{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-53208",
  "modified": "2026-10-09T11:39:44Z",
  "upstream": [
    "CVE-2024-53208"
  ],
  "published": "2024-12-27T13:53:01Z",
  "summary": "Bluetooth: MGMT: Fix slab-use-after-free Read in set_powered_sync",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: Fix slab-use-after-free Read in set_powered_sync\n\nThis fixes the following crash:\n\n==================================================================\nBUG: KASAN: slab-use-after-free in set_powered_sync+0x3a/0xc0 net/bluetooth/mgmt.c:1353\nRead of size 8 at addr ffff888029b4dd18 by task kworker/u9:0/54\n\nCPU: 1 UID: 0 PID: 54 Comm: kworker/u9:0 Not tainted 6.11.0-rc6-syzkaller-01155-gf723224742fc #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024\nWorkqueue: hci0 hci_cmd_sync_work\nCall Trace:\n <TASK>\n __dump_stack lib/dump_stack.c:93 [inline]\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119\n print_address_description mm/kasan/report.c:377 [inline]\n print_report+0x169/0x550 mm/kasan/report.c:488\nq kasan_report+0x143/0x180 mm/kasan/report.c:601\n set_powered_sync+0x3a/0xc0 net/bluetooth/mgmt.c:1353\n hci_cmd_sync_work+0x22b/0x400 net/bluetooth/hci_sync.c:328\n process_one_work kernel/workqueue.c:3231 [inline]\n process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312\n worker_thread+0x86d/0xd10 kernel/workqueue.c:3389\n kthread+0x2f0/0x390 kernel/kthread.c:389\n ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244\n </TASK>\n\nAllocated by task 5247:\n kasan_save_stack mm/kasan/common.c:47 [inline]\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\n poison_kmalloc_redzone mm/kasan/common.c:370 [inline]\n __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387\n kasan_kmalloc include/linux/kasan.h:211 [inline]\n __kmalloc_cache_noprof+0x19c/0x2c0 mm/slub.c:4193\n kmalloc_noprof include/linux/slab.h:681 [inline]\n kzalloc_noprof include/linux/slab.h:807 [inline]\n mgmt_pending_new+0x65/0x250 net/bluetooth/mgmt_util.c:269\n mgmt_pending_add+0x36/0x120 net/bluetooth/mgmt_util.c:296\n set_powered+0x3cd/0x5e0 net/bluetooth/mgmt.c:1394\n hci_mgmt_cmd+0xc47/0x11d0 net/bluetooth/hci_sock.c:1712\n hci_sock_sendmsg+0x7b8/0x11c0 net/bluetooth/hci_sock.c:1832\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg+0x221/0x270 net/socket.c:745\n sock_write_iter+0x2dd/0x400 net/socket.c:1160\n new_sync_write fs/read_write.c:497 [inline]\n vfs_write+0xa72/0xc90 fs/read_write.c:590\n ksys_write+0x1a0/0x2c0 fs/read_write.c:643\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nFreed by task 5246:\n kasan_save_stack mm/kasan/common.c:47 [inline]\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\n kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579\n poison_slab_object+0xe0/0x150 mm/kasan/common.c:240\n __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256\n kasan_slab_free include/linux/kasan.h:184 [inline]\n slab_free_hook mm/slub.c:2256 [inline]\n slab_free mm/slub.c:4477 [inline]\n kfree+0x149/0x360 mm/slub.c:4598\n settings_rsp+0x2bc/0x390 net/bluetooth/mgmt.c:1443\n mgmt_pending_foreach+0xd1/0x130 net/bluetooth/mgmt_util.c:259\n __mgmt_power_off+0x112/0x420 net/bluetooth/mgmt.c:9455\n hci_dev_close_sync+0x665/0x11a0 net/bluetooth/hci_sync.c:5191\n hci_dev_do_close net/bluetooth/hci_core.c:483 [inline]\n hci_dev_close+0x112/0x210 net/bluetooth/hci_core.c:508\n sock_do_ioctl+0x158/0x460 net/socket.c:1222\n sock_ioctl+0x629/0x8e0 net/socket.c:1341\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:907 [inline]\n __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83gv\n entry_SYSCALL_64_after_hwframe+0x77/0x7f",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
    }
  ],
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-53208"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/cdfc818ffdfeb8266351ed59b6d884056009a095"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/95f7a972194ad20696c36523b54c19a3567e0697"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6b75f32bce90c085c89c45761373d940fdcff68c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/87819234aa1d2a0cb0f962fabb335e798f5ec8b2"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0b882940665ca2849386ee459d4331aa2f8c4e7d"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T11:52:36Z",
    "severity": {
      "source": "kernel CNA",
      "cvss_v3_score": 7.8,
      "cvss_v3_severity": "High",
      "scenario": "AV:L - The vulnerability is reached entirely through local interfaces \u2014 a `write()` of an MGMT_OP_SET_POWERED command on an AF_BLUETOOTH HCI control socket racing a local `ioctl(HCIDEVDOWN)`; no over-the-air Bluetooth traffic is involved in either side of the race.\nAC:L - The attacker controls both sides of the race and can spin the pair (mgmt SET_POWERED write, HCIDEVDOWN ioctl) in a tight loop until the work item fires against the freed command, exactly as the syzbot reproducer does.\nPR:L - The path is gated on CAP_NET_ADMIN, which in real deployments is held by unprivileged network-facing service accounts (bluetoothd, Android's bluetooth UID) rather than by root, making this a service-privilege-to-kernel escalation; this matches the scoring of the structurally identical CVE-2024-58013 in the same file.\nUI:N - The attacker triggers both the command submission and the device-down teardown directly; no action by any other user or victim is needed.\nS:U - The use-after-free corrupts kernel slab memory and is exploited within the same kernel security authority, with no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - `set_powered_sync()` reads the `cmd->param` pointer out of freed slab memory and dereferences it; if the reallocated object is attacker-sprayed this yields a controlled-address read, and the freed `cmd->sk` is subsequently used to build a response, enabling kernel memory disclosure.\nI:H - Beyond the read, `mgmt_set_powered_complete()` calls `mgmt_pending_remove()` on the freed command, performing a `list_del()` unlink through attacker-controllable pointers \u2014 a classic arbitrary-write primitive leading to control-flow hijack.\nA:H - The slab use-after-free reliably faults in the `hci_cmd_sync_work` kworker (KASAN-confirmed by syzbot), producing a kernel oops/panic and taking down the Bluetooth workqueue and potentially the whole system."
    }
  }
}