WARNING: CPU: 0 PID: 19457 at kernel/locking/lockdep.c:698 arch_local_save_flags arch/x86/include/asm/paravirt.h:784 [inline] WARNING: CPU: 0 PID: 19457 at kernel/locking/lockdep.c:698 look_up_lock_class kernel/locking/lockdep.c:689 [inline] WARNING: CPU: 0 PID: 19457 at kernel/locking/lockdep.c:698 register_lock_class+0x77b/0x11c0 kernel/locking/lockdep.c:748 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 19457 Comm: syz-executor.3 Not tainted 4.19.163-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+0x1fc/0x2fe lib/dump_stack.c:118 panic+0x26a/0x50e kernel/panic.c:186 __warn.cold+0x20/0x61 kernel/panic.c:541 netlink: 96 bytes leftover after parsing attributes in process `syz-executor.0'. report_bug+0x262/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296 netlink: 96 bytes leftover after parsing attributes in process `syz-executor.0'. invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038 RIP: 0010:look_up_lock_class kernel/locking/lockdep.c:698 [inline] RIP: 0010:register_lock_class+0x77b/0x11c0 kernel/locking/lockdep.c:748 Code: 8b 05 99 77 ea 0b 85 c0 0f 85 17 ff ff ff 48 c7 c6 40 1b 6a 88 48 c7 c7 00 19 6a 88 e8 39 cf ec ff 0f 0b e9 fd fe ff ff 0f 0b <0f> 0b e9 b3 fa ff ff 48 8d 70 01 48 69 c0 50 01 00 00 48 89 35 3c RSP: 0018:ffff888047e2fa20 EFLAGS: 00010087 RAX: dffffc0000000000 RBX: ffff888047f42160 RCX: 0000000000000000 RDX: 1ffff11008fe842f RSI: 0000000000000000 RDI: ffff888047f42178 RBP: 0000000000000000 R08: 0000000000000000 R09: 1ffff11008fc5f4c R10: ffffffff8d239720 R11: 0000000000000000 R12: ffffffff8cdc9d00 R13: ffffffff894bb020 R14: 1ffff11008fc5f4c R15: 0000000000000000 __lock_acquire+0x17d/0x3ff0 kernel/locking/lockdep.c:3303 overlayfs: filesystem on './file0' not supported as upperdir lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3907 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:168 spin_lock_bh include/linux/spinlock.h:334 [inline] lock_sock_nested+0x3b/0x110 net/core/sock.c:2864 lock_sock include/net/sock.h:1510 [inline] inet_autobind+0x1a/0x190 net/ipv4/af_inet.c:179 inet_dgram_connect+0x245/0x2d0 net/ipv4/af_inet.c:569 __sys_connect+0x265/0x2c0 net/socket.c:1663 __do_sys_connect net/socket.c:1674 [inline] __se_sys_connect net/socket.c:1671 [inline] __x64_sys_connect+0x6f/0xb0 net/socket.c:1671 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45e229 Code: 0d 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5817c6fc68 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e229 RDX: 000000000000001c RSI: 0000000020000080 RDI: 0000000000000005 RBP: 000000000119c068 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119c034 R13: 00007ffceed7337f R14: 00007f5817c709c0 R15: 000000000119c034 Kernel Offset: disabled Rebooting in 86400 seconds..