[  OK  ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch.
[  OK  ] Started Getty on tty6.
[  OK  ] Started Getty on tty5.
[  OK  ] Started Getty on tty4.
[  OK  ] Started Getty on tty3.
[  OK  ] Started Getty on tty2.
[  OK  ] Started Getty on tty1.
[  OK  ] Started Serial Getty on ttyS0.
[  OK  ] Reached target Login Prompts.
[  OK  ] Reached target Multi-User System.
[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
         Starting Load/Save RF Kill Switch Status...
[  OK  ] Started Update UTMP about System Runlevel Changes.
[  OK  ] Started Load/Save RF Kill Switch Status.
Warning: Permanently added '10.128.1.1' (ECDSA) to the list of known hosts.
[   84.410080][   T38] audit: type=1400 audit(1620484049.234:8): avc:  denied  { execmem } for  pid=8393 comm="syz-executor924" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[   84.676705][   T37] usb 1-1: new high-speed USB device number 2 using dummy_hcd
[   84.916530][   T37] usb 1-1: Using ep0 maxpacket: 32

Debian GNU/Linux 9 syzkaller ttyS0

syzkaller login: [   85.077412][   T37] usb 1-1: unable to get BOS descriptor or descriptor too short
[   85.396674][   T37] usb 1-1: string descriptor 0 read error: -22
[   85.403963][   T37] usb 1-1: New USB device found, idVendor=0af0, idProduct=6811, bcdDevice=d7.8a
[   85.414782][   T37] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   85.428249][   T37] usb 1-1: config 0 descriptor??
[   85.469222][   T37] hso 1-1:0.0: Can't find BULK IN endpoint
[   85.482287][   T37] ------------[ cut here ]------------
[   85.488283][   T37] WARNING: CPU: 1 PID: 37 at net/core/dev.c:10902 unregister_netdevice_many+0x205/0x1760
[   85.499145][   T37] Modules linked in:
[   85.503345][   T37] CPU: 1 PID: 37 Comm: kworker/1:1 Not tainted 5.12.0-syzkaller #0
[   85.512547][   T37] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   85.523882][   T37] Workqueue: usb_hub_wq hub_event
[   85.529779][   T37] RIP: 0010:unregister_netdevice_many+0x205/0x1760
[   85.537075][   T37] Code: 05 00 00 31 ff 44 89 fe e8 b8 7f 70 fa 45 84 ff 0f 85 49 ff ff ff e8 9a 77 70 fa 0f 1f 44 00 00 e8 90 77 70 fa e8 8b 77 70 fa <0f> 0b 4c 89 ef e8 b1 cb cc fc 31 ff 41 89 c5 89 c6 e8 85 7f 70 fa
[   85.559111][   T37] RSP: 0018:ffffc90000e46f30 EFLAGS: 00010293
[   85.565423][   T37] RAX: 0000000000000000 RBX: ffff888028bd0000 RCX: 0000000000000000
[   85.574710][   T37] RDX: ffff8880121d0200 RSI: ffffffff87031b45 RDI: 0000000000000003
[   85.584138][   T37] RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000
[   85.593382][   T37] R10: ffffffff87031b28 R11: 0000000000000000 R12: ffffc90000e47000
[   85.602592][   T37] R13: ffff888028bd0060 R14: ffffc90000e46fa0 R15: 0000000000000000
[   85.611928][   T37] FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
[   85.621946][   T37] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   85.629706][   T37] CR2: 00007fd0a8b07008 CR3: 0000000019c6b000 CR4: 00000000001506e0
[   85.638600][   T37] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   85.648166][   T37] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   85.657420][   T37] Call Trace:
[   85.660987][   T37]  ? __mutex_lock+0x620/0x1120
[   85.666042][   T37]  ? net_tx_action+0xbe0/0