Warning: Permanently added '10.128.0.215' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.276218][ T21] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 27.516149][ T21] usb 1-1: Using ep0 maxpacket: 32 [ 27.636198][ T21] usb 1-1: config 0 has an invalid interface number: 77 but max is 0 [ 27.644361][ T21] usb 1-1: config 0 has no interface number 0 [ 27.650513][ T21] usb 1-1: New USB device found, idVendor=134c, idProduct=0004, bcdDevice=15.f3 [ 27.659546][ T21] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 27.669294][ T21] usb 1-1: config 0 descriptor?? [ 27.707010][ T21] hub 1-1:0.77: bad descriptor, ignoring hub [ 27.713152][ T21] hub: probe of 1-1:0.77 failed with error -5 [ 27.721596][ T21] input: USB Touchscreen 134c:0004 as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.77/input/input5 executing program [ 28.176195][ T21] usb 1-1: reset high-speed USB device number 2 using dummy_hcd [ 28.416434][ T21] usb 1-1: Using ep0 maxpacket: 32 [ 28.556166][ T21] ------------[ cut here ]------------ [ 28.561665][ T21] DEBUG_LOCKS_WARN_ON(lock->magic != lock) [ 28.561700][ T21] WARNING: CPU: 1 PID: 21 at kernel/locking/mutex.c:912 __mutex_lock+0xd31/0x1360 [ 28.576665][ T21] Kernel panic - not syncing: panic_on_warn set ... [ 28.583229][ T21] CPU: 1 PID: 21 Comm: kworker/1:1 Not tainted 5.3.0-rc2+ #25 [ 28.590654][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.600698][ T21] Workqueue: usb_hub_wq hub_event [ 28.605702][ T21] Call Trace: [ 28.608990][ T21] dump_stack+0xca/0x13e [ 28.613245][ T21] ? __mutex_lock+0xd20/0x1360 [ 28.617982][ T21] panic+0x2a3/0x6da [ 28.621847][ T21] ? add_taint.cold+0x16/0x16 [ 28.626499][ T21] ? __probe_kernel_read+0x188/0x1d0 [ 28.631758][ T21] ? __warn.cold+0x5/0x4a [ 28.636058][ T21] ? __warn+0xe3/0x1e0 [ 28.640102][ T21] ? __mutex_lock+0xd31/0x1360 [ 28.644843][ T21] __warn.cold+0x20/0x4a [ 28.649072][ T21] ? __mutex_lock+0xd31/0x1360 [ 28.653809][ T21] report_bug+0x262/0x2a0 [ 28.658121][ T21] do_error_trap+0x12b/0x1e0 [ 28.662685][ T21] ? __mutex_lock+0xd31/0x1360 [ 28.667427][ T21] do_invalid_op+0x32/0x40 [ 28.671814][ T21] ? __mutex_lock+0xd31/0x1360 [ 28.676551][ T21] invalid_op+0x23/0x30 [ 28.680682][ T21] RIP: 0010:__mutex_lock+0xd31/0x1360 [ 28.686038][ T21] 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 [ 28.705643][ T21] RSP: 0018:ffff8881da2f76b0 EFLAGS: 00010286 [ 28.711678][ T21] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 28.721372][ T21] RDX: 0000000000000000 RSI: ffffffff8128a0fd RDI: ffffed103b45eec8 [ 28.729335][ T21] RBP: ffff8881da2f7820 R08: ffff8881da236000 R09: fffffbfff0d9ee35 [ 28.737286][ T21] R10: fffffbfff0d9ee34 R11: ffffffff86cf71a3 R12: 0000000000000000 [ 28.745252][ T21] R13: dffffc0000000000 R14: ffff8881d285f948 R15: ffff8881d3bff728 [ 28.753228][ T21] ? vprintk_func+0x7d/0x113 [ 28.757801][ T21] ? usbtouch_reset_resume+0xb1/0x170 [ 28.763166][ T21] ? wait_for_completion+0x3c0/0x3c0 [ 28.768428][ T21] ? kfree+0xe4/0x2f0 [ 28.772385][ T21] ? mutex_trylock+0x2c0/0x2c0 [ 28.777126][ T21] ? usb_port_resume+0x503/0x1220 [ 28.782147][ T21] ? usb_port_suspend+0xa50/0xa50 [ 28.787149][ T21] ? usbtouch_reset_resume+0xb1/0x170 [ 28.792504][ T21] usbtouch_reset_resume+0xb1/0x170 [ 28.797684][ T21] ? elo_read_data+0x2a0/0x2a0 [ 28.802439][ T21] usb_resume_interface.isra.0+0x184/0x390 [ 28.808224][ T21] usb_resume_both+0x26a/0x7b0 [ 28.812965][ T21] ? mark_held_locks+0xe0/0xe0 [ 28.817704][ T21] ? usb_suspend_both+0x7b0/0x7b0 [ 28.822706][ T21] ? mark_held_locks+0x9f/0xe0 [ 28.827454][ T21] ? _raw_spin_unlock_irq+0x24/0x30 [ 28.832651][ T21] ? usb_runtime_suspend+0x120/0x120 [ 28.837917][ T21] __rpm_callback+0x27e/0x3c0 [ 28.842588][ T21] ? usb_runtime_suspend+0x120/0x120 [ 28.847846][ T21] rpm_callback+0x18f/0x230 [ 28.852336][ T21] ? usb_runtime_suspend+0x120/0x120 [ 28.857622][ T21] rpm_resume+0x10f7/0x1870 [ 28.862136][ T21] ? pm_runtime_get_if_in_use+0x260/0x260 [ 28.867834][ T21] ? do_raw_spin_lock+0x11a/0x280 [ 28.872832][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 28.877750][ T21] ? lock_acquire+0x127/0x320 [ 28.882403][ T21] ? __pm_runtime_resume+0xf5/0x180 [ 28.887578][ T21] __pm_runtime_resume+0x103/0x180 [ 28.892679][ T21] usb_autoresume_device+0x1e/0x60 [ 28.897786][ T21] usb_remote_wakeup+0x7b/0xb0 [ 28.902527][ T21] hub_event+0x246c/0x3640 [ 28.906921][ T21] ? find_held_lock+0x2d/0x110 [ 28.911660][ T21] ? mark_held_locks+0xe0/0xe0 [ 28.916402][ T21] ? hub_port_debounce+0x260/0x260 [ 28.921489][ T21] process_one_work+0x92b/0x1530 [ 28.926405][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 28.931760][ T21] ? do_raw_spin_lock+0x11a/0x280 [ 28.936766][ T21] worker_thread+0x96/0xe20 [ 28.941244][ T21] ? process_one_work+0x1530/0x1530 [ 28.946419][ T21] kthread+0x318/0x420 [ 28.950464][ T21] ? kthread_create_on_node+0xf0/0xf0 [ 28.955816][ T21] ret_from_fork+0x24/0x30 [ 28.960265][ T21] Kernel Offset: disabled [ 28.964585][ T21] Rebooting in 86400 seconds..