10k_sdio_remove\n  ->ath10k_core_unregister\n    \u2026\u2026\n    ->ath10k_core_stop\n      ->ath10k_hif_stop\n        ->ath10k_sdio_irq_disable\n    ->ath10k_hif_power_down\n      ->del_timer_sync(&ar_sdio->sleep_timer)\n  ->ath10k_core_destroy\n    ->ath10k_mac_destroy\n      ->ieee80211_free_hw\n        ->wiphy_free\n    \u2026\u2026\n          ->wiphy_dev_release\n  ->destroy_workqueue\n\nNeed to call destroy_workqueue() before ath10k_core_destroy(), free\nthe work queue buffer first and then free pointer of work queue by\nath10k_core_destroy(). This order matches the error path order in\nath10k_sdio_probe().\n\nNo work will be queued on sdio workqueue between it is destroyed and\nath10k_core_destroy() is called. Based on the call_stack above, the\nreason is:\nOnly ath10k_sdio_sleep_timer_handler(), ath10k_sdio_hif_tx_sg() and\nath10k_sdio_irq_disable() will queue work on sdio workqueue.\nSleep timer will be deleted before ath10k_core_destroy() in\nath10k_hif_power_down().\nath10k_sdio_irq_disable() only be called in ath10k_hif_stop().\nath10k_core_unregister() will call ath10k_hif_power_down() to stop hif\nbus, so ath10k_sdio_hif_tx_sg() won't be called anymore.\n\nTested-on: QCA6174 hw3.2 SDIO WLAN.RMH.4.4.1-00189",
  "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": "6.1.127",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-56599"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/27d5d217ae7ffb99dd623375a17a7d3418d9c755"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/27fda36eedad9e4ec795dc481f307901d1885112"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6e5dbd1c04abf2c19b2282915e6fa48b6ccc6921"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b35de9e01fc79c7baac666fb2dcb4ba7698a1d97"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/543c0924d446b21f35701ca084d7feca09511220"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/95c38953cb1ecf40399a676a1f85dfe2b5780a9a"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}