Warning: Permanently added '10.128.0.126' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 490.325789][ T19] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 490.345732][ T3000] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 490.353336][ T4909] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 490.357128][ T4891] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 490.369376][ T8486] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 490.377034][ T8499] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 490.596512][ T3000] usb 2-1: Using ep0 maxpacket: 16 [ 490.601771][ T4909] usb 6-1: Using ep0 maxpacket: 16 [ 490.615687][ T19] usb 3-1: Using ep0 maxpacket: 16 [ 490.635746][ T8486] usb 5-1: Using ep0 maxpacket: 16 [ 490.641061][ T8499] usb 4-1: Using ep0 maxpacket: 16 [ 490.647690][ T4891] usb 1-1: Using ep0 maxpacket: 16 [ 490.716021][ T3000] usb 2-1: config 1 interface 0 altsetting 0 endpoint 0xB has invalid wMaxPacketSize 0 [ 490.726382][ T4909] usb 6-1: config 1 interface 0 altsetting 0 endpoint 0xB has invalid wMaxPacketSize 0 [ 490.736143][ T3000] usb 2-1: config 1 interface 0 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 490.746136][ T4909] usb 6-1: config 1 interface 0 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 490.756286][ T3000] usb 2-1: config 1 interface 0 altsetting 0 endpoint 0x8A has invalid wMaxPacketSize 0 [ 490.766128][ T4909] usb 6-1: config 1 interface 0 altsetting 0 endpoint 0x8A has invalid wMaxPacketSize 0 [ 490.776471][ T3000] usb 2-1: config 1 interface 0 altsetting 0 bulk endpoint 0x8A has invalid maxpacket 0 [ 490.776535][ T19] usb 3-1: config 1 interface 0 altsetting 0 endpoint 0xB has invalid wMaxPacketSize 0 [ 490.786297][ T4909] usb 6-1: config 1 interface 0 altsetting 0 bulk endpoint 0x8A has invalid maxpacket 0 [ 490.786341][ T4909] usb 6-1: New USB device found, idVendor=04e6, idProduct=0005, bcdDevice= 1.77 [ 490.786367][ T4909] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 490.795125][ T3000] usb 2-1: New USB device found, idVendor=04e6, idProduct=0005, bcdDevice= 1.77 [ 490.800425][ T8486] usb 5-1: config 1 interface 0 altsetting 0 endpoint 0xB has invalid wMaxPacketSize 0 [ 490.815691][ T3000] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 490.823445][ T8499] usb 4-1: config 1 interface 0 altsetting 0 endpoint 0xB has invalid wMaxPacketSize 0 [ 490.835271][ T4909] ums-sddr09 6-1:1.0: USB Mass Storage device detected [ 490.842137][ T4891] usb 1-1: config 1 interface 0 altsetting 0 endpoint 0xB has invalid wMaxPacketSize 0 [ 490.877069][ T8499] usb 4-1: config 1 interface 0 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 490.887157][ T19] usb 3-1: config 1 interface 0 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 490.901519][ T8486] usb 5-1: config 1 interface 0 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 490.916841][ T19] usb 3-1: config 1 interface 0 altsetting 0 endpoint 0x8A has invalid wMaxPacketSize 0 [ 490.926816][ T3000] ums-sddr09 2-1:1.0: USB Mass Storage device detected [ 490.928980][ T8499] usb 4-1: config 1 interface 0 altsetting 0 endpoint 0x8A has invalid wMaxPacketSize 0 [ 490.948007][ T8486] usb 5-1: config 1 interface 0 altsetting 0 endpoint 0x8A has invalid wMaxPacketSize 0 [ 490.962635][ T4891] usb 1-1: config 1 interface 0 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 490.974248][ T19] usb 3-1: config 1 interface 0 altsetting 0 bulk endpoint 0x8A has invalid maxpacket 0 [ 490.985750][ T8486] usb 5-1: config 1 interface 0 altsetting 0 bulk endpoint 0x8A has invalid maxpacket 0 [ 490.999130][ T8499] usb 4-1: config 1 interface 0 altsetting 0 bulk endpoint 0x8A has invalid maxpacket 0 [ 491.011247][ T4891] usb 1-1: config 1 interface 0 altsetting 0 endpoint 0x8A has invalid wMaxPacketSize 0 [ 491.022847][ T19] usb 3-1: New USB device found, idVendor=04e6, idProduct=0005, bcdDevice= 1.77 [ 491.032698][ T8486] usb 5-1: New USB device found, idVendor=04e6, idProduct=0005, bcdDevice= 1.77 [ 491.042728][ T8499] usb 4-1: New USB device found, idVendor=04e6, idProduct=0005, bcdDevice= 1.77 [ 491.052630][ T4891] usb 1-1: config 1 interface 0 altsetting 0 bulk endpoint 0x8A has invalid maxpacket 0 [ 491.063402][ T19] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 491.072202][ T8486] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 491.080870][ T8499] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 491.090613][ T4891] usb 1-1: New USB device found, idVendor=04e6, idProduct=0005, bcdDevice= 1.77 [ 491.112461][ T4891] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 491.136925][ T19] ums-sddr09 3-1:1.0: USB Mass Storage device detected [ 491.145191][ T8486] ums-sddr09 5-1:1.0: USB Mass Storage device detected [ 491.156744][ T8499] ums-sddr09 4-1:1.0: USB Mass Storage device detected executing program [ 491.207591][ T4891] ums-sddr09 1-1:1.0: USB Mass Storage device detected [ 491.238338][ T8482] udc-core: couldn't find an available UDC or it's busy [ 491.245345][ T8482] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 executing program [ 491.336218][ T8483] udc-core: couldn't find an available UDC or it's busy [ 491.347911][ T8483] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 [ 491.385341][ T4909] ums-sddr09: probe of 6-1:1.0 failed with error -5 [ 491.400417][ T4909] usb 6-1: USB disconnect, device number 2 [ 491.432451][ T3000] ums-sddr09: probe of 2-1:1.0 failed with error -5 [ 491.453112][ T3000] usb 2-1: USB disconnect, device number 2 executing program executing program [ 491.546025][ T8481] udc-core: couldn't find an available UDC or it's busy [ 491.553221][ T8481] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 [ 491.553481][ T8485] udc-core: couldn't find an available UDC or it's busy [ 491.567868][ T8485] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 [ 491.576790][ T8484] udc-core: couldn't find an available UDC or it's busy [ 491.584389][ T8484] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 executing program [ 491.627777][ T8476] udc-core: couldn't find an available UDC or it's busy [ 491.634782][ T8476] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 [ 491.645765][ T19] ums-sddr09: probe of 3-1:1.0 failed with error -5 executing program [ 491.669550][ T19] usb 3-1: USB disconnect, device number 2 [ 491.678205][ T8486] ums-sddr09: probe of 5-1:1.0 failed with error -5 [ 491.706228][ T8486] usb 5-1: USB disconnect, device number 2 [ 491.717238][ T8499] ums-sddr09: probe of 4-1:1.0 failed with error -5 [ 491.737578][ T8499] usb 4-1: USB disconnect, device number 2 [ 491.750345][ T4891] ums-sddr09: probe of 1-1:1.0 failed with error -5 [ 491.776987][ T4891] usb 1-1: USB disconnect, device number 2 [ 491.826884][ T4909] usb 6-1: new high-speed USB device number 3 using dummy_hcd [ 491.834543][ T3000] usb 2-1: new high-speed USB device number 3 using dummy_hcd [ 492.085485][ T3000] usb 2-1: Using ep0 maxpacket: 16 [ 492.090834][ T4909] usb 6-1: Using ep0 maxpacket: 