------------[ cut here ]------------ WARNING: CPU: 1 PID: 8433 at kernel/locking/lockdep.c:872 look_up_lock_class kernel/locking/lockdep.c:872 [inline] WARNING: CPU: 1 PID: 8433 at kernel/locking/lockdep.c:872 register_lock_class+0x1fd/0x1760 kernel/locking/lockdep.c:1220 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 8433 Comm: syz-executor.1 Not tainted 5.7.0-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:77 [inline] dump_stack+0x188/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x35 kernel/panic.c:582 report_bug+0x27b/0x2f0 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:175 [inline] fixup_bug arch/x86/kernel/traps.c:170 [inline] do_error_trap+0x12b/0x220 arch/x86/kernel/traps.c:267 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:look_up_lock_class kernel/locking/lockdep.c:872 [inline] RIP: 0010:register_lock_class+0x1fd/0x1760 kernel/locking/lockdep.c:1220 Code: b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 66 10 00 00 4c 3b 7d 18 74 0c 48 81 7d 00 80 84 bd 8b 74 02 <0f> 0b 45 85 ed 0f 84 1b 04 00 00 41 83 e6 01 0f 85 11 04 00 00 41 RSP: 0018:ffffc900194f79c0 EFLAGS: 00010002 RAX: dffffc0000000000 RBX: ffffffff8c66c0e0 RCX: 1ffffffff185d212 RDX: 1ffff11041e47c1f RSI: 0000000000000000 RDI: ffff88820f23e0f8 RBP: ffff88820f23e0e0 R08: ffffffff8c331540 R09: 0000000000000000 R10: ffffffff8a8992c7 R11: 0000000000000000 R12: 1ffff9200329ef40 R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff88db0ec0 __lock_acquire+0x104/0x4c50 kernel/locking/lockdep.c:4234 lock_acquire+0x1f2/0x8f0 kernel/locking/lockdep.c:4934 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:358 [inline] lock_sock_nested+0x3b/0x110 net/core/sock.c:2958 lock_sock include/net/sock.h:1574 [inline] inet_autobind+0x1a/0x190 net/ipv4/af_inet.c:179 inet_dgram_connect+0x245/0x2d0 net/ipv4/af_inet.c:569 __sys_connect_file+0x155/0x1a0 net/socket.c:1859 __sys_connect+0x160/0x190 net/socket.c:1876 __do_sys_connect net/socket.c:1887 [inline] __se_sys_connect net/socket.c:1884 [inline] __ia32_sys_connect+0x6e/0xb0 net/socket.c:1884 do_syscall_32_irqs_on arch/x86/entry/common.c:337 [inline] do_fast_syscall_32+0x270/0xe90 arch/x86/entry/common.c:396 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 Kernel Offset: disabled Rebooting in 86400 seconds..