netlink: 4 bytes leftover after parsing attributes in process `syz.0.1585'.
hsr_slave_0: left promiscuous mode
hsr0 (unregistering): left promiscuous mode
------------[ cut here ]------------
WARNING: CPU: 1 PID: 12102 at net/core/dev.c:12149 unregister_netdevice_many_notify+0x1d96/0x2320 net/core/dev.c:12149
Modules linked in:
CPU: 1 UID: 0 PID: 12102 Comm: syz.0.1585 Not tainted 6.16.0-rc1-syzkaller-00223-gf40627350c10 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:unregister_netdevice_many_notify+0x1d96/0x2320 net/core/dev.c:12149
Code: 74 08 48 89 df e8 3a f1 d3 f8 48 8b 1b 48 89 1c 24 4c 39 e3 0f 84 83 01 00 00 e8 b5 79 70 f8 e9 17 f0 ff ff e8 ab 79 70 f8 90 <0f> 0b 90 e9 4f ff ff ff e8 9d 79 70 f8 90 0f 0b 90 eb 9c e8 92 79
RSP: 0018:ffffc90003fb6fa0 EFLAGS: 00010293
RAX: ffffffff894fe545 RBX: ffff88807fe461a8 RCX: ffff888025ef5a00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90003fb7170 R08: ffffffff8f50fa27 R09: 1ffffffff1ea1f44
R10: dffffc0000000000 R11: fffffbfff1ea1f45 R12: ffffc90003fb71e0
R13: ffff88807fe46c18 R14: ffff888079b73140 R15: dffffc0000000000
FS:  00007f1e4a7e16c0(0000) GS:ffff888125d52000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1e4a79ef98 CR3: 0000000078094000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rtnl_delete_link net/core/rtnetlink.c:3511 [inline]
 rtnl_dellink+0x488/0x710 net/core/rtnetlink.c:3553
 rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6944
 netlink_rcv_skb+0x205/0x470 net/netlink/af_netlink.c:2534
 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
 netlink_unicast+0x758/0x8d0 net/netlink/af_netlink.c:1339
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1883
 sock_sendmsg_nosec net/socket.c:712 [inline]
 __sock_sendmsg+0x219/0x270 net/socket.c:727
 ____sys_sendmsg+0x505/0x830 net/socket.c:2566
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2620
 __sys_sendmsg net/socket.c:2652 [inline]
 __do_sys_sendmsg net/socket.c:2657 [inline]
 __se_sys_sendmsg net/socket.c:2655 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2655
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1e4998e929
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:00007f1e4a7e1038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f1e49bb5fa0 RCX: 00007f1e4998e929
RDX: 0000000020044810 RSI: 00002000000003c0 RDI: 0000000000000009
RBP: 00007f1e49a10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1e49bb5fa0 R15: 00007fff6f1e6988
 </TASK>