------------[ cut here ]------------ WARNING: CPU: 1 PID: 21413 at kernel/locking/lockdep.c:841 look_up_lock_class kernel/locking/lockdep.c:840 [inline] WARNING: CPU: 1 PID: 21413 at kernel/locking/lockdep.c:841 register_lock_class+0x299/0x16d0 kernel/locking/lockdep.c:1185 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 21413 Comm: syz-executor.5 Not tainted 5.4.0-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+0x96/0xe0 lib/dump_stack.c:118 panic+0x2a1/0x52a kernel/panic.c:221 __warn.cold.10+0x25/0x25 kernel/panic.c:582 report_bug+0x1aa/0x260 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x12d/0x1e0 arch/x86/kernel/traps.c:272 do_invalid_op+0x31/0x40 arch/x86/kernel/traps.c:291 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028 RIP: 0010:look_up_lock_class kernel/locking/lockdep.c:840 [inline] RIP: 0010:register_lock_class+0x299/0x16d0 kernel/locking/lockdep.c:1185 Code: 2d 38 da 0c 74 26 48 b8 00 00 00 00 00 fc ff df 48 89 ca 48 c1 ea 03 80 3c 02 00 0f 85 4a 0f 00 00 48 81 39 e0 15 81 8d 74 02 <0f> 0b 45 85 e4 0f 84 08 01 00 00 f6 04 24 01 0f 85 fe 00 00 00 41 RSP: 0018:ffff8880aa797a70 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: ffffffff8df68a80 RCX: ffff8880a5eb68a0 RDX: 1ffff11014bd6d14 RSI: ffffffff8928a940 RDI: ffff8880a5eb68b8 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: ffff888097836500 R12: 0000000000000000 R13: 0000000000000000 R14: ffffffff893f4460 R15: 1ffff110154f2f57 __lock_acquire+0x105/0x4550 kernel/locking/lockdep.c:3837 lock_acquire+0x12e/0x360 kernel/locking/lockdep.c:4487 __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:343 [inline] lock_sock_nested+0x35/0xf0 net/core/sock.c:2938 lock_sock include/net/sock.h:1527 [inline] inet_autobind+0xe/0x150 net/ipv4/af_inet.c:179 inet_dgram_connect+0x1da/0x270 net/ipv4/af_inet.c:569 __sys_connect+0x1ef/0x270 net/socket.c:1828 __do_sys_connect net/socket.c:1839 [inline] __se_sys_connect net/socket.c:1836 [inline] __x64_sys_connect+0x6a/0xb0 net/socket.c:1836 do_syscall_64+0x8e/0x4e0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x465889 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe756a2c188 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 000000000055bfa8 RCX: 0000000000465889 RDX: 000000000000001c RSI: 0000000020000080 RDI: 0000000000000005 RBP: 00000000004af68d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000055bfa8 R13: 00007fffe6615e1f R14: 00007fe756a2c300 R15: 0000000000022000 Kernel Offset: disabled Rebooting in 86400 seconds..