------------[ cut here ]------------ WARNING: CPU: 1 PID: 19165 at kernel/locking/lockdep.c:853 look_up_lock_class kernel/locking/lockdep.c:853 [inline] WARNING: CPU: 1 PID: 19165 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: 19165 Comm: syz-executor.3 Not tainted 5.9.0-rc3-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+0x198/0x1fd lib/dump_stack.c:118 panic+0x347/0x7c0 kernel/panic.c:231 __warn.cold+0x20/0x46 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 b5 ed 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:ffffc900085d7a18 EFLAGS: 00010002 RAX: dffffc0000000000 RBX: 1ffff920010baf4a RCX: ffffffff8c96f160 RDX: 1ffff110121e2a17 RSI: 0000000000000000 RDI: ffff888090f150b8 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: fffffbfff18be353 R11: ffffffff8c635648 R12: ffffffff88fea880 R13: ffffffff8d509440 R14: ffffffff8c635648 R15: ffff888090f150a0 __lock_acquire+0xf9/0x5570 kernel/locking/lockdep.c:4305 reacquire_held_locks+0x20b/0x530 kernel/locking/lockdep.c:4564 __lock_release kernel/locking/lockdep.c:4752 [inline] lock_release+0x39d/0x8f0 kernel/locking/lockdep.c:5026 sock_release_ownership include/net/sock.h:1548 [inline] release_sock+0x171/0x1b0 net/core/sock.c:3073 ip6_datagram_connect+0x36/0x40 net/ipv6/datagram.c:273 inet_dgram_connect+0x14a/0x2d0 net/ipv4/af_inet.c:577 __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] __x64_sys_connect+0x6f/0xb0 net/socket.c:1876 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45d5b9 Code: 5d b4 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 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fb0a603dc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000002300 RCX: 000000000045d5b9 RDX: 000000000000001c RSI: 0000000020000080 RDI: 0000000000000005 RBP: 000000000118d020 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cfec R13: 00007ffcd5add03f R14: 00007fb0a603e9c0 R15: 000000000118cfec Kernel Offset: disabled Rebooting in 86400 seconds..