[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.37' (ECDSA) to the list of known hosts. syzkaller login: [ 48.670376][ T2951] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 49.030651][ T2951] usb 1-1: New USB device found, idVendor=0cf3, idProduct=9374, bcdDevice=bc.3b [ 49.039831][ T2951] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 49.056335][ T2951] usb 1-1: config 0 descriptor?? [ 49.321161][ T5] ------------[ cut here ]------------ [ 49.326705][ T5] WARNING: CPU: 0 PID: 5 at drivers/net/wireless/ath/ath6kl/htc_pipe.c:963 ath6kl_htc_pipe_rx_complete+0xdc2/0xf90 [ 49.339818][ T5] Modules linked in: [ 49.344305][ T5] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.14.0-rc6-syzkaller #0 [ 49.352998][ T5] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.363601][ T5] Workqueue: events ath6kl_usb_io_comp_work [ 49.369486][ T5] RIP: 0010:ath6kl_htc_pipe_rx_complete+0xdc2/0xf90 [ 49.377065][ T5] Code: 48 8b 7c 24 58 e8 8e cc 68 04 31 db 45 31 ed e9 01 f4 ff ff e8 1f e1 0c fc 0f 0b bb ea ff ff ff e9 f0 f3 ff ff e8 0e e1 0c fc <0f> 0b 48 c7 c7 c0 87 d4 8a 31 c0 e8 8e 40 fe ff bb ea ff ff ff e9 [ 49.397235][ T5] RSP: 0018:ffffc90000ca7aa0 EFLAGS: 00010293 [ 49.403822][ T5] RAX: ffffffff857356c2 RBX: ffff888039450dd0 RCX: ffff888012330000 [ 49.412490][ T5] RDX: 0000000000000000 RSI: ffff8880364703c0 RDI: ffff888039450d60 [ 49.421018][ T5] RBP: ffffc90000ca7bf0 R08: ffffffff857922c7 R09: fffffbfff1f5e7d2 [ 49.428979][ T5] R10: fffffbfff1f5e7d2 R11: 0000000000000000 R12: dffffc0000000000 [ 49.437795][ T5] R13: ffff8880364703c0 R14: 1ffff92000194f6c R15: dffffc0000000000 [ 49.446313][ T5] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 49.455816][ T5] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.462953][ T5] CR2: 00007f6407051000 CR3: 00000000141c6000 CR4: 00000000001506f0 [ 4