bond4 (unregistering): Released all slaves
------------[ cut here ]------------
WARNING: CPU: 0 PID: 9850 at net/core/dev.c:9370 netdev_has_any_lower_dev net/core/dev.c:6932 [inline]
WARNING: CPU: 0 PID: 9850 at net/core/dev.c:9370 rollback_registered_many+0x494/0x4e0 net/core/dev.c:9371
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 9850 Comm: syz-executor.4 Not tainted 5.9.0-rc8-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+0xa3/0xcc lib/dump_stack.c:118
 panic+0x135/0x31a kernel/panic.c:231
 __warn.cold.13+0x20/0x25 kernel/panic.c:600
 report_bug+0xc0/0xf0 lib/bug.c:198
 handle_bug+0x35/0x90 arch/x86/kernel/traps.c:234
 exc_invalid_op+0x13/0x60 arch/x86/kernel/traps.c:254
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536
RIP: 0010:rollback_registered_many+0x494/0x4e0 net/core/dev.c:9370
Code: c8 fe ff ff ba 14 1b 00 00 48 c7 c6 df e4 05 84 48 c7 c7 c0 f7 e6 83 c6 05 15 89 d6 01 01 e8 ce c4 94 fe 0f 0b e9 a2 fe ff ff <0f> 0b e9 8e fe ff ff 0f 0b 80 3d ed 88 d6 01 00 0f 85 9b fb ff ff
RSP: 0018:ffffc90005797890 EFLAGS: 00010202
RAX: ffff888110d7f801 RBX: ffff8881100d4000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff83ed9c6b RDI: ffffffff84533fa0
RBP: ffff888111131800 R08: 0000000000000001 R09: 0000000000000001
R10: ffff88810e0c2080 R11: f99024ef41b71c09 R12: ffffc90005797908
R13: ffffffff828866a0 R14: ffff88811f054500 R15: 0000000000000000
 unregister_netdevice_many+0x12/0x70 net/core/dev.c:10509
 rtnl_delete_link+0x3f/0x70 net/core/rtnetlink.c:3055
 rtnl_dellink+0x13e/0x2d0 net/core/rtnetlink.c:3107
 rtnetlink_rcv_msg+0x173/0x480 net/core/rtnetlink.c:5563
 netlink_rcv_skb+0x41/0x110 net/netlink/af_netlink.c:2470
 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
 netlink_unicast+0x19a/0x270 net/netlink/af_netlink.c:1330
 netlink_sendmsg+0x248/0x480 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0x2b/0x40 net/socket.c:671
 ____sys_sendmsg+0x1ed/0x230 net/socket.c:2353
 ___sys_sendmsg+0x77/0xb0 net/socket.c:2407
 __sys_sendmsg+0x52/0xa0 net/socket.c:2440
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45d4d9
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:00007f0652158c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000002cd80 RCX: 000000000045d4d9
RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000009
RBP: 000000000118d020 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cfec
R13: 000000000169fb6f R14: 00007f06521599c0 R15: 000000000118cfec
Kernel Offset: disabled
Rebooting in 86400 seconds..