INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 0 PID: 12684 Comm: syz-executor.5 Not tainted 4.14.218-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:58
 register_lock_class+0x32b/0x1320 syzkaller/managers/linux-4-14/kernel/kernel/locking/lockdep.c:768
 __lock_acquire+0x167/0x3f20 syzkaller/managers/linux-4-14/kernel/kernel/locking/lockdep.c:3378
 lock_acquire+0x170/0x3f0 syzkaller/managers/linux-4-14/kernel/kernel/locking/lockdep.c:3998
 __raw_spin_lock_irqsave syzkaller/managers/linux-4-14/kernel/./include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x8c/0xc0 syzkaller/managers/linux-4-14/kernel/kernel/locking/spinlock.c:160
 skb_dequeue+0x1c/0x180 syzkaller/managers/linux-4-14/kernel/net/core/skbuff.c:2831
 skb_queue_purge+0x21/0x30 syzkaller/managers/linux-4-14/kernel/net/core/skbuff.c:2869
 l2cap_chan_del+0x56d/0x950 syzkaller/managers/linux-4-14/kernel/net/bluetooth/l2cap_core.c:637
 l2cap_chan_close+0x103/0x870 syzkaller/managers/linux-4-14/kernel/net/bluetooth/l2cap_core.c:757
 l2cap_sock_shutdown+0x2e7/0xc20 syzkaller/managers/linux-4-14/kernel/net/bluetooth/l2cap_sock.c:1160
 l2cap_sock_release+0x77/0x280 syzkaller/managers/linux-4-14/kernel/net/bluetooth/l2cap_sock.c:1203
 __sock_release+0xcd/0x2b0 syzkaller/managers/linux-4-14/kernel/net/socket.c:602
 sock_close+0x15/0x20 syzkaller/managers/linux-4-14/kernel/net/socket.c:1139
 __fput+0x25f/0x7a0 syzkaller/managers/linux-4-14/kernel/fs/file_table.c:210
 task_work_run+0x11f/0x190 syzkaller/managers/linux-4-14/kernel/kernel/task_work.c:113
 get_signal+0x18a3/0x1ca0 syzkaller/managers/linux-4-14/kernel/kernel/signal.c:2234
 do_signal+0x7c/0x1550 syzkaller/managers/linux-4-14/kernel/arch/x86/kernel/signal.c:814
 exit_to_usermode_loop+0x160/0x200 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:160
 prepare_exit_to_usermode syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:199 [inline]
 syscall_return_slowpath syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:270 [inline]
 do_syscall_64+0x4a3/0x640 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x465d99
RSP: 002b:00007f4bd6d96188 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: fffffffffffffffc RBX: 000000000056c0b0 RCX: 0000000000465d99
RDX: 000000000000000e RSI: 0000000020000500 RDI: 0000000000000004
RBP: 00000000004bcf27 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c0b0
R13: 00007ffc93bc0f9f R14: 00007f4bd6d96300 R15: 0000000000022000
Bluetooth: hci5 command 0x0419 tx timeout
audit: type=1804 audit(1613467058.022:16): pid=12825 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.1" name="/root/syzkaller-testdir094767623/syzkaller.kCYC3A/163/file0" dev="sda1" ino=16017 res=1
audit: type=1804 audit(1613467058.442:17): pid=12915 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.3" name="/root/syzkaller-testdir849966576/syzkaller.UBN8RP/175/file1" dev="sda1" ino=15995 res=1
audit: type=1804 audit(1613467058.492:18): pid=12926 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.1" name="/root/syzkaller-testdir094767623/syzkaller.kCYC3A/169/file1" dev="sda1" ino=16014 res=1
audit: type=1800 audit(1613467058.622:19): pid=12950 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.0" name="file1" dev="sda1" ino=16013 res=0
audit: type=1800 audit(1613467058.632:20): pid=12950 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.0" name="file1" dev="sda1" ino=16013 res=0
arp_tables: arptables: counters copy to user failed while replacing table
isofs_fill_super: bread failed, dev=loop2, iso_blknum=34, block=68
arp_tables: arptables: counters copy to user failed while replacing table
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'.
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'.
arp_tables: arptables: counters copy to user failed while replacing table
Bluetooth: hci5 command 0x0405 tx timeout
netlink: 23 bytes leftover after parsing attributes in process `syz-executor.5'.
isofs_fill_super: bread failed, dev=loop2, iso_blknum=34, block=68
isofs_fill_super: bread failed, dev=loop4, iso_blknum=34, block=68
A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check.
batman_adv: batadv0: Interface deactivated: batadv_slave_0
batman_adv: batadv0: Removing interface: batadv_slave_0
team0: Device batadv_slave_0 is up. Set it down before adding it as a team port
MTD: Attempt to mount non-MTD device "/dev/loop2"
romfs: VFS: Can't find a romfs filesystem on dev loop2.
tmpfs: Bad value 'always5' for mount option 'huge'
VFS: Can't find a Minix filesystem V1 | V2 | V3 on device loop4.
netlink: 14 bytes leftover after parsing attributes in process `syz-executor.2'.
bridge0: port 2(bridge_slave_1) entered disabled state
bridge0: port 1(bridge_slave_0) entered disabled state
device bridge0 entered promiscuous mode
PF_BRIDGE: RTM_NEWNEIGH with invalid ifindex
VFS: Can't find a Minix filesystem V1 | V2 | V3 on device loop4.
VFS: Can't find a Minix filesystem V1 | V2 | V3 on device loop4.
PF_BRIDGE: RTM_NEWNEIGH with invalid ifindex
device macvlan0 entered promiscuous mode
device macvlan0 left promiscuous mode
VFS: Can't find a Minix filesystem V1 | V2 | V3 on device loop4.
PF_BRIDGE: RTM_NEWNEIGH with invalid ifindex