hsr0: entered promiscuous mode
netlink: 4 bytes leftover after parsing attributes in process `syz.3.794'.
hsr_slave_0: left promiscuous mode
hsr_slave_1: left promiscuous mode
hsr0 (unregistering): left promiscuous mode
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8961 at net/core/dev.c:12005 unregister_netdevice_many_notify+0x1f85/0x2510 net/core/dev.c:12005
Modules linked in:
CPU: 1 UID: 0 PID: 8961 Comm: syz.3.794 Not tainted 6.14.0-syzkaller-05877-g1a9239bb4253 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:unregister_netdevice_many_notify+0x1f85/0x2510 net/core/dev.c:12005
Code: c6 49 f8 48 8b 4c 24 10 48 8b 09 4c 39 f9 0f 84 8b 01 00 00 48 89 cb e8 e9 90 e1 f7 48 89 d9 e9 6d ed ff ff e8 dc 90 e1 f7 90 <0f> 0b 90 e9 49 ff ff ff e8 ce 90 e1 f7 90 0f 0b 90 eb 97 e8 c3 90
RSP: 0018:ffffc90002fe6f80 EFLAGS: 00010283
RAX: ffffffff89e1e684 RBX: ffff88805a92e1a8 RCX: 0000000000080000
RDX: ffffc9000c0d9000 RSI: 00000000000141e9 RDI: 00000000000141ea
RBP: ffffc90002fe7190 R08: ffffffff89e1e589 R09: 1ffffffff201cae4
R10: dffffc0000000000 R11: fffffbfff201cae5 R12: ffff88805a92e000
R13: dffffc0000000000 R14: ffff88805a92e000 R15: ffffc90002fe7200
FS:  00007f29819786c0(0000) GS:ffff8881250ea000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555947c3808 CR3: 000000005982c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rtnl_delete_link net/core/rtnetlink.c:3519 [inline]
 rtnl_dellink+0x53c/0x8c0 net/core/rtnetlink.c:3561
 rtnetlink_rcv_msg+0x80f/0xd70 net/core/rtnetlink.c:6952
 netlink_rcv_skb+0x208/0x480 net/netlink/af_netlink.c:2534
 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
 netlink_unicast+0x7f8/0x9a0 net/netlink/af_netlink.c:1339
 netlink_sendmsg+0x8c3/0xcd0 net/netlink/af_netlink.c:1883
 sock_sendmsg_nosec net/socket.c:712 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:727
 ____sys_sendmsg+0x523/0x860 net/socket.c:2566
 ___sys_sendmsg net/socket.c:2620 [inline]
 __sys_sendmsg+0x271/0x360 net/socket.c:2652
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2980b8d169
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:00007f2981978038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f2980da5fa0 RCX: 00007f2980b8d169
RDX: 0000000020040000 RSI: 00002000000003c0 RDI: 0000000000000005
RBP: 00007f2980c0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f2980da5fa0 R15: 00007ffec9271468
 </TASK>