[ 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