[ OK ] Started OpenBSD Secure Shell server. [ 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 '10.128.0.145' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 31.852254][ T5] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 32.112057][ T5] usb 1-1: Using ep0 maxpacket: 16 [ 32.252081][ T5] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 32.263085][ T5] usb 1-1: config 0 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 9 [ 32.275941][ T5] usb 1-1: New USB device found, idVendor=045e, idProduct=07da, bcdDevice= 0.07 [ 32.285028][ T5] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 32.295480][ T5] usb 1-1: config 0 descriptor?? [ 32.774280][ T5] microsoft 0003:045E:07DA.0001: unknown main item tag 0x0 [ 32.781721][ T5] microsoft 0003:045E:07DA.0001: unknown main item tag 0x0 [ 32.788949][ T5] microsoft 0003:045E:07DA.0001: unknown main item tag 0x0 [ 32.796417][ T5] microsoft 0003:045E:07DA.0001: unknown main item tag 0x0 [ 32.803681][ T5] microsoft 0003:045E:07DA.0001: unknown main item tag 0x0 [ 32.810908][ T5] microsoft 0003:045E:07DA.0001: unknown main item tag 0x0 [ 32.818184][ T5] microsoft 0003:045E:07DA.0001: unknown main item tag 0x0 [ 32.825562][ T5] microsoft 0003:045E:07DA.0001: unknown main item tag 0x0 [ 32.832860][ T5] microsoft 0003:045E:07DA.0001: unknown main item tag 0x0 [ 32.840103][ T5] microsoft 0003:045E:07DA.0001: unknown main item tag 0x0 [ 32.848111][ T5] HID 045e:07da: Invalid code 65791 type 1 [ 32.856915][ T5] ------------[ cut here ]------------ [ 32.862641][ T5] init_uevent_argv: buffer size too small [ 32.868539][ T5] WARNING: CPU: 0 PID: 5 at lib/kobject_uevent.c:259 kobject_uevent_env+0x1640/0x1680 [ 32.878120][ T5] Modules linked in: [ 32.882068][ T5] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.10.0-rc2-syzkaller #0 [ 32.890210][ T5] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.900339][ T5] Workqueue: usb_hub_wq hub_event [ 32.905427][ T5] RIP: 0010:kobject_uevent_env+0x1640/0x1680 [ 32.911395][ T5] Code: 87 e8 24 af fe ff e9 cf f8 ff ff 48 8b 3c 24 e8 06 33 68 ff e9 a9 f8 ff ff e8 cc 9e 3c ff 48 c7 c7 e0 68 00 86 e8 59 b9 71 03 <0f> 0b 41 bf f4 ff ff ff e9 51 ec ff ff 4c 89 ff e8 5b 32 68 ff e9 [ 32.931156][ T5] RSP: 0018:ffffc9000005e8e0 EFLAGS: 00010286 [ 32.937302][ T5] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000 [ 32.945347][ T5] RDX: ffff88810022e500 RSI: ffffffff8128fe63 RDI: fffff5200000bd0e [ 32.953391][ T5] RBP: 00000000000007fb R08: 0000000000000001 R09: ffff8881f6a1febb [ 32.961373][ T5] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000005 executing program [ 32.969404][ T5] R13: 00000000000007fb R14: 0000000000000005 R15: 0000000000000000 [ 32.977454][ T5] FS: 0000000000000000(0000) GS:ffff8881f6a00000(0000) knlGS:0000000000000000 [ 32.986467][ T5] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 