CVE-2023-53046 (GCVE-0-2023-53046)
Vulnerability from cvelistv5
Published
2025-05-02 15:55
Modified
2025-05-04 07:48
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix race condition in hci_cmd_sync_clear There is a potential race condition in hci_cmd_sync_work and hci_cmd_sync_clear, and could lead to use-after-free. For instance, hci_cmd_sync_work is added to the 'req_workqueue' after cancel_work_sync The entry of 'cmd_sync_work_list' may be freed in hci_cmd_sync_clear, and causing kernel panic when it is used in 'hci_cmd_sync_work'. Here's the call trace: dump_stack_lvl+0x49/0x63 print_report.cold+0x5e/0x5d3 ? hci_cmd_sync_work+0x282/0x320 kasan_report+0xaa/0x120 ? hci_cmd_sync_work+0x282/0x320 __asan_report_load8_noabort+0x14/0x20 hci_cmd_sync_work+0x282/0x320 process_one_work+0x77b/0x11c0 ? _raw_spin_lock_irq+0x8e/0xf0 worker_thread+0x544/0x1180 ? poll_idle+0x1e0/0x1e0 kthread+0x285/0x320 ? process_one_work+0x11c0/0x11c0 ? kthread_complete_and_exit+0x30/0x30 ret_from_fork+0x22/0x30 </TASK> Allocated by task 266: kasan_save_stack+0x26/0x50 __kasan_kmalloc+0xae/0xe0 kmem_cache_alloc_trace+0x191/0x350 hci_cmd_sync_queue+0x97/0x2b0 hci_update_passive_scan+0x176/0x1d0 le_conn_complete_evt+0x1b5/0x1a00 hci_le_conn_complete_evt+0x234/0x340 hci_le_meta_evt+0x231/0x4e0 hci_event_packet+0x4c5/0xf00 hci_rx_work+0x37d/0x880 process_one_work+0x77b/0x11c0 worker_thread+0x544/0x1180 kthread+0x285/0x320 ret_from_fork+0x22/0x30 Freed by task 269: kasan_save_stack+0x26/0x50 kasan_set_track+0x25/0x40 kasan_set_free_info+0x24/0x40 ____kasan_slab_free+0x176/0x1c0 __kasan_slab_free+0x12/0x20 slab_free_freelist_hook+0x95/0x1a0 kfree+0xba/0x2f0 hci_cmd_sync_clear+0x14c/0x210 hci_unregister_dev+0xff/0x440 vhci_release+0x7b/0xf0 __fput+0x1f3/0x970 ____fput+0xe/0x20 task_work_run+0xd4/0x160 do_exit+0x8b0/0x22a0 do_group_exit+0xba/0x2a0 get_signal+0x1e4a/0x25b0 arch_do_signal_or_restart+0x93/0x1f80 exit_to_user_mode_prepare+0xf5/0x1a0 syscall_exit_to_user_mode+0x26/0x50 ret_from_fork+0x15/0x30
References
Impacted products
Vendor Product Version
Linux Linux Version: 6a98e3836fa2077b169f10a35c2ca9952d53f987
Version: 6a98e3836fa2077b169f10a35c2ca9952d53f987
Version: 6a98e3836fa2077b169f10a35c2ca9952d53f987
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/hci_sync.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "608901a77c945ac15dea23f6098c9882ef19d9f0",
              "status": "affected",
              "version": "6a98e3836fa2077b169f10a35c2ca9952d53f987",
              "versionType": "git"
            },
            {
              "lessThan": "be586211a3ab40a4f4ca60450e0d31606afc55ec",
              "status": "affected",
              "version": "6a98e3836fa2077b169f10a35c2ca9952d53f987",
              "versionType": "git"
            },
            {
              "lessThan": "1c66bee492a5fe00ae3fe890bb693bfc99f994c6",
              "status": "affected",
              "version": "6a98e3836fa2077b169f10a35c2ca9952d53f987",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/hci_sync.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.17"
            },
            {
