WARNING: CPU: 0 PID: 8053 at kernel/locking/lockdep.c:746 arch_local_save_flags arch/x86/include/asm/paravirt.h:762 [inline] WARNING: CPU: 0 PID: 8053 at kernel/locking/lockdep.c:746 arch_local_save_flags arch/x86/include/asm/paravirt.h:760 [inline] WARNING: CPU: 0 PID: 8053 at kernel/locking/lockdep.c:746 look_up_lock_class kernel/locking/lockdep.c:737 [inline] WARNING: CPU: 0 PID: 8053 at kernel/locking/lockdep.c:746 register_lock_class+0xe10/0x1860 kernel/locking/lockdep.c:1090 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 8053 Comm: syz-executor.0 Not tainted 5.1.0-rc7+ #94 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+0x172/0x1f0 lib/dump_stack.c:113 panic+0x2cb/0x65c kernel/panic.c:214 __warn.cold+0x20/0x45 kernel/panic.c:571 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973 RIP: 0010:look_up_lock_class kernel/locking/lockdep.c:746 [inline] RIP: 0010:register_lock_class+0xe10/0x1860 kernel/locking/lockdep.c:1090 Code: 00 48 89 da 4d 8b 76 c0 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 23 07 00 00 4c 89 33 e9 e3 f4 ff ff 0f 0b <0f> 0b e9 ea f3 ff ff 44 89 e0 4c 8b 95 50 ff ff ff 83 c0 01 4c 8b RSP: 0018:ffff88809d447a50 EFLAGS: 00010087 RAX: dffffc0000000000 RBX: ffff88809f20a8a0 RCX: 0000000000000000 RDX: 1ffff11013e41517 RSI: 0000000000000000 RDI: ffff88809f20a8b8 RBP: ffff88809d447b18 R08: 1ffff11013a88f52 R09: ffffffff8a5c9a20 R10: ffffffff8a0b27f8 R11: 0000000000000000 R12: ffffffff8a11ed80 R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff87fba320 __lock_acquire+0xf9/0x3fb0 kernel/locking/lockdep.c:3582 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4211 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x33/0x50 kernel/locking/spinlock.c:168 spin_lock_bh include/linux/spinlock.h:334 [inline] lock_sock_nested+0x41/0x120 net/core/sock.c:2912 lock_sock include/net/sock.h:1513 [inline] inet_autobind+0x20/0x1a0 net/ipv4/af_inet.c:179 inet_dgram_connect+0x252/0x2e0 net/ipv4/af_inet.c:569 __sys_connect+0x266/0x330 net/socket.c:1808 __do_sys_connect net/socket.c:1819 [inline] __se_sys_connect net/socket.c:1816 [inline] __ia32_sys_connect+0x72/0xb0 net/socket.c:1816 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x281/0xc98 arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7f09869 Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 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:00000000f7ee40cc EFLAGS: 00000296 ORIG_RAX: 000000000000016a RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000020000080 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..