16 [ 492.116527][ T19] usb 3-1: new high-speed USB device number 3 using dummy_hcd [ 492.195524][ T8486] usb 5-1: new high-speed USB device number 3 using dummy_hcd [ 492.203169][ T8499] usb 4-1: new high-speed USB device number 3 using dummy_hcd [ 492.205681][ T3000] usb 2-1: config 1 interface 0 altsetting 0 endpoint 0xB has invalid wMaxPacketSize 0 [ 492.220589][ T4909] usb 6-1: config 1 interface 0 altsetting 0 endpoint 0xB has invalid wMaxPacketSize 0 [ 492.230279][ T3000] usb 2-1: config 1 interface 0 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 492.240042][ T4909] usb 6-1: config 1 interface 0 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 492.249787][ T3000] usb 2-1: config 1 interface 0 altsetting 0 endpoint 0x8A has invalid wMaxPacketSize 0 [ 492.255667][ T4891] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 492.259658][ T4909] usb 6-1: config 1 interface 0 altsetting 0 endpoint 0x8A has invalid wMaxPacketSize 0 [ 492.276880][ T3000] usb 2-1: config 1 interface 0 altsetting 0 bulk endpoint 0x8A has invalid maxpacket 0 [ 492.287702][ T3000] usb 2-1: New USB device found, idVendor=04e6, idProduct=0005, bcdDevice= 1.77 [ 492.297465][ T4909] usb 6-1: config 1 interface 0 altsetting 0 bulk endpoint 0x8A has invalid maxpacket 0 [ 492.308119][ T3000] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 492.316878][ T4909] usb 6-1: New USB device found, idVendor=04e6, idProduct=0005, bcdDevice= 1.77 [ 492.327609][ T4909] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 492.367055][ T3000] ums-sddr09 2-1:1.0: USB Mass Storage device detected [ 492.386736][ T4909] ums-sddr09 6-1:1.0: USB Mass Storage device detected [ 492.415608][ T19] usb 3-1: Using ep0 maxpacket: 16 [ 492.475777][ T8486] usb 5-1: Using ep0 maxpacket: 16 [ 492.481111][ T8499] usb 4-1: Using ep0 maxpacket: 16 [ 492.535629][ T4891] usb 1-1: Using ep0 maxpacket: 16 [ 492.575707][ T19] usb 3-1: config 1 interface 0 altsetting 0 endpoint 0xB has invalid wMaxPacketSize 0 [ 492.585815][ T19] usb 3-1: config 1 interface 0 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 492.596199][ T19] usb 3-1: config 1 interface 0 altsetting 0 endpoint 0x8A has invalid wMaxPacketSize 0 [ 492.606819][ T19] usb 3-1: config 1 interface 0 altsetting 0 bulk endpoint 0x8A has invalid maxpacket 0 [ 492.617355][ T19] usb 3-1: New USB device found, idVendor=04e6, idProduct=0005, bcdDevice= 1.77 [ 492.626963][ T8499] usb 4-1: config 1 interface 0 altsetting 0 endpoint 0xB has invalid wMaxPacketSize 0 [ 492.636716][ T8486] usb 5-1: config 1 interface 0 altsetting 0 endpoint 0xB has invalid wMaxPacketSize 0 [ 492.646470][ T19] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 492.654924][ T8486] usb 5-1: config 1 interface 0 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 492.664673][ T8499] usb 4-1: config 1 interface 0 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 492.674539][ T4891] usb 1-1: config 1 interface 0 altsetting 0 endpoint 0xB has invalid wMaxPacketSize 0 [ 492.685568][ T4891] usb 1-1: config 1 interface 0 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 492.695253][ T4891] usb 1-1: config 1 interface 0 altsetting 0 endpoint 0x8A has invalid wMaxPacketSize 0 [ 492.695383][ T8486] usb 5-1: config 1 interface 0 altsetting 0 endpoint 0x8A has invalid wMaxPacketSize 0 [ 492.715020][ T8499] usb 4-1: config 1 interface 0 altsetting 0 endpoint 0x8A has invalid wMaxPacketSize 0 [ 492.724868][ T4891] usb 1-1: config 1 interface 0 altsetting 