32.993127][ T5] CR2: 00000000006d0090 CR3: 0000000103ed4000 CR4: 00000000001506f0 [ 33.001289][ T5] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.009349][ T5] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.018565][ T5] Call Trace: [ 33.021920][ T5] device_add+0xb47/0x1ce0 [ 33.026335][ T5] ? devlink_add_symlinks+0x450/0x450 [ 33.031755][ T5] ? rcu_read_lock_sched_held+0x3a/0x70 [ 33.037345][ T5] ? kasan_unpoison_shadow+0x33/0x40 [ 33.042697][ T5] ? __kasan_kmalloc.constprop.0+0xc2/0xd0 [ 33.048516][ T5] input_register_device+0x73a/0xce0 [ 33.053864][ T5] hidinput_connect+0x5056/0x9d50 [ 33.058913][ T5] ? hidinput_setkeycode+0x6f0/0x6f0 [ 33.064248][ T5] ? __mutex_unlock_slowpath+0xe2/0x610 [ 33.069794][ T5] ? hid_match_id+0x27a/0x300 [ 33.074607][ T5] hid_connect+0x958/0xbc0 [ 33.079026][ T5] ? hid_match_id+0x300/0x300 [ 33.083799][ T5] hid_hw_start+0xa2/0x130 [ 33.088219][ T5] ms_probe+0x159/0x4b0 [ 33.092420][ T5] ? ms_remove+0x90/0x90 [ 33.096666][ T5] hid_device_probe+0x2bd/0x3f0 [ 33.101591][ T5] ? hid_match_device+0x390/0x390 [ 33.106619][ T5] really_probe+0x291/0xde0 [ 33.111126][ T5] driver_probe_device+0x26b/0x3d0 [ 33.116281][ T5] __device_attach_driver+0x1d1/0x290 [ 33.121736][ T5] ? driver_allows_async_probing+0x150/0x150 [ 33.127728][ T5] bus_for_each_drv+0x15f/0x1e0 [ 33.132625][ T5] ? bus_for_each_dev+0x1d0/0x1d0 [ 33.137650][ T5] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 33.143675][ T5] ? trace_hardirqs_on+0x5b/0x1a0 [ 33.148698][ T5] __device_attach+0x228/0x4a0 [ 33.153522][ T5] ? really_probe+0xde0/0xde0 [ 33.158197][ T5] ? kobject_uevent_env+0x2bb/0x1680 [ 33.163558][ T5] bus_probe_device+0x1e4/0x290 [ 33.168419][ T5] device_add+0xbb2/0x1ce0 [ 33.172906][ T5] ? devlink_add_symlinks+0x450/0x450 [ 33.178294][ T5] ? __debugfs_create_file+0x33d/0x4c0 [ 33.183806][ T5] hid_add_device+0x344/0x9d0 [ 33.188475][ T5] ? modalias_show+0x150/0x150 [ 33.193284][ T5] ? lockdep_init_map_waits+0x26a/0x700 [ 33.198928][ T5] usbhid_probe+0xaae/0xfc0 [ 33.203495][ T5] usb_probe_interface+0x315/0x7f0 [ 33.208618][ T5] ? usb_match_dynamic_id+0x1a0/0x1a0 [ 33.214035][ T5] really_probe+0x291/0xde0 [ 33.218555][ T5] driver_probe_device+0x26b/0x3d0 [ 33.223729][ T5] __device_attach_driver+0x1d1/0x290 [ 33.229112][ T5] ? driver_allows_async_probing+0x150/0x150 [ 33.235140][ T5] bus_for_each_drv+0x15f/0x1e0 [ 33.239991][ T5] ? bus_for_each_dev+0x1d0/0x1d0 [ 33.245058][ T5] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 33.251039][ T5] ? trace_hardirqs_on+0x5b/0x1a0 [ 33.256114][ T5] __device_attach+0x228/0x4a0 [ 33.260877][ T5] ? really_probe+0xde0/0xde0 [ 33.265598][ T5] ? kobject_uevent_env+0x2bb/0x1680 [ 33.270888][ T5] bus_probe_device+0x1e4/0x290 [ 33.275795][ T5] device_add+0xbb2/0x1ce0 [ 33.280210][ T5] ? devlink_add_symlinks+0x450/0x450 [ 33.285642][ T5] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 33.291706][ T5] ? _raw_spin_unlock_irqrestore+0x34/0x40 [ 33.297558][ T5] ? trace_hardirqs_on+0x5b/0x1a0 [ 33.302621][ T5] usb_set_configuration+0x113c/0x1910 [ 33.308174][ T5] usb_generic_driver_probe+0xba/0x100 [ 33.313673][ T5] usb_probe_device+0xd9/0x2c0 [ 33.318451][ T5] ? usb_driver_release_interface+0x180/0x180 [ 33.324571][ T5] really_probe+0x291/0xde0 [ 33.329075][ T5] driver_probe_device+0x26b/0x3d0 [ 33.334235][ T5] __device_attach_driver+0x1d1/0x290 [ 33.339604][ T5] ? driver_allows_async_probing+0x150/0x150 [ 33.345643][ T5] bus_for_each_drv+0x15f/0x1e0 [ 33.350486][ T5] ? bus_for_each_dev+0x1d0/0x1d0 [ 33.355564][ T5] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 33.361617][ T5] ? trace_hardirqs_on+0x5b/0x1a0 [ 33.366632][ T5] __device_attach+0x228/0x4a0 [ 33.371428][ T5] ? really_probe+0xde0/0xde0 [ 33.376120][ T5] ? kobject_uevent_env+0x2bb/0x1680 [ 33.381464][ T5] bus_probe_device+0x1e4/0x290 [ 33.386318][ T5] device_add+0xbb2/0x1ce0 [ 33.390716][ T5] ? devlink_add_symlinks+0x450/0x450 [ 33.396135][ T5] usb_new_device.cold+0x71d/0xfe9 [ 33.401322][ T5] ? hub_disconnect+0x510/0x510 [ 33.406190][ T5] ? rwlock_bug.part.0+0x90/0x90 [ 33.411108][ T5] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 33.417130][ T5] hub_event+0x2348/0x42d0 [ 33.421631][ T5] ? hub_port_debounce+0x3b0/0x3b0 [ 33.426730][ T5] ? __lock_acquire+0x10f1/0x5c20 [ 33.431812][ T5] ? __do_compat_sys_getrusage+0x80/0x120 [ 33.437911][ T5] ? lock_release+0x6d0/0x6d0 [ 33.442631][ T5] ? lock_downgrade+0x6d0/0x6d0 [ 33.447484][ T5] ? do_raw_spin_lock+0x120/0x2b0 [ 33.452572][ T5] process_one_work+0x933/0x1520 [ 33.457512][ T5] ? lock_release+0x6d0/0x6d0 [ 33.462263][ T5] ? pwq_dec_nr_in_flight+0x320/0x320 [ 33.467647][ T5] ? rwlock_bug.part.0+0x90/0x90 [ 33.472629][ T5] worker_thread+0x64c/0x1120 [ 33.477322][ T5] ? process_one_work+0x1520/0x1520 [ 33.482652][ T5] kthread+0x38c/0x460 [ 33.486738][ T5] ? _raw_spin_unlock_irq+0x1f/0x30 [ 33.491997][ T5] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 33.497894][ T5] ret_from_fork+0x1f/0x30 [ 33.502352][ T5] Kernel panic - not syncing: panic_on_warn set ... [ 33.508940][ T5] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.10.0-rc2-syzkaller #0 [ 33.517075][ T5] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.527123][ T5] Workqueue: usb_hub_wq hub_event [ 33.532127][ T5] Call Trace: [ 33.535400][ T5] dump_stack+0x107/0x163 [ 33.539713][ T5] panic+0x306/0x73d [ 33.543589][ T5] ? __warn_printk+0xf3/0xf3 [ 33.548164][ T5] ? __warn.cold+0x1d/0xbb [ 33.552578][ T5] ? __warn.cold+0x14/0xbb [ 33.556975][ T5] ? kobject_uevent_env+0x1640/0x1680 [ 33.562331][ T5] __warn.cold+0x38/0xbb [ 33.566568][ T5] ? irq_work_queue+0x44/0x50 [ 33.572186][ T5] ? kobject_uevent_env+0x1640/0x1680 [ 33.577544][ T5] report_bug+0x1bd/0x210 [ 