              "lessThan": "5.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.22",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.22",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2.9",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.3",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: Fix race condition in hci_cmd_sync_clear\n\nThere is a potential race condition in hci_cmd_sync_work and\nhci_cmd_sync_clear, and could lead to use-after-free. For instance,\nhci_cmd_sync_work is added to the \u0027req_workqueue\u0027 after cancel_work_sync\nThe entry of \u0027cmd_sync_work_list\u0027 may be freed in hci_cmd_sync_clear, and\ncausing kernel panic when it is used in \u0027hci_cmd_sync_work\u0027.\n\nHere\u0027s the call trace:\n\ndump_stack_lvl+0x49/0x63\nprint_report.cold+0x5e/0x5d3\n? hci_cmd_sync_work+0x282/0x320\nkasan_report+0xaa/0x120\n? hci_cmd_sync_work+0x282/0x320\n__asan_report_load8_noabort+0x14/0x20\nhci_cmd_sync_work+0x282/0x320\nprocess_one_work+0x77b/0x11c0\n? _raw_spin_lock_irq+0x8e/0xf0\nworker_thread+0x544/0x1180\n? poll_idle+0x1e0/0x1e0\nkthread+0x285/0x320\n? process_one_work+0x11c0/0x11c0\n? kthread_complete_and_exit+0x30/0x30\nret_from_fork+0x22/0x30\n\u003c/TASK\u003e\n\nAllocated by task 266:\nkasan_save_stack+0x26/0x50\n__kasan_kmalloc+0xae/0xe0\nkmem_cache_alloc_trace+0x191/0x350\nhci_cmd_sync_queue+0x97/0x2b0\nhci_update_passive_scan+0x176/0x1d0\nle_conn_complete_evt+0x1b5/0x1a00\nhci_le_conn_complete_evt+0x234/0x340\nhci_le_meta_evt+0x231/0x4e0\nhci_event_packet+0x4c5/0xf00\nhci_rx_work+0x37d/0x880\nprocess_one_work+0x77b/0x11c0\nworker_thread+0x544/0x1180\nkthread+0x285/0x320\nret_from_fork+0x22/0x30\n\nFreed by task 269:\nkasan_save_stack+0x26/0x50\nkasan_set_track+0x25/0x40\nkasan_set_free_info+0x24/0x40\n____kasan_slab_free+0x176/0x1c0\n__kasan_slab_free+0x12/0x20\nslab_free_freelist_hook+0x95/0x1a0\nkfree+0xba/0x2f0\nhci_cmd_sync_clear+0x14c/0x210\nhci_unregister_dev+0xff/0x440\nvhci_release+0x7b/0xf0\n__fput+0x1f3/0x970\n____fput+0xe/0x20\ntask_work_run+0xd4/0x160\ndo_exit+0x8b0/0x22a0\ndo_group_exit+0xba/0x2a0\nget_signal+0x1e4a/0x25b0\narch_do_signal_or_restart+0x93/0x1f80\nexit_to_user_mode_prepare+0xf5/0x1a0\nsyscall_exit_to_user_mode+0x26/0x50\nret_from_fork+0x15/0x30"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:48:31.079Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/608901a77c945ac15dea23f6098c9882ef19d9f0"
        },
        {
          "url": "https://git.kernel.org/stable/c/be586211a3ab40a4f4ca60450e0d31606afc55ec"
        },
        {
          "url": "https://git.kernel.org/stable/c/1c66bee492a5fe00ae3fe890bb693bfc99f994c6"
        }
      ],
      "title": "Bluetooth: Fix race condition in hci_cmd_sync_clear",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53046",
    "datePublished": "2025-05-02T15:55:03.270Z",
    "dateReserved": "2025-04-16T07:18:43.828Z",
    "dateUpdated": "2025-05-04T07:48:31.079Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53046\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-02T16:15:23.697\",\"lastModified\":\"2025-05-05T20:54:45.973\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: Fix race condition in hci_cmd_sync_clear\\n\\nThere is a potential race condition in hci_cmd_sync_work and\\nhci_cmd_sync_clear, and could lead to use-after-free. For instance,\\nhci_cmd_sync_work is added to the \u0027req_workqueue\u0027 after cancel_work_sync\\nThe entry of \u0027cmd_sync_work_list\u0027 may be freed in hci_cmd_sync_clear, and\\ncausing kernel panic when it is used in \u0027hci_cmd_sync_work\u0027.