Warning: Permanently added '10.128.0.161' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 23.237883][ T22] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 23.477814][ T22] usb 1-1: Using ep0 maxpacket: 16 [ 23.597918][ T22] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 23.609205][ T22] usb 1-1: config 0 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 9 [ 23.622133][ T22] usb 1-1: New USB device found, idVendor=045e, idProduct=07da, bcdDevice= 0.00 [ 23.632100][ T22] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 23.641592][ T22] usb 1-1: config 0 descriptor?? [ 24.119945][ T22] microsoft 0003:045E:07DA.0001: unknown main item tag 0x0 [ 24.131202][ T22] ------------[ cut here ]------------ [ 24.137091][ T22] add_uevent_var: buffer size too small [ 24.142887][ T22] WARNING: CPU: 1 PID: 22 at lib/kobject_uevent.c:670 add_uevent_var+0x2e7/0x310 [ 24.152007][ T22] Kernel panic - not syncing: panic_on_warn set ... [ 24.158679][ T22] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.5.0-rc2-syzkaller #0 [ 24.166903][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.176968][ T22] Workqueue: usb_hub_wq hub_event [ 24.181989][ T22] Call Trace: [ 24.185282][ T22] dump_stack+0xef/0x16e [ 24.189533][ T22] ? add_uevent_var+0x220/0x310 [ 24.194392][ T22] panic+0x2aa/0x6e1 [ 24.198306][ T22] ? add_taint.cold+0x16/0x16 [ 24.203056][ T22] ? __probe_kernel_read+0x188/0x1d0 [ 24.208333][ T22] ? __warn.cold+0x14/0x30 [ 24.212737][ T22] ? __warn+0xd5/0x1c8 [ 24.216869][ T22] ? add_uevent_var+0x2e7/0x310 [ 24.221827][ T22] __warn.cold+0x2f/0x30 [ 24.226178][ T22] ? add_uevent_var+0x2e7/0x310 [ 24.238748][ T22] report_bug+0x27b/0x2f0 [ 24.243061][ T22] do_error_trap+0x12b/0x1e0 [ 24.247644][ T22] ? add_uevent_var+0x2e7/0x310 [ 24.252500][ T22] do_invalid_op+0x32/0x40 [ 24.257458][ T22] ? add_uevent_var+0x2e7/0x310 [ 24.262300][ T22] invalid_op+0x23/0x30 [ 24.266441][ T22] RIP: 0010:add_uevent_var+0x2e7/0x310 [ 24.272124][ T22] Code: 48 c7 c7 c0 36 6f 86 e8 bf 6d 9e fb 0f 0b 41 bd f4 ff ff ff e9 55 ff ff ff e8 e5 50 c9 fb 48 c7 c7 60 37 6f 86 e8 a1 6d 9e fb <0f> 0b 41 bd f4 ff ff ff e9 37 ff ff ff e8 f7 d7 f1 fb e9 16 ff ff [ 24.293003][ T22] RSP: 0018:ffff8881d8c368b0 EFLAGS: 00010286 [ 24.299066][ T22] RAX: 0000000000000000 RBX: ffff8881d16de000 RCX: 0000000000000000 [ 24.307016][ T22] RDX: 0000000000000000 RSI: ffffffff81295dad RDI: ffffed103b186d08 [ 24.314997][ T22] RBP: ffff8881d8c369a0 R08: ffff8881da24e200 R09: fffffbfff11f1eb0 [ 24.322986][ T22] R10: fffffbfff11f1eaf R11: ffffffff88f8f57f R12: 1ffff1103b186d19 [ 24.330951][ T22] R13: ffff8881d16de118 R14: 00000000000007f5 R15: 00000000000007f5 [ 24.338922][ T22] ? vprintk_func+0x7d/0x113 [ 24.343699][ T22] ? cleanup_uevent_env+0x40/0x40 [ 24.348712][ T22] ? kasan_unpoison_shadow+0x30/0x40 [ 24.353982][ T22] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 24.360117][ T22] ? memcpy+0x35/0x50 [ 24.364086][ T22] kobject_uevent_env+0x6e0/0x11f0 [ 24.370146][ T22] device_add+0xad2/0x1c20 [ 24.374549][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 24.379821][ T22] ? device_links_flush_sync_list+0x350/0x350 [ 24.385871][ T22] ? kasan_unpoison_shadow+0x30/0x40 [ 24.391168][ T22] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 24.396996][ T22] input_register_device+0x7f0/0xd10 [ 24.402316][ T22] ? check_memory_region+0x141/0x1c0 [ 24.407619][ T22] hidinput_connect+0x4f8d/0xdb90 [ 24.412650][ T22] ? hidinput_setkeycode+0x390/0x390 [ 24.417936][ T22] ? usb_alloc_urb+0x65/0xb0 [ 24.422529][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 24.428063][ T22] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 24.433855][ T22] hid_connect+0x965/0xbb0 [ 24.438258][ T22] ? hid_match_one_id+0x2c0/0x2c0 [ 24.443439][ T22] hid_hw_start+0xa2/0x130 [ 24.447846][ T22] ms_probe+0x159/0x4d0 [ 24.451986][ T22] ? ms_remove+0x90/0x90 [ 24.456234][ T22] hid_device_probe+0x2be/0x3f0 [ 24.461095][ T22] ? hid_match_device+0x1f0/0x1f0 [ 24.466114][ T22] really_probe+0x281/0x6d0 [ 24.470607][ T22] driver_probe_device+0x104/0x210 [ 24.475717][ T22] __device_attach_driver+0x1c2/0x220 [ 24.481076][ T22] ? driver_allows_async_probing+0x160/0x160 [ 24.487040][ T22] bus_for_each_drv+0x162/0x1e0 [ 24.491890][ T22] ? bus_rescan_devices+0x20/0x20 [ 24.496899][ T22] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 24.502691][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 24.508312][ T22] __device_attach+0x217/0x360 [ 24.513067][ T22] ? device_bind_driver+0xd0/0xd0 [ 24.518097][ T22] bus_probe_device+0x1e4/0x290 [ 24.522941][ T22] device_add+0x1480/0x1c20 [ 24.527626][ T22] ? device_links_flush_sync_list+0x350/0x350 [ 24.533679][ T22] ? __debugfs_create_file+0x301/0x3f0 [ 24.539150][ T22] hid_add_device+0x33c/0x9a0 [ 24.544692][ T22] ? debug_object_fixup+0x30/0x30 [ 24.549703][ T22] ? __hid_bus_reprobe_drivers+0x130/0x130 [ 24.557758][ T22] ? lockdep_init_map+0x1b0/0x5e0 [ 24.563723][ T22] usbhid_probe+0xa81/0xfa0 [ 24.568228][ T22] usb_probe_interface+0x305/0x7a0 [ 24.573325][ T22] ? usb_probe_device+0x100/0x100 [ 24.578346][ T22] really_probe+0x281/0x6d0 [ 24.582831][ T22] driver_probe_device+0x104/0x210 [ 24.587928][ T22] __device_attach_driver+0x1c2/0x220 [ 24.593283][ T22] ? driver_allows_async_probing+0x160/0x160 [ 24.599247][ T22] bus_for_each_drv+0x162/0x1e0 [ 24.604090][ T22] ? bus_rescan_devices+0x20/0x20 [ 24.609100][ T22] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 24.615844][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 24.621125][ T22] __device_attach+0x217/0x360 [ 24.625884][ T22] ? device_bind_driver+0xd0/0xd0 [ 24.630890][ T22] bus_probe_device+0x1e4/0x290 [ 24.635726][ T22] device_add+0x1480/0x1c20 [ 24.640647][ T22] ? wait_for_completion+0x3c0/0x3c0 [ 24.645917][ T22] ? device_links_flush_sync_list+0x350/0x350 [ 24.651965][ T22] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 24.658016][ T22] usb_set_configuration+0xe67/0x1740 [ 24.663371][ T22] generic_probe+0x9d/0xd5 [ 24.667792][ T22] usb_probe_device+0x99/0x100 [ 24.672567][ T22] ? usb_suspend+0x620/0x620 [ 24.677175][ T22] really_probe+0x281/0x6d0 [ 24.681682][ T22] driver_probe_device+0x104/0x210 [ 24.687391][ T22] __device_attach_driver+0x1c2/0x220 [ 24.693879][ T22] ? driver_allows_async_probing+0x160/0x160 [ 24.700109][ T22] bus_for_each_drv+0x162/0x1e0 [ 24.704949][ T22] ? bus_rescan_devices+0x20/0x20 [ 24.709958][ T22] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 24.715758][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 24.721038][ T22] __device_attach+0x217/0x360 [ 24.726000][ T22] ? device_bind_driver+0xd0/0xd0 [ 24.731107][ T22] bus_probe_device+0x1e4/0x290 [ 24.735947][ T22] device_add+0x1480/0x1c20 [ 24.740454][ T22] ? device_links_flush_sync_list+0x350/0x350 [ 24.746568][ T22] usb_new_device.cold+0x6a4/0xe79 [ 24.751823][ T22] hub_event+0x1e59/0x3860 [ 24.756241][ T22] ? hub_port_debounce+0x260/0x260 [ 24.761348][ T22] ? find_held_lock+0x2d/0x110 [ 24.766097][ T22] ? mark_held_locks+0xe0/0xe0 [ 24.770850][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 24.776490][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 24.781794][ T22] process_one_work+0x92b/0x1530 [ 24.787538][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 24.792932][ T22] ? do_raw_spin_lock+0x11a/0x280 [ 24.798040][ T22] worker_thread+0x96/0xe20 [ 24.802556][ T22] ? process_one_work+0x1530/0x1530 [ 24.807837][ T22] kthread+0x318/0x420 [ 24.811901][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 24.817261][ T22] ret_from_fork+0x24/0x30 [ 24.822548][ T22] Kernel Offset: disabled [ 24.826941][ T22] Rebooting in 86400 seconds..