33.581856][ T5] handle_bug+0x3c/0x60 [ 33.586012][ T5] exc_invalid_op+0x14/0x40 [ 33.590501][ T5] asm_exc_invalid_op+0x12/0x20 [ 33.595334][ T5] RIP: 0010:kobject_uevent_env+0x1640/0x1680 [ 33.601292][ T5] Code: 87 e8 24 af fe ff e9 cf f8 ff ff 48 8b 3c 24 e8 06 33 68 ff e9 a9 f8 ff ff e8 cc 9e 3c ff 48 c7 c7 e0 68 00 86 e8 59 b9 71 03 <0f> 0b 41 bf f4 ff ff ff e9 51 ec ff ff 4c 89 ff e8 5b 32 68 ff e9 [ 33.620983][ T5] RSP: 0018:ffffc9000005e8e0 EFLAGS: 00010286 [ 33.627037][ T5] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000 [ 33.635005][ T5] RDX: ffff88810022e500 RSI: ffffffff8128fe63 RDI: fffff5200000bd0e [ 33.642964][ T5] RBP: 00000000000007fb R08: 0000000000000001 R09: ffff8881f6a1febb [ 33.650922][ T5] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000005 [ 33.658893][ T5] R13: 00000000000007fb R14: 0000000000000005 R15: 0000000000000000 [ 33.666865][ T5] ? vprintk_func+0x93/0x140 [ 33.671441][ T5] device_add+0xb47/0x1ce0 [ 33.675858][ T5] ? devlink_add_symlinks+0x450/0x450 [ 33.681211][ T5] ? rcu_read_lock_sched_held+0x3a/0x70 [ 33.686736][ T5] ? kasan_unpoison_shadow+0x33/0x40 [ 33.692011][ T5] ? __kasan_kmalloc.constprop.0+0xc2/0xd0 [ 33.697818][ T5] input_register_device+0x73a/0xce0 [ 33.703094][ T5] hidinput_connect+0x5056/0x9d50 [ 33.708097][ T5] ? hidinput_setkeycode+0x6f0/0x6f0 [ 33.713362][ T5] ? __mutex_unlock_slowpath+0xe2/0x610 [ 33.718882][ T5] ? hid_match_id+0x27a/0x300 [ 33.723538][ T5] hid_connect+0x958/0xbc0 [ 33.727932][ T5] ? hid_match_id+0x300/0x300 [ 33.732613][ T5] hid_hw_start+0xa2/0x130 [ 33.737022][ T5] ms_probe+0x159/0x4b0 [ 33.741228][ T5] ? ms_remove+0x90/0x90 [ 33.745580][ T5] hid_device_probe+0x2bd/0x3f0 [ 33.750578][ T5] ? hid_match_device+0x390/0x390 [ 33.755591][ T5] really_probe+0x291/0xde0 [ 33.760087][ T5] driver_probe_device+0x26b/0x3d0 [ 33.765186][ T5] __device_attach_driver+0x1d1/0x290 [ 33.770543][ T5] ? driver_allows_async_probing+0x150/0x150 [ 33.776528][ T5] bus_for_each_drv+0x15f/0x1e0 [ 33.781380][ T5] ? bus_for_each_dev+0x1d0/0x1d0 [ 33.786388][ T5] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 33.792359][ T5] ? trace_hardirqs_on+0x5b/0x1a0 [ 33.797366][ T5] __device_attach+0x228/0x4a0 [ 33.802123][ T5] ? really_probe+0xde0/0xde0 [ 33.806793][ T5] ? kobject_uevent_env+0x2bb/0x1680 [ 33.812066][ T5] bus_probe_device+0x1e4/0x290 [ 33.816909][ T5] device_add+0xbb2/0x1ce0 [ 33.821304][ T5] ? devlink_add_symlinks+0x450/0x450 [ 33.826669][ T5] ? __debugfs_create_file+0x33d/0x4c0 [ 33.832104][ T5] hid_add_device+0x344/0x9d0 [ 33.836759][ T5] ? modalias_show+0x150/0x150 [ 33.841502][ T5] ? lockdep_init_map_waits+0x26a/0x700 [ 33.847031][ T5] usbhid_probe+0xaae/0xfc0 [ 33.851528][ T5] usb_probe_interface+0x315/0x7f0 [ 33.856619][ T5] ? usb_match_dynamic_id+0x1a0/0x1a0 [ 33.861969][ T5] really_probe+0x291/0xde0 [ 33.868971][ T5] driver_probe_device+0x26b/0x3d0 [ 33.874060][ T5] __device_attach_driver+0x1d1/0x290 [ 33.879412][ T5] ? driver_allows_async_probing+0x150/0x150 [ 33.885391][ T5] bus_for_each_drv+0x15f/0x1e0 [ 33.890218][ T5] ? bus_for_each_dev+0x1d0/0x1d0 [ 33.895236][ T5] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 33.901280][ T5] ? trace_hardirqs_on+0x5b/0x1a0 [ 33.906293][ T5] __device_attach+0x228/0x4a0 [ 33.911037][ T5] ? really_probe+0xde0/0xde0 [ 33.915709][ T5] ? kobject_uevent_env+0x2bb/0x1680 [ 33.920992][ T5] bus_probe_device+0x1e4/0x290 [ 33.925831][ T5] device_add+0xbb2/0x1ce0 [ 33.930233][ T5] ? devlink_add_symlinks+0x450/0x450 [ 33.935583][ T5] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 33.941557][ T5] ? _raw_spin_unlock_irqrestore+0x34/0x40 [ 33.947345][ T5] ? trace_hardirqs_on+0x5b/0x1a0 [ 33.952350][ T5] usb_set_configuration+0x113c/0x1910 [ 33.957822][ T5] usb_generic_driver_probe+0xba/0x100 [ 33.963269][ T5] usb_probe_device+0xd9/0x2c0 [ 33.968075][ T5] ? usb_driver_release_interface+0x180/0x180 [ 33.974129][ T5] really_probe+0x291/0xde0 [ 33.978624][ T5] driver_probe_device+0x26b/0x3d0 [ 33.983726][ T5] __device_attach_driver+0x1d1/0x290 [ 33.989077][ T5] ? driver_allows_async_probing+0x150/0x150 [ 33.995034][ T5] bus_for_each_drv+0x15f/0x1e0 [ 33.999897][ T5] ? bus_for_each_dev+0x1d0/0x1d0 [ 34.004901][ T5] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 34.010867][ T5] ? trace_hardirqs_on+0x5b/0x1a0 [ 34.015876][ T5] __device_attach+0x228/0x4a0 [ 34.020630][ T5] ? really_probe+0xde0/0xde0 [ 34.025298][ T5] ? kobject_uevent_env+0x2bb/0x1680 [ 34.030561][ T5] bus_probe_device+0x1e4/0x290 [ 34.035390][ T5] device_add+0xbb2/0x1ce0 [ 34.039787][ T5] ? devlink_add_symlinks+0x450/0x450 [ 34.045153][ T5] usb_new_device.cold+0x71d/0xfe9 [ 34.050283][ T5] ? hub_disconnect+0x510/0x510 [ 34.055113][ T5] ? rwlock_bug.part.0+0x90/0x90 [ 34.060028][ T5] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 34.065998][ T5] hub_event+0x2348/0x42d0 [ 34.070395][ T5] ? hub_port_debounce+0x3b0/0x3b0 [ 34.075482][ T5] ? __lock_acquire+0x10f1/0x5c20 [ 34.080490][ T5] ? __do_compat_sys_getrusage+0x80/0x120 [ 34.086188][ T5] ? lock_release+0x6d0/0x6d0 [ 34.090842][ T5] ? lock_downgrade+0x6d0/0x6d0 [ 34.095680][ T5] ? do_raw_spin_lock+0x120/0x2b0 [ 34.100703][ T5] process_one_work+0x933/0x1520 [ 34.105621][ T5] ? lock_release+0x6d0/0x6d0 [ 34.110277][ T5] ? pwq_dec_nr_in_flight+0x320/0x320 [ 34.115636][ T5] ? rwlock_bug.part.0+0x90/0x90 [ 34.120569][ T5] worker_thread+0x64c/0x1120 [ 34.125239][ T5] ? process_one_work+0x1520/0x1520 [ 34.130425][ T5] kthread+0x38c/0x460 [ 34.134492][ T5] ? _raw_spin_unlock_irq+0x1f/0x30 [ 34.139686][ T5] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 34.145564][ T5] ret_from_fork+0x1f/0x30 [ 34.150923][ T5] Kernel Offset: disabled [ 34.155310][ T5] Rebooting in 86400 seconds..