------------[ cut here ]------------
WARNING: CPU: 3 PID: 8866 at kernel/locking/lockdep.c:853 look_up_lock_class kernel/locking/lockdep.c:853 [inline]
WARNING: CPU: 3 PID: 8866 at kernel/locking/lockdep.c:853 register_lock_class+0x1f0/0x1630 kernel/locking/lockdep.c:1201
Kernel panic - not syncing: panic_on_warn set ...
CPU: 3 PID: 8866 Comm: syz-executor.0 Not tainted 5.9.0-rc8-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x198/0x1fd lib/dump_stack.c:118
 panic+0x382/0x7fb kernel/panic.c:231
 __warn.cold+0x20/0x4b kernel/panic.c:600
 report_bug+0x1bd/0x210 lib/bug.c:198
 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234
 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536
RIP: 0010:look_up_lock_class kernel/locking/lockdep.c:853 [inline]
RIP: 0010:register_lock_class+0x1f0/0x1630 kernel/locking/lockdep.c:1201
Code: 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 fd 0f 00 00 4d 3b 67 18 74 0b 49 81 3f 00 e5 9a 8c 74 02 <0f> 0b 85 ed 0f 84 b2 00 00 00 f6 44 24 04 01 0f 85 a7 00 00 00 83
RSP: 0018:ffffc9000c747a20 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 1ffff920018e8f4b RCX: ffffffff8d442160
RDX: 1ffff1100315ef17 RSI: 0000000000000000 RDI: ffff888018af78b8
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff89444680
R13: ffffffff8dfe8900 R14: ffffffff8d107b80 R15: ffff888018af78a0
 __lock_acquire+0x101/0x5780 kernel/locking/lockdep.c:4320
 lock_acquire+0x1f3/0xaf0 kernel/locking/lockdep.c:5029
 __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:359 [inline]
 lock_sock_nested+0x3b/0x110 net/core/sock.c:3048
 lock_sock include/net/sock.h:1583 [inline]
 inet_autobind+0x1a/0x190 net/ipv4/af_inet.c:180
 inet_dgram_connect+0x245/0x2d0 net/ipv4/af_inet.c:575
 __sys_connect_file+0x155/0x1a0 net/socket.c:1852
 __sys_connect+0x161/0x190 net/socket.c:1869
 __do_sys_connect net/socket.c:1879 [inline]
 __se_sys_connect net/socket.c:1876 [inline]
 __ia32_sys_connect+0x6e/0xb0 net/socket.c:1876
 do_syscall_32_irqs_on arch/x86/entry/common.c:78 [inline]
 __do_fast_syscall_32+0x60/0x90 arch/x86/entry/common.c:137
 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:160
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7f6a549
Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f77430bc EFLAGS: 00000296 ORIG_RAX: 000000000000016a
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000020000180
RDX: 000000000000001c RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..