Bluetooth: hci1: Opcode 0x0406 failed: -4
Bluetooth: hci1: Opcode 0x0406 failed: -4
Bluetooth: hci4: Opcode 0x0c1a failed: -4
Bluetooth: hci4: Opcode 0x0406 failed: -4
Unable to handle kernel paging request at virtual address dfff80000000000b
KASAN: null-ptr-deref in range [0x0000000000000058-0x000000000000005f]
Mem abort info:
  ESR = 0x0000000096000005
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x05: level 1 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000
  CM = 0, WnR = 0, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[dfff80000000000b] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1]  SMP
Modules linked in:
CPU: 1 UID: 0 PID: 8443 Comm: syz.0.831 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : klist_put+0x50/0x118 lib/klist.c:212
lr : klist_put+0x2c/0x118 lib/klist.c:210
sp : ffff800092356e00
x29: ffff800092356e00 x28: 0000000000000000 x27: 1fffe0001eec1cea
x26: dfff800000000000 x25: ffff0000f4df5700 x24: 1fffe0001b348e0c
x23: dfff800000000000 x22: ffff800089edd0c0 x21: 0000000000000001
x20: 0000000000000000 x19: ffff0000d9a47060 x18: 00000000ffffffff
x17: ffff80008a0cdc80 x16: ffff80008a50be98 x15: ffff0000f4df6250
x14: ffff0000f4df6230 x13: 0000000000000001 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 000000000000000b x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff80008a8795e0 x4 : 0000000000000008 x3 : ffff800080459e2c
x2 : 0000000000000001 x1 : ffff0000f4df5700 x0 : 0000000000000058
Call trace:
 klist_put+0x50/0x118 lib/klist.c:212 (P)
 klist_del lib/klist.c:230 [inline]
 klist_remove+0x118/0x264 lib/klist.c:249
 device_move+0x164/0x5a8 drivers/base/core.c:4632
 hci_conn_del_sysfs+0xb4/0x194 net/bluetooth/hci_sysfs.c:75
 hci_conn_cleanup net/bluetooth/hci_conn.c:173 [inline]
 hci_conn_del+0x9bc/0xf04 net/bluetooth/hci_conn.c:1240
 hci_conn_failed+0x224/0x334 net/bluetooth/hci_conn.c:1343
 hci_abort_conn_sync+0x500/0x8e8 net/bluetooth/hci_sync.c:5763
 hci_disconnect_all_sync+0x1b0/0x334 net/bluetooth/hci_sync.c:5786
 hci_suspend_sync+0x324/0x88c net/bluetooth/hci_sync.c:6262
 hci_suspend_dev+0x214/0x448 net/bluetooth/hci_core.c:2850
 hci_suspend_notifier+0xe4/0x2b0 net/bluetooth/hci_core.c:2421
 notifier_call_chain+0x194/0x60c kernel/notifier.c:85
 notifier_call_chain_robust+0x54/0xc4 kernel/notifier.c:120
 blocking_notifier_call_chain_robust+0x74/0xa8 kernel/notifier.c:345
 pm_notifier_call_chain_robust+0x34/0x60 kernel/power/main.c:172
 snapshot_open+0x17c/0x268 kernel/power/user.c:77
 misc_open+0x2d8/0x334 drivers/char/misc.c:163
 chrdev_open+0x398/0x3e8 fs/char_dev.c:411
 do_dentry_open+0x5c8/0x10dc fs/open.c:947
 vfs_open+0x44/0x2d4 fs/open.c:1079
 do_open fs/namei.c:4699 [inline]
 path_openat+0x2234/0x2a6c fs/namei.c:4858
 do_file_open+0x1c4/0x2e4 fs/namei.c:4887
 do_sys_openat2+0x114/0x1e8 fs/open.c:1364
 do_sys_open+0xac/0xdc fs/open.c:1370
 __do_sys_openat fs/open.c:1386 [inline]
 __se_sys_openat fs/open.c:1381 [inline]
 __arm64_sys_openat+0x9c/0xb8 fs/open.c:1381
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140
 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723
 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594
Code: f9400268 927ff914 91016280 d343fc08 (38776908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	f9400268 	ldr	x8, [x19]
   4:	927ff914 	and	x20, x8, #0xfffffffffffffffe
   8:	91016280 	add	x0, x20, #0x58
   c:	d343fc08 	lsr	x8, x0, #3
* 10:	38776908 	ldrb	w8, [x8, x23] <-- trapping instruction