INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 0 PID: 12258 Comm: syz-executor.0 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
 tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164
 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: 0033:0x7fa7fa6defab
RSP: 002b:00007ffc1b8880c0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007fa7fa6defab
RDX: 0000001b2e820000 RSI: 0000001b2e828b84 RDI: 0000000000000004
RBP: 00007fa7fa84e980 R08: 0000000000000000 R09: 00000000f105bd8a
R10: 0016b10b14b78de1 R11: 0000000000000293 R12: 0000000000040268
R13: 00007ffc1b8881c0 R14: 00007ffc1b8881e0 R15: 0000000000000032
hfs: invalid catalog max_key_len 7
hfs: unable to open catalog tree
hfs: can't find a HFS filesystem on dev loop4
hfs: invalid catalog max_key_len 7
hfs: unable to open catalog tree
hfs: can't find a HFS filesystem on dev loop4
hfs: invalid catalog max_key_len 7
hfs: unable to open catalog tree
hfs: can't find a HFS filesystem on dev loop4
print_req_error: I/O error, dev loop4, sector 4
Buffer I/O error on dev loop4, logical block 1, async page read
ntfs: volume version 3.1.
ntfs: volume version 3.1.
ntfs: volume version 3.1.
ntfs: volume version 3.1.
ntfs: volume version 3.1.
ntfs: volume version 3.1.
ntfs: volume version 3.1.
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1