INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.200' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 37.473922][ T83] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 37.713899][ T83] usb 1-1: Using ep0 maxpacket: 32 [ 37.833999][ T83] usb 1-1: config 0 has an invalid interface number: 77 but max is 0 [ 37.842215][ T83] usb 1-1: config 0 has no interface number 0 [ 37.848508][ T83] usb 1-1: New USB device found, idVendor=134c, idProduct=0004, bcdDevice=15.f3 [ 37.857567][ T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 37.866962][ T83] usb 1-1: config 0 descriptor?? [ 37.904750][ T83] hub 1-1:0.77: bad descriptor, ignoring hub [ 37.910922][ T83] hub: probe of 1-1:0.77 failed with error -5 [ 37.919271][ T83] input: USB Touchscreen 134c:0004 as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.77/input/input5 executing program [ 42.474002][ T12] usb 1-1: reset high-speed USB device number 2 using dummy_hcd [ 42.713933][ T12] usb 1-1: Using ep0 maxpacket: 32 [ 42.854435][ T12] ------------[ cut here ]------------ [ 42.860517][ T12] DEBUG_LOCKS_WARN_ON(lock->magic != lock) [ 42.860556][ T12] WARNING: CPU: 0 PID: 12 at kernel/locking/mutex.c:912 __mutex_lock+0xd31/0x1360 [ 42.876747][ T12] Kernel panic - not syncing: panic_on_warn set ... [ 42.883949][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.3.0-rc2+ #25 [ 42.893127][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.904721][ T12] Workqueue: usb_hub_wq hub_event [ 42.910911][ T12] Call Trace: [ 42.915022][ T12] dump_stack+0xca/0x13e [ 42.920001][ T12] ? __mutex_lock+0xd20/0x1360 [ 42.925932][ T12] panic+0x2a3/0x6da [ 42.930532][ T12] ? add_taint.cold+0x16/0x16 [ 42.935309][ T12] ? __probe_kernel_read+0x188/0x1d0 [ 42.940959][ T12] ? __warn.cold+0x5/0x4a [ 42.945968][ T12] ? __warn+0xe3/0x1e0 [ 42.950119][ T12] ? __mutex_lock+0xd31/0x1360 [ 42.955444][ T12] __warn.cold+0x20/0x4a [ 42.960067][ T12] ? __mutex_lock+0xd31/0x1360 [ 42.964912][ T12] report_bug+0x262/0x2a0 [ 42.969686][ T12] do_error_trap+0x12b/0x1e0 [ 42.974937][ T12] ? __mutex_lock+0xd31/0x1360 [ 42.981970][ T12] do_invalid_op+0x32/0x40 [ 42.987031][ T12] ? __mutex_lock+0xd31/0x1360 [ 42.992719][ T12] invalid_op+0x23/0x30 [ 42.997390][ T12] RIP: 0010:__mutex_lock+0xd31/0x1360 [ 43.003348][ T12] Code: d2 0f 85 f6 05 00 00 44 8b 05 7b de 1c 02 45 85 c0 0f 85 0a f4 ff ff 48 c7 c6 c0 92 c6 85 48 c7 c7 60 90 c6 85 e8 f4 c4 a6 fb <0f> 0b e9 f0 f3 ff ff 65 48 8b 1c 25 00 ef 01 00 be 08 00 00 00 48 [ 43.025784][ T12] RSP: 0018:ffff8881da20f6b0 EFLAGS: 00010286 [ 43.032541][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 43.041429][ T12] RDX: 0000000000000000 RSI: ffffffff8128a0fd RDI: ffffed103b441ec8 [ 43.050299][ T12] RBP: ffff8881da20f820 R08: ffff8881da1f9800 R09: fffffbfff0d9ee35 [ 43.058771][ T12] R10: fffffbfff0d9ee34 R11: ffffffff86cf71a3 R12: 0000000000000000 [ 43.067409][ T12] R13: dffffc0000000000 R14: ffff8881d2bfaf48 R15: ffff8881d310c428 [ 43.075886][ T12] ? vprintk_func+0x7d/0x113 [ 43.080683][ T12] ? usbtouch_reset_resume+0xb1/0x170 [ 43.086355][ T12] ? wait_for_completion+0x3c0/0x3c0 [ 43.091969][ T12] ? kfree+0xe4/0x2f0 [ 43.096140][ T12] ? mutex_trylock+0x2c0/0x2c0 [ 43.100902][ T12] ? usb_port_resume+0x503/0x1220 [ 43.106676][ T12] ? usb_port_suspend+0xa50/0xa50 [ 43.112475][ T12] ? usbtouch_reset_resume+0xb1/0x170 [ 43.118244][ T12] usbtouch_reset_resume+0xb1/0x170 [ 43.124110][ T12] ? elo_read_data+0x2a0/0x2a0 [ 43.129509][ T12] usb_resume_interface.isra.0+0x184/0x390 [ 43.135505][ T12] usb_resume_both+0x26a/0x7b0 [ 43.140730][ T12] ? mark_held_locks+0xe0/0xe0 [ 43.145583][ T12] ? usb_suspend_both+0x7b0/0x7b0 [ 43.150862][ T12] ? mark_held_locks+0x9f/0xe0 [ 43.155827][ T12] ? _raw_spin_unlock_irq+0x24/0x30 [ 43.161292][ T12] ? usb_runtime_suspend+0x120/0x120 [ 43.167011][ T12] __rpm_callback+0x27e/0x3c0 [ 43.172590][ T12] ? usb_runtime_suspend+0x120/0x120 [ 43.178011][ T12] rpm_callback+0x18f/0x230 [ 43.183705][ T12] ? usb_runtime_suspend+0x120/0x120 [ 43.189263][ T12] rpm_resume+0x10f7/0x1870 [ 43.193970][ T12] ? pm_runtime_get_if_in_use+0x260/0x260 [ 43.199684][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 43.205922][ T12] ? rwlock_bug.part.0+0x90/0x90 [ 43.211969][ T12] ? lock_acquire+0x127/0x320 [ 43.216661][ T12] ? __pm_runtime_resume+0xf5/0x180 [ 43.222460][ T12] __pm_runtime_resume+0x103/0x180 [ 43.228525][ T12] usb_autoresume_device+0x1e/0x60 [ 43.234305][ T12] usb_remote_wakeup+0x7b/0xb0 [ 43.239504][ T12] hub_event+0x246c/0x3640 [ 43.244276][ T12] ? find_held_lock+0x2d/0x110 [ 43.249290][ T12] ? mark_held_locks+0xe0/0xe0 [ 43.254257][ T12] ? hub_port_debounce+0x260/0x260 [ 43.260135][ T12] process_one_work+0x92b/0x1530 [ 43.265665][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 43.271899][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 43.277081][ T12] worker_thread+0x96/0xe20 [ 43.281934][ T12] ? process_one_work+0x1530/0x1530 [ 43.287959][ T12] kthread+0x318/0x420 [ 43.292113][ T12] ? kthread_create_on_node+0xf0/0xf0 [ 43.297951][ T12] ret_from_fork+0x24/0x30 [ 43.303868][ T12] Kernel Offset: disabled [ 43.308598][ T12] Rebooting in 86400 seconds..