Warning: Permanently added '10.128.0.123' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 25.496105][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 25.736011][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 25.856108][ T12] usb 1-1: config 0 has an invalid interface number: 174 but max is 0 [ 25.864367][ T12] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 25.874653][ T12] usb 1-1: config 0 has no interface number 0 [ 25.880816][ T12] usb 1-1: New USB device found, idVendor=04e7, idProduct=0020, bcdDevice=4e.81 [ 25.889910][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 25.899115][ T12] usb 1-1: config 0 descriptor?? [ 25.939253][ T12] input: USB Touchscreen 04e7:0020 as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.174/input/input5 [ 26.136472][ T1721] ------------[ cut here ]------------ [ 26.141942][ T1721] DEBUG_LOCKS_WARN_ON(lock->magic != lock) [ 26.141974][ T1721] WARNING: CPU: 0 PID: 1721 at kernel/locking/mutex.c:912 __mutex_lock+0xd31/0x1360 [ 26.157086][ T1721] Kernel panic - not syncing: panic_on_warn set ... [ 26.163648][ T1721] CPU: 0 PID: 1721 Comm: syz-executor345 Not tainted 5.3.0-rc2+ #23 [ 26.171617][ T1721] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.181674][ T1721] Call Trace: [ 26.184943][ T1721] dump_stack+0xca/0x13e [ 26.189171][ T1721] ? __mutex_lock+0xd20/0x1360 [ 26.193913][ T1721] panic+0x2a3/0x6da [ 26.197783][ T1721] ? add_taint.cold+0x16/0x16 [ 26.202523][ T1721] ? __probe_kernel_read+0x188/0x1d0 [ 26.207786][ T1721] ? __warn.cold+0x5/0x4a [ 26.212092][ T1721] ? __warn+0xe3/0x1e0 [ 26.216136][ T1721] ? __mutex_lock+0xd31/0x1360 [ 26.220889][ T1721] __warn.cold+0x20/0x4a [ 26.225112][ T1721] ? __mutex_lock+0xd31/0x1360 [ 26.229853][ T1721] report_bug+0x262/0x2a0 [ 26.235512][ T1721] do_error_trap+0x12b/0x1e0 [ 26.240079][ T1721] ? __mutex_lock+0xd31/0x1360 [ 26.244834][ T1721] do_invalid_op+0x32/0x40 [ 26.249228][ T1721] ? __mutex_lock+0xd31/0x1360 [ 26.253975][ T1721] invalid_op+0x23/0x30 [ 26.258110][ T1721] RIP: 0010:__mutex_lock+0xd31/0x1360 [ 26.263467][ T1721] Code: d2 0f 85 f6 05 00 00 44 8b 05 bb 99 0a 02 45 85 c0 0f 85 0a f4 ff ff 48 c7 c6 00 87 a6 85 48 c7 c7 a0 84 a6 85 e8 f4 24 b8 fb <0f> 0b e9 f0 f3 ff ff 65 48 8b 1c 25 00 ef 01 00 be 08 00 00 00 48 [ 26.283161][ T1721] RSP: 0018:ffff8881d341f740 EFLAGS: 00010282 [ 26.289205][ T1721] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 26.297182][ T1721] RDX: 0000000000000000 RSI: ffffffff812830fd RDI: ffffed103a683eda [ 26.305167][ T1721] RBP: ffff8881d341f8b0 R08: ffff8881d3b0c800 R09: fffffbfff0d5eb25 [ 26.320851][ T1721] R10: fffffbfff0d5eb24 R11: ffffffff86af5923 R12: 0000000000000000 [ 26.328821][ T1721] R13: dffffc0000000000 R14: ffff8881d63d0a48 R15: ffff8881d6938b40 [ 26.336779][ T1721] ? vprintk_func+0x7d/0x113 [ 26.341367][ T1721] ? usbtouch_open+0x101/0x310 [ 26.346130][ T1721] ? mutex_trylock+0x2c0/0x2c0 [ 26.350873][ T1721] ? mark_lock+0xbc/0x1130 [ 26.355270][ T1721] ? mark_held_locks+0x9f/0xe0 [ 26.360073][ T1721] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 26.365990][ T1721] ? lockdep_hardirqs_on+0x379/0x580 [ 26.371279][ T1721] ? usbtouch_open+0x101/0x310 [ 26.376087][ T1721] usbtouch_open+0x101/0x310 [ 26.380682][ T1721] input_open_device+0x170/0x280 [ 26.385623][ T1721] ? usbtouch_close+0x200/0x200 [ 26.390496][ T1721] evdev_open+0x3fe/0x510 [ 26.394847][ T1721] ? evdev_free+0x70/0x70 [ 26.399355][ T1721] chrdev_open+0x219/0x5c0 [ 26.403804][ T1721] ? cdev_put.part.0+0x50/0x50 [ 26.408566][ T1721] do_dentry_open+0x494/0x1120 [ 26.413334][ T1721] ? cdev_put.part.0+0x50/0x50 [ 26.418097][ T1721] ? chmod_common+0x3c0/0x3c0 [ 26.422879][ T1721] ? inode_permission+0xbe/0x3a0 [ 26.427849][ T1721] path_openat+0x1430/0x3f50 [ 26.432449][ T1721] ? save_stack+0x1b/0x80 [ 26.436760][ T1721] ? do_sys_open+0x294/0x580 [ 26.441325][ T1721] ? do_syscall_64+0xb7/0x580 [ 26.445976][ T1721] ? path_lookupat.isra.0+0x8d0/0x8d0 [ 26.451325][ T1721] ? __lock_acquire+0x145e/0x3b50 [ 26.456324][ T1721] do_filp_open+0x1a1/0x280 [ 26.460804][ T1721] ? may_open_dev+0xf0/0xf0 [ 26.465282][ T1721] ? __alloc_fd+0x46d/0x600 [ 26.469760][ T1721] ? do_raw_spin_lock+0x11a/0x280 [ 26.474759][ T1721] ? do_raw_spin_unlock+0x50/0x220 [ 26.479847][ T1721] ? _raw_spin_unlock+0x1f/0x30 [ 26.484673][ T1721] ? __alloc_fd+0x46d/0x600 [ 26.489173][ T1721] do_sys_open+0x3c0/0x580 [ 26.493584][ T1721] ? filp_open+0x70/0x70 [ 26.497805][ T1721] ? trace_hardirqs_off_caller+0x55/0x1e0 [ 26.503500][ T1721] do_syscall_64+0xb7/0x580 [ 26.508073][ T1721] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 26.514116][ T1721] RIP: 0033:0x4011f0 [ 26.517990][ T1721] Code: 01 f0 ff ff 0f 83 00 0b 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 9d 4b 2d 00 00 75 14 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 d4 0a 00 00 c3 48 83 ec 08 e8 3a 00 00 00 [ 26.537580][ T1721] RSP: 002b:00007ffe28b722d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 26.545972][ T1721] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004011f0 [ 26.553924][ T1721] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffe28b722e0 [ 26.561873][ T1721] RBP: 6666666666666667 R08: 000000000000000f R09: 0000000000000023 [ 26.569836][ T1721] R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000402150 [ 26.577803][ T1721] R13: 00000000004021e0 R14: 0000000000000000 R15: 0000000000000000 [ 26.586098][ T1721] Kernel Offset: disabled [ 26.590416][ T1721] Rebooting in 86400 seconds..