bond0 (unregistering): (slave bridge21): Releasing backup interface bond0 (unregistering): Released all slaves ------------[ cut here ]------------ WARNING: CPU: 1 PID: 17536 at net/core/dev.c:10867 unregister_netdevice_many+0x144e/0x1980 net/core/dev.c:10867 Modules linked in: CPU: 1 PID: 17536 Comm: syz-executor.1 Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 RIP: 0010:unregister_netdevice_many+0x144e/0x1980 net/core/dev.c:10867 Code: 0b e9 93 f0 ff ff e8 31 a8 23 fa be 04 00 00 00 4c 89 f7 e8 e4 eb a7 fc e9 2a fb ff ff 48 89 ef e9 fd f8 ff ff e8 12 a8 23 fa <0f> 0b e9 d8 f9 ff ff e8 06 a8 23 fa 0f b6 1d c3 7e 73 06 31 ff 89 RSP: 0018:ffffc90005db7268 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff8880208040b0 RCX: ffffc90017624000 RDX: 0000000000040000 RSI: ffffffff8757a22e RDI: 0000000000000005 RBP: ffff88802063f480 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 000000000008c07d R12: 0000000000000000 R13: ffff88802063f480 R14: ffff888020804000 R15: dffffc0000000000 FS: 00007f0e32557700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fde8617f1b8 CR3: 000000007602a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 000000000000003b DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: rtnl_delete_link net/core/rtnetlink.c:3123 [inline] rtnl_dellink+0x354/0xa90 net/core/rtnetlink.c:3174 rtnetlink_rcv_msg+0x43a/0xca0 net/core/rtnetlink.c:6091 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2540 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:734 ____sys_sendmsg+0x712/0x8c0 net/socket.c:2482 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536 __sys_sendmsg+0xf3/0x1c0 net/socket.c:2565 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f0e3148b5a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0e32557168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f0e315abf80 RCX: 00007f0e3148b5a9 RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000003 RBP: 00007f0e314e6580 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f0e31adfb1f R14: 00007f0e32557300 R15: 0000000000022000