------------[ cut here ]------------ WARNING: CPU: 1 PID: 10963 at kernel/locking/lockdep.c:853 look_up_lock_class kernel/locking/lockdep.c:853 [inline] WARNING: CPU: 1 PID: 10963 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: 1 PID: 10963 Comm: syz-executor.0 Not tainted 5.8.0-rc6-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+0x18f/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:231 __warn.cold+0x20/0x45 kernel/panic.c:600 report_bug+0x1bd/0x210 lib/bug.c:198 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:235 exc_invalid_op+0x13/0x40 arch/x86/kernel/traps.c:255 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:540 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 40 45 e8 8b 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:ffffc90000c77a08 EFLAGS: 00010002 RAX: dffffc0000000000 RBX: 1ffff9200018ef48 RCX: ffffffff8c9181a0 RDX: 1ffff110051bb61f RSI: 0000000000000000 RDI: ffff888028ddb0f8 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffffffff88fd75c0 R13: ffffffff8d4b0ac0 R14: ffffffff8c5df658 R15: ffff888028ddb0e0 __lock_acquire+0xfa/0x56e0 kernel/locking/lockdep.c:4259 lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:4959 __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:3049 lock_sock include/net/sock.h:1577 [inline] selinux_netlbl_socket_connect+0x18/0x40 security/selinux/netlabel.c:607 selinux_socket_connect+0x65/0x80 security/selinux/hooks.c:4796 security_socket_connect+0x50/0xb0 security/security.c:2109 __sys_connect_file+0xa2/0x1a0 net/socket.c:1850 __sys_connect+0x160/0x190 net/socket.c:1871 __do_sys_connect net/socket.c:1882 [inline] __se_sys_connect net/socket.c:1879 [inline] __x64_sys_connect+0x6f/0xb0 net/socket.c:1879 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45c1f9 Code: 1d b2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 eb b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f284fc44c88 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00000000006f0e40 RCX: 000000000045c1f9 RDX: 000000000000001c RSI: 0000000020000180 RDI: 0000000000000005 RBP: 00000000004a920e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000074bfa0 R13: 00007ffcd4016c4f R14: 00007f284fc25000 R15: 0000000000000003 Kernel Offset: disabled Rebooting in 86400 seconds..