syzbot

hsr_slave_0: left promiscuous mode
hsr_slave_1: left promiscuous mode
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8914 at net/core/dev.c:11919 unregister_netdevice_many_notify+0x19fa/0x1f10 net/core/dev.c:11919
Modules linked in:
CPU: 0 UID: 0 PID: 8914 Comm: syz.3.897 Not tainted 6.14.0-rc5-syzkaller-00131-gd0a4a1b36d7a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:unregister_netdevice_many_notify+0x19fa/0x1f10 net/core/dev.c:11919
Code: 08 48 89 df e8 e7 05 5c f8 48 8b 1b 48 89 5c 24 08 4c 39 fb 0f 84 25 01 00 00 e8 81 ca f4 f7 e9 d2 f0 ff ff e8 77 ca f4 f7 90 <0f> 0b 90 e9 51 ff ff ff e8 69 ca f4 f7 90 0f 0b 90 eb 9f e8 5e ca
RSP: 0018:ffffc9000467efa0 EFLAGS: 00010283
RAX: ffffffff89cd0439 RBX: ffff8880606441a8 RCX: 0000000000080000
RDX: ffffc90010839000 RSI: 00000000000132ac RDI: 00000000000132ad
RBP: ffffc9000467f190 R08: ffffffff89cd0346 R09: 1ffffffff1fdab34
R10: dffffc0000000000 R11: fffffbfff1fdab35 R12: dead000000000100
R13: dffffc0000000000 R14: ffff888060644000 R15: ffffc9000467f200
FS:  00007f91d13e16c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000400000000040 CR3: 0000000031b48000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rtnl_delete_link net/core/rtnetlink.c:3486 [inline]
 rtnl_dellink+0x52b/0x8d0 net/core/rtnetlink.c:3528
 rtnetlink_rcv_msg+0x791/0xcf0 net/core/rtnetlink.c:6912
 netlink_rcv_skb+0x206/0x480 net/netlink/af_netlink.c:2533
 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]
 netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1338
 netlink_sendmsg+0x8de/0xcb0 net/netlink/af_netlink.c:1882
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:733
 ____sys_sendmsg+0x53a/0x860 net/socket.c:2573
 ___sys_sendmsg net/socket.c:2627 [inline]
 __sys_sendmsg+0x269/0x350 net/socket.c:2659
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f91d058d169
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f91d13e1038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f91d07a6160 RCX: 00007f91d058d169
RDX: 0000000000000000 RSI: 00004000000003c0 RDI: 0000000000000009
RBP: 00007f91d060e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f91d07a6160 R15: 00007ffdbbf5cc98
 </TASK>