\\n\\nHere\u0027s the call trace:\\n\\ndump_stack_lvl+0x49/0x63\\nprint_report.cold+0x5e/0x5d3\\n? hci_cmd_sync_work+0x282/0x320\\nkasan_report+0xaa/0x120\\n? hci_cmd_sync_work+0x282/0x320\\n__asan_report_load8_noabort+0x14/0x20\\nhci_cmd_sync_work+0x282/0x320\\nprocess_one_work+0x77b/0x11c0\\n? _raw_spin_lock_irq+0x8e/0xf0\\nworker_thread+0x544/0x1180\\n? poll_idle+0x1e0/0x1e0\\nkthread+0x285/0x320\\n? process_one_work+0x11c0/0x11c0\\n? kthread_complete_and_exit+0x30/0x30\\nret_from_fork+0x22/0x30\\n\u003c/TASK\u003e\\n\\nAllocated by task 266:\\nkasan_save_stack+0x26/0x50\\n__kasan_kmalloc+0xae/0xe0\\nkmem_cache_alloc_trace+0x191/0x350\\nhci_cmd_sync_queue+0x97/0x2b0\\nhci_update_passive_scan+0x176/0x1d0\\nle_conn_complete_evt+0x1b5/0x1a00\\nhci_le_conn_complete_evt+0x234/0x340\\nhci_le_meta_evt+0x231/0x4e0\\nhci_event_packet+0x4c5/0xf00\\nhci_rx_work+0x37d/0x880\\nprocess_one_work+0x77b/0x11c0\\nworker_thread+0x544/0x1180\\nkthread+0x285/0x320\\nret_from_fork+0x22/0x30\\n\\nFreed by task 269:\\nkasan_save_stack+0x26/0x50\\nkasan_set_track+0x25/0x40\\nkasan_set_free_info+0x24/0x40\\n____kasan_slab_free+0x176/0x1c0\\n__kasan_slab_free+0x12/0x20\\nslab_free_freelist_hook+0x95/0x1a0\\nkfree+0xba/0x2f0\\nhci_cmd_sync_clear+0x14c/0x210\\nhci_unregister_dev+0xff/0x440\\nvhci_release+0x7b/0xf0\\n__fput+0x1f3/0x970\\n____fput+0xe/0x20\\ntask_work_run+0xd4/0x160\\ndo_exit+0x8b0/0x22a0\\ndo_group_exit+0xba/0x2a0\\nget_signal+0x1e4a/0x25b0\\narch_do_signal_or_restart+0x93/0x1f80\\nexit_to_user_mode_prepare+0xf5/0x1a0\\nsyscall_exit_to_user_mode+0x26/0x50\\nret_from_fork+0x15/0x30\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: Corregir condici\u00f3n de ejecuci\u00f3n en hci_cmd_sync_clear Existe una posible condici\u00f3n de ejecuci\u00f3n en hci_cmd_sync_work y hci_cmd_sync_clear, y podr\u00eda provocar un use-after-free. Por ejemplo, hci_cmd_sync_work se a\u00f1ade a \u0027req_workqueue\u0027 despu\u00e9s de cancel_work_sync La entrada de \u0027cmd_sync_work_list\u0027 puede liberarse en hci_cmd_sync_clear y provocar un p\u00e1nico del kernel cuando se utiliza en \u0027hci_cmd_sync_work\u0027. Aqu\u00ed est\u00e1 el seguimiento de la llamada: dump_stack_lvl+0x49/0x63 print_report.cold+0x5e/0x5d3 ? hci_cmd_sync_work+0x282/0x320 kasan_report+0xaa/0x120 ? hci_cmd_sync_work+0x282/0x320 __asan_report_load8_noabort+0x14/0x20 hci_cmd_sync_work+0x282/0x320 process_one_work+0x77b/0x11c0 ? _raw_spin_lock_irq+0x8e/0xf0 worker_thread+0x544/0x1180 ? poll_idle+0x1e0/0x1e0 kthread+0x285/0x320 ? process_one_work+0x11c0/0x11c0 ? kthread_complete_and_exit+0x30/0x30 ret_from_fork+0x22/0x30  Allocated by task 266: kasan_save_stack+0x26/0x50 __kasan_kmalloc+0xae/0xe0 kmem_cache_alloc_trace+0x191/0x350 hci_cmd_sync_queue+0x97/0x2b0 hci_update_passive_scan+0x176/0x1d0 le_conn_complete_evt+0x1b5/0x1a00 hci_le_conn_complete_evt+0x234/0x340 hci_le_meta_evt+0x231/0x4e0 hci_event_packet+0x4c5/0xf00 hci_rx_work+0x37d/0x880 process_one_work+0x77b/0x11c0 worker_thread+0x544/0x1180 kthread+0x285/0x320 ret_from_fork+0x22/0x30 Freed by task 269: kasan_save_stack+0x26/0x50 kasan_set_track+0x25/0x40 kasan_set_free_info+0x24/0x40 ____kasan_slab_free+0x176/0x1c0 __kasan_slab_free+0x12/0x20 slab_free_freelist_hook+0x95/0x1a0 kfree+0xba/0x2f0 hci_cmd_sync_clear+0x14c/0x210 hci_unregister_dev+0xff/0x440 vhci_release+0x7b/0xf0 __fput+0x1f3/0x970 ____fput+0xe/0x20 task_work_run+0xd4/0x160 do_exit+0x8b0/0x22a0 do_group_exit+0xba/0x2a0 get_signal+0x1e4a/0x25b0 arch_do_signal_or_restart+0x93/0x1f80 exit_to_user_mode_prepare+0xf5/0x1a0 syscall_exit_to_user_mode+0x26/0x50 ret_from_fork+0x15/0x30 \"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1c66bee492a5fe00ae3fe890bb693bfc99f994c6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/608901a77c945ac15dea23f6098c9882ef19d9f0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/be586211a3ab40a4f4ca60450e0d31606afc55ec\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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