INFO: trying to register non-static key in hci_uart_tty

INFO: trying to register non-static key in hci_uart_tty_receive (3)
Status: upstream: reported on 2021/10/22 23:54
Reported-by: syzbot+f2725165900304ec97b6@syzkaller.appspotmail.com
First crash: 43d, last: 36d

similar bugs (3):
Kernel	Title	Count	Last	Reported	Patched	Status
upstream	INFO: trying to register non-static key in hci_uart_tty_receive	1	825d	823d	0/22	auto-closed as invalid on 2019/10/28 14:58
linux-4.19	INFO: trying to register non-static key in hci_uart_tty_receive	1	951d	951d	0/1	auto-closed as invalid on 2019/10/22 04:49
upstream	INFO: trying to register non-static key in hci_uart_tty_receive (2)	1	735d	731d	0/22	auto-closed as invalid on 2020/03/26 00:10

Sample crash report:

INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 1 PID: 7598 Comm: syz-executor.2 Not tainted 5.15.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1dc/0x2d8 lib/dump_stack.c:106
 assign_lock_key kernel/locking/lockdep.c:939 [inline]
 register_lock_class+0xf4b/0x1390 kernel/locking/lockdep.c:1251
 __lock_acquire+0x149/0x2b00 kernel/locking/lockdep.c:4894
 lock_acquire+0x19f/0x4d0 kernel/locking/lockdep.c:5625
 percpu_down_read+0x46/0x190 include/linux/percpu-rwsem.h:51
 hci_uart_tty_receive+0x87/0x4a0 drivers/bluetooth/hci_ldisc.c:603
 tiocsti drivers/tty/tty_io.c:2310 [inline]
 tty_ioctl+0xe30/0x17d0 drivers/tty/tty_io.c:2719
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fe704d2ba39
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe70221d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fe704e2f260 RCX: 00007fe704d2ba39
RDX: 0000000020000000 RSI: 0000000000005412 RDI: 0000000000000005
RBP: 00007fe704d85e8f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc8655811f R14: 00007fe70221d300 R15: 0000000000022000

Crashes (2):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Title
ci-upstream-kasan-gce-smack-root	2021/10/26 01:01	upstream	c2b43854aad9	c1132b49	.config	log	report			info	INFO: trying to register non-static key in hci_uart_tty_receive
ci-upstream-kasan-gce-root	2021/10/18 23:53	upstream	519d81956ee2	24dc29db	.config	log	report			info	INFO: trying to register non-static key in hci_uart_tty_receive