[ 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... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.111' (ECDSA) to the list of known hosts. syzkaller login: [ 68.143237][ T4826] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 68.503617][ T4826] usb 1-1: New USB device found, idVendor=0cf3, idProduct=9374, bcdDevice=bc.3b [ 68.512812][ T4826] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 68.529595][ T4826] usb 1-1: config 0 descriptor?? [ 68.794859][ T5] ------------[ cut here ]------------ [ 68.800518][ T5] WARNING: CPU: 0 PID: 5 at drivers/net/wireless/ath/ath6kl/htc_pipe.c:963 ath6kl_htc_pipe_rx_complete+0xd7e/0x1090 [ 68.833115][ T5] Modules linked in: [ 68.837062][ T5] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.13.0-rc2-next-20210518-syzkaller #0 [ 68.846571][ T5] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.856872][ T5] Workqueue: events ath6kl_usb_io_comp_work [ 68.863119][ T5] RIP: 0010:ath6kl_htc_pipe_rx_complete+0xd7e/0x1090 [ 68.869982][ T5] Code: e4 e8 96 d3 16 04 48 c7 44 24 38 00 00 00 00 e9 7f fa ff ff e8 33 51 6c fc 8b 9c 24 8c 00 00 00 e9 8a f8 ff ff e8 22 51 6c fc <0f> 0b 48 c7 c7 20 9f 1a 8a 41 bc ea ff ff ff e8 0e 87 ee 03 e9 50 [ 68.889885][ T5] RSP: 0000:ffffc90000ca7bb0 EFLAGS: 00010293 [ 68.896090][ T5] RAX: 0000000000000000 RBX: ffff888035f70d00 RCX: 0000000000000000 [ 68.904734][ T5] RDX: ffff888012348000 RSI: ffffffff850982ae RDI: ffff888035f70d70 [ 68.912716][ T5] RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffffff90440a2f [ 68.920763][ T5] R10: ffffffff850e5ca9 R11: 0000000000000000 R12: ffff88801d6e2000 [ 68.928917][ T5] R13: ffff888035f70d00 R14: 0000000000000000 R15: ffff88801d6e2920 [ 68.937022][ T5] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000