INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 1 PID: 10751 Comm: syz-executor.5 Not tainted 4.14.307-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 register_lock_class+0x389/0x1180 kernel/locking/lockdep.c:768
 __lock_acquire+0x167/0x3f20 kernel/locking/lockdep.c:3378
 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998
 flush_work+0xad/0x770 kernel/workqueue.c:2890
 __cancel_work_timer+0x321/0x460 kernel/workqueue.c:2965
 smc_close_active+0x7e2/0xbb0 net/smc/smc_close.c:207
 smc_release+0x3e1/0x5d0 net/smc/af_smc.c:131
 __sock_release+0xcd/0x2b0 net/socket.c:602
 sock_close+0x15/0x20 net/socket.c:1139
 __fput+0x25f/0x7a0 fs/file_table.c:210
 task_work_run+0x11f/0x190 kernel/task_work.c:113
 get_signal+0x18a3/0x1ca0 kernel/signal.c:2223
 do_signal+0x7c/0x1550 arch/x86/kernel/signal.c:792
 exit_to_usermode_loop+0x160/0x200 arch/x86/entry/common.c:160
 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
 do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fd2e88960f9
RSP: 002b:00007fd2e6de7168 EFLAGS: 00000246 ORIG_RAX: 000000000000010e
RAX: fffffffffffffdfe RBX: 00007fd2e89b6050 RCX: 00007fd2e88960f9
RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000040
RBP: 00007fd2e88f1ae9 R08: 0000000020000480 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff7e16ce6f R14: 00007fd2e6de7300 R15: 0000000000022000
netlink: 2168 bytes leftover after parsing attributes in process `syz-executor.5'.
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'.
BTRFS: device fsid 14d642db-7b15-43e4-81e6-4b8fac6a25f8 devid 1 transid 8 /dev/loop2
BTRFS error (device loop2): unsupported checksum algorithm 3
BTRFS error (device loop2): superblock checksum mismatch
BTRFS error (device loop2): open_ctree failed
netlink: 2168 bytes leftover after parsing attributes in process `syz-executor.5'.
netlink: 2168 bytes leftover after parsing attributes in process `syz-executor.0'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'.
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'.
hub 5-0:1.0: USB hub found
hub 5-0:1.0: 1 port detected
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'.
hub 5-0:1.0: USB hub found
nla_parse: 5 callbacks suppressed
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'.
hub 5-0:1.0: 1 port detected
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'.
netlink: 2168 bytes leftover after parsing attributes in process `syz-executor.0'.
hub 5-0:1.0: USB hub found
hub 5-0:1.0: 1 port detected
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'.
hub 5-0:1.0: USB hub found
hub 5-0:1.0: 1 port detected
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'.
hub 5-0:1.0: USB hub found
hub 5-0:1.0: 1 port detected
hub 5-0:1.0: USB hub found
hub 5-0:1.0: 1 port detected
hub 5-0:1.0: USB hub found
hub 5-0:1.0: 1 port detected
hub 5-0:1.0: USB hub found
hub 5-0:1.0: 1 port detected