WARNING in hci_conn_timeout

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Hello,

syzbot found the following issue on:

HEAD commit:    7dc6fd0f Merge branch 'i2c/for-current' of git://git.kerne..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=12a70832900000
kernel config:  https://syzkaller.appspot.com/x/.config?x=e59ee776d5aa8d55
dashboard link: https://syzkaller.appspot.com/bug?extid=2446dd3cb07277388db6
compiler:       clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81)
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=13f781d4900000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=116a0c14900000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2446dd3cb07277388db6@xxxxxxxxxxxxxxxxxxxxxxxxx

------------[ cut here ]------------
WARNING: CPU: 0 PID: 6953 at net/bluetooth/hci_conn.c:412 hci_conn_timeout+0x20f/0x290 net/bluetooth/hci_conn.c:412
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 6953 Comm: kworker/u5:2 Not tainted 5.8.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_conn_timeout
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1f0/0x31e lib/dump_stack.c:118
 panic+0x264/0x7a0 kernel/panic.c:231
 __warn+0x227/0x250 kernel/panic.c:600
 report_bug+0x1b1/0x2e0 lib/bug.c:198
 handle_bug+0x42/0x80 arch/x86/kernel/traps.c:235
 exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:255
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:540
RIP: 0010:hci_conn_timeout+0x20f/0x290 net/bluetooth/hci_conn.c:412
Code: c7 50 4d 8d 89 e8 71 d0 5f fa 48 8b 35 6a 7c 39 02 bf 40 00 00 00 4c 89 f2 5b 41 5c 41 5e 41 5f e9 46 69 f8 f9 e8 61 c1 20 fa <0f> 0b e9 5c fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 1a fe ff
RSP: 0018:ffffc90001577cc8 EFLAGS: 00010293
RAX: ffffffff8753d0ff RBX: 00000000ffffffff RCX: ffff888092948440
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000
RBP: ffff8880a9b7b008 R08: ffffffff8753cf3b R09: ffffed1010da5003
R10: ffffed1010da5003 R11: 0000000000000000 R12: ffff8880a7290d00
R13: ffff8880a7290d18 R14: ffff888086d28128 R15: dffffc0000000000
 process_one_work+0x789/0xfc0 kernel/workqueue.c:2269
 worker_thread+0xaa4/0x1460 kernel/workqueue.c:2415
 kthread+0x37e/0x3a0 drivers/block/aoe/aoecmd.c:1234
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293
Kernel Offset: disabled
Rebooting in 86400 seconds..


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