BUG: MAX_LOCK_DEPTH too low! turning off the locking correctness validator. depth: 48 max: 48! 48 locks held by syz-executor681/20927: #0: ffff88806cb0dc10 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:777 [inline] #0: ffff88806cb0dc10 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: __sock_release+0x76/0x270 net/socket.c:649 #1: ffff88807df44a78 (&smc->clcsock_release_lock){+.+.}-{3:3}, at: smc_clcsock_release+0x54/0xb0 net/smc/smc_close.c:30 #2: ffff88807b136130 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1668 [inline] #2: ffff88807b136130 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: tcp_close+0x10/0x70 net/ipv4/tcp.c:2918 #3: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #4: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #5: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #6: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #7: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #8: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #9: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #10: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #11: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #12: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #13: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #14: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #15: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #16: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #17: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #18: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #19: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #20: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #21: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #22: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #23: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #24: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #25: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #26: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #27: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #28: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #29: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #30: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #31: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #32: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #33: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #34: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #35: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #36: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #37: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #38: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #39: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #40: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #41: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #42: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #43: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #44: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #45: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #46: ffffffff8ab7a220 (rcu_read_lock){....}-{1:2}, at: smc_fback_forward_wakeup+0x0/0x3e0 net/smc/af_smc.c:2890 #47: ffff88806cb0bc58 (&ei->socket.wq.wait){..-.}-{2:2}, at: add_wait_queue+0x42/0x260 kernel/sched/wait.c:23 INFO: lockdep is turned off. CPU: 0 PID: 20927 Comm: syz-executor681 Not tainted 5.17.0-rc1-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+0x57/0x7d lib/dump_stack.c:106 __lock_acquire+0x187b/0x5410 kernel/locking/lockdep.c:5045 lock_acquire kernel/locking/lockdep.c:5639 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5604 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162 add_wait_queue+0x42/0x260 kernel/sched/wait.c:23 smc_fback_forward_wakeup+0x122/0x3e0 net/smc/af_smc.c:617 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 smc_fback_forward_wakeup+0x128/0x3e0 net/smc/af_smc.c:618 sk_error_report+0x30/0x230 net/core/sock.c:340 tcp_disconnect+0x143c/0x1d30 net/ipv4/tcp.c:3093 __tcp_close+0xcfc/0x1200 net/ipv4/tcp.c:2789 tcp_close+0x1b/0x70 net/ipv4/tcp.c:2919 inet_release+0xef/0x210 net/ipv4/af_inet.c:428 __sock_release net/socket.c:650 [inline] sock_release+0x7d/0x190 net/socket.c:678 smc_clcsock_release+0x8e/0xb0 net/smc/smc_close.c:34 __smc_release+0x2c8/0x4c0 net/smc/af_smc.c:172 smc_release+0x13a/0x3e0 net/smc/af_smc.c:209 __sock_release+0xbb/0x270 net/socket.c:650 sock_close+0xf/0x20 net/socket.c:1318 __fput+0x204/0x8d0 fs/file_table.c:311 task_work_run+0xc0/0x160 kernel/task_work.c:164 exit_task_work include/linux/task_work.h:32 [inline] do_exit+0x9a6/0x2500 kernel/exit.c:806 do_group_exit+0xb2/0x2a0 kernel/exit.c:935 get_signal+0x3aa/0x2130 kernel/signal.c:2862 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fed27823999 Code: Unable to access opcode bytes at RIP 0x7fed2782396f. RSP: 002b:00007fed277d5318 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fed278ab3e8 RCX: 00007fed27823999 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fed278ab3e8 RBP: 00007fed278ab3e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fed27879064 R13: 00007ffea6ce81df R14: 00007fed277d5400 R15: 0000000000022000