0 bulk endpoint 0x8A has invalid maxpacket 0 [ 492.735685][ T19] ums-sddr09 3-1:1.0: USB Mass Storage device detected [ 492.743185][ T8499] usb 4-1: config 1 interface 0 altsetting 0 bulk endpoint 0x8A has invalid maxpacket 0 [ 492.754183][ T4891] usb 1-1: New USB device found, idVendor=04e6, idProduct=0005, bcdDevice= 1.77 [ 492.764872][ T8486] usb 5-1: config 1 interface 0 altsetting 0 bulk endpoint 0x8A has invalid maxpacket 0 [ 492.775971][ T8499] usb 4-1: New USB device found, idVendor=04e6, idProduct=0005, bcdDevice= 1.77 [ 492.785016][ T8499] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 492.787299][ T8549] udc-core: couldn't find an available UDC or it's busy [ 492.795210][ T4891] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 492.800099][ T8549] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 [ 492.816233][ T8546] udc-core: couldn't find an available UDC or it's busy executing program executing program [ 492.817865][ T8486] usb 5-1: New USB device found, idVendor=04e6, idProduct=0005, bcdDevice= 1.77 [ 492.823186][ T8546] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 [ 492.900808][ T3000] ums-sddr09: probe of 2-1:1.0 failed with error -5 [ 492.916687][ T8499] ums-sddr09 4-1:1.0: USB Mass Storage device detected [ 492.920563][ T3000] usb 2-1: USB disconnect, device number 3 [ 492.940419][ T4891] ums-sddr09 1-1:1.0: USB Mass Storage device detected [ 492.952897][ T4909] ums-sddr09: probe of 6-1:1.0 failed with error -5 [ 492.961283][ T8486] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 492.967074][ T4909] usb 6-1: USB disconnect, device number 3 [ 493.037180][ T8486] ums-sddr09 5-1:1.0: USB Mass Storage device detected executing program [ 493.135960][ T8568] udc-core: couldn't find an available UDC or it's busy [ 493.142952][ T8568] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 [ 493.222842][ T19] ums-sddr09: probe of 3-1:1.0 failed with error -5 [ 493.232300][ T19] usb 3-1: USB disconnect, device number 3 executing program executing program [ 493.305279][ T3000] usb 2-1: new high-speed USB device number 4 using dummy_hcd [ 493.336930][ T8578] udc-core: couldn't find an available UDC or it's busy [ 493.344010][ T8578] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 [ 493.356899][ T8585] udc-core: couldn't find an available UDC or it's busy [ 493.363880][ T8585] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 [ 493.395280][ T4909] usb 6-1: new high-speed USB device number 4 using dummy_hcd [ 493.425314][ T8499] ums-sddr09: probe of 4-1:1.0 failed with error -5 [ 493.442408][ T8499] usb 4-1: USB disconnect, device number 3 [ 493.450464][ T4891] ums-sddr09: probe of 1-1:1.0 failed with error -5 [ 493.462070][ T4891] usb 1-1: USB disconnect, device number 3 [ 493.545259][ T3000] usb 2-1: Using ep0 maxpacket: 16 [ 493.605260][ T19] usb 3-1: new high-speed USB device number 4 using dummy_hcd [ 493.635306][ T4909] usb 6-1: Using ep0 maxpacket: 16 [ 493.665388][ T3000] usb 2-1: config 1 interface 0 altsetting 0 endpoint 0xB has invalid wMaxPacketSize 0 [ 493.675527][ T3000] usb 2-1: config 1 interface 0 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 493.685982][ T3000] usb 2-1: config 1 interface 0 altsetting 0 endpoint 0x8A has invalid wMaxPacketSize 0 [ 493.696434][ T3000] usb 2-1: config 1 interface 0 altsetting 0 bulk endpoint 0x8A has invalid maxpacket 0 [ 493.706386][ T3000] usb 2-1: New USB device found, idVendor=04e6, idProduct=0005, bcdDevice= 1.77 [ 493.715785][ T3000] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 493.755336][ T4909] usb 6-1: config 1 interface 0 altsetting 0 endpoint 0xB has invalid wMaxPacketSize 0 [ 493.765057][ T4909] usb 6-1: config 1 interface 0 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 493.776109][ T3000] ums-sddr09 2-1:1.0: USB Mass Storage device detected [ 493.799270][ T4909] usb 6-1: config 1 interface 0 altsetting 0 endpoint 0x8A has invalid wMaxPacketSize 0 [ 493.809961][ T4909] usb 6-1: config 1 interface 0 altsetting 0 bulk endpoint 0x8A has invalid maxpacket 0 [ 493.822727][ T4909] usb 6-1: New USB device found, idVendor=04e6, idProduct=0005, bcdDevice= 1.77 [ 493.834223][ T4909] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 493.845371][ T8499] usb 4-1: new high-speed USB device number 4 using dummy_hcd [ 493.865441][ T19] usb 3-1: Using ep0 maxpacket: 16 [ 493.877592][ T4909] ums-sddr09 6-1:1.0: USB Mass Storage device detected [ 494.025282][ T19] usb 3-1: config 1 interface 0 altsetting 0 endpoint 0xB has invalid wMaxPacketSize 0 [ 494.035262][ T19] usb 3-1: config 1 interface 0 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 494.044994][ T19] usb 3-1: config 1 interface 0 altsetting 0 endpoint 0x8A has invalid wMaxPacketSize 0 [ 494.054946][ T19] usb 3-1: config 1 interface 0 altsetting 0 bulk endpoint 0x8A has invalid maxpacket 0 [ 494.064915][ T19] usb 3-1: New USB device found, idVendor=04e6, idProduct=0005, bcdDevice= 1.77 [ 494.074139][ T19] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 494.086322][ T8499] usb 4-1: Using ep0 maxpacket: 16 [ 494.139844][ T19] ums-sddr09 3-1:1.0: USB Mass Storage device detected [ 494.235313][ T8499] usb 4-1: config 1 interface 0 altsetting 0 endpoint 0xB has invalid wMaxPacketSize 0 [ 494.245254][ T8499] usb 4-1: config 1 interface 0 altsetting 0 bulk endpoint 0xB has invalid maxpacket 0 [ 494.256220][ T8499] usb 4-1: config 1 interface 0 altsetting 0 endpoint 0x8A has invalid wMaxPacketSize 0 [ 494.266283][ T8499] usb 4-1: config 1 interface 0 altsetting 0 bulk endpoint 0x8A has invalid maxpacket 0 [ 494.276226][ T8499] usb 4-1: New USB device found, idVendor=04e6, idProduct=0005, bcdDevice= 1.77 [ 494.285438][ T8499] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 494.346989][ T8499] ums-sddr09 4-1:1.0: USB Mass Storage device detected [ 721.414825][ T1657] INFO: task syz-executor487:8574 blocked for more than 143 seconds. [ 721.423083][ T1657] Not tainted 5.11.0-rc7-syzkaller #0 [ 721.429079][ T1657] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 721.437815][ T1657] task:syz-executor487 state:D stack:28112 pid: 8574 ppid: 8479 flags:0x00000004 [ 721.447135][ T1657] Call Trace: [ 721.450514][ T1657] __schedule+0x90c/0x21a0 [ 721.455079][ T1657] ? io_schedule_timeout+0x140/0x140 [ 721.460403][ T1657] schedule+0xcf/0x270 [ 721.464465][ T1657] schedule_preempt_disabled+0xf/0x20 [ 721.469927][ T1657] __mutex_lock+0x81a/0x1110 [ 721.474681][ T1657] ? tomoyo_path_number_perm+0x590/0x590 [ 721.480451][ T1657] ? misc_open+0x55/0x4a0 [ 721.484967][ T1657] ? mutex_lock_io_nested+0xf60/0xf60 [ 721.490353][ T1657] ? find_held_lock+0x2d/0x110 [ 721.495222][ T1657] ? lock_downgrade+0x6d0/0x6d0 [ 721.500087][ T1657] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 721.506490][ T1657] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 721.512745][ T1657] ? kobject_get_unless_zero+0x15a/0x1e0 [ 721.518478][ T1657] ? rwlock_bug.part.0+0x90/0x90 [ 721.523456][ T1657] misc_open+0x55/0x4a0 [ 721.527710][ T1657] ? misc_devnode+0x120/0x120 [ 721.532399][ T1657] chrdev_open+0x266/0x770 [ 721.537107][ T1657] ? cdev_device_add+0x210/0x210 [ 721.542060][ T1657] ? security_file_open+0x205/0x4f0 [ 721.547401][ T1657] do_dentry_open+0x4b9/0x11b0 [ 721.552217][ T1657] ? cdev_device_add+0x210/0x210 [ 721.557206][ T1657] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 721.563463][ T1657] ? may_open+0x1e4/0x400 [ 721.567937][ T1657] path_openat+0x1b9a/0x2730 [ 721.572551][ T1657] ? path_lookupat+0x830/0x830 [ 721.577390][ T1657] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 721.583401][ T1657] do_filp_open+0x17e/0x3c0 [ 721.587994][ T1657] ? may_open_dev+0xf0/0xf0 [ 721.592510][ T1657] ? do_raw_spin_lock+0x120/0x2b0 [ 721.597594][ T1657] ? rwlock_bug.part.0+0x90/0x90 [ 721.602557][ T1657] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 721.608907][ T1657] ? _raw_spin_unlock+0x24/0x40 [ 721.613788][ T1657] ? alloc_fd+0x2bc/0x640 [ 721.618235][ T1657] do_sys_openat2+0x16d/0x420 [ 721.622923][ T1657] ? hrtimer_init_sleeper_on_stack+0x90/0x90 [ 721.629046][ T1657] ? build_open_flags+0x680/0x680 [ 721.634083][ T1657] ? put_timespec64+0x120/0x120 [ 721.639033][ T1657] __x64_sys_openat+0x13f/0x1f0 [ 721.643925][ T1657] ? __ia32_sys_open+0x1c0/0x1c0 [ 721.648987][ T1657] ? syscall_enter_from_user_mode+0x1d/0x50 [ 721.655093][ T1657] do_syscall_64+0x2d/0x70 [ 721.659548][ T1657] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 721.665546][ T1657] RIP: 0033:0x4031a7 [ 721.669444][ T1657] RSP: 002b:00007ffd77c5adc0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 721.677970][ T1657] RAX: ffffffffffffffda RBX: 0000000020000440 RCX: 00000000004031a7 [ 721.686038][ T1657] RDX: 0000000000000002 RSI: 000000000048803b RDI: 00000000ffffff9c [ 721.694013][ T1657] RBP: 000000000048803b R08: 0000000000000000 R09: 0000000000000000 [ 721.702027][ T1657] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 721.710100][ T1657] R13: 00007ffd77c5ceec R14: 0000000000000076 R15: 00007ffd77c5cef0 [ 721.718170][ T1657] INFO: task syz-executor487:8631 blocked for more than 143 seconds. [ 721.726326][ T1657] Not tainted 5.11.0-rc7-syzkaller #0 [ 721.732207][ T1657] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 721.740930][ T1657] task:syz-executor487 state:D stack:27912 pid: 8631 ppid: 8480 flags:0x00000004 [ 721.750406][ T1657] Call Trace: [ 721.753679][ T1657] __schedule+0x90c/0x21a0 [ 721.758153][ T1657] ? io_schedule_timeout+0x140/0x140 [ 721.763464][ T1657] schedule+0xcf/0x270 [ 721.767632][ T1657] schedule_preempt_disabled+0xf/0x20 [ 721.773014][ T1657] __mutex_lock+0x81a/0x1110 [ 721.777662][ T1657] ? tomoyo_path_number_perm+0x590/0x590 [ 721.783314][ T1657] ? misc_open+0x55/0x4a0 [ 721.787751][ T1657] ? mutex_lock_io_nested+0xf60/0xf60 [ 721.793158][ T1657] ? find_held_lock+0x2d/0x110 [ 721.797995][ T1657] ? lock_downgrade+0x6d0/0x6d0 [ 721.802862][ T1657] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 721.809190][ T1657] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 721.815521][ T1657] ? kobject_get_unless_zero+0x15a/0x1e0 [ 721.821169][ T1657] ? rwlock_bug.part.0+0x90/0x90 [ 721.826225][ T1657] misc_open+0x55/0x4a0 [ 721.830395][ T1657] ? misc_devnode+0x120/0x120 [ 721.835140][ T1657] chrdev_open+0x266/0x770 [ 721.839585][ T1657] ? cdev_device_add+0x210/0x210 [ 721.844514][ T1657] ? security_file_open+0x205/0x4f0 [ 721.849801][ T1657] do_dentry_open+0x4b9/0x11b0 [ 721.854645][ T1657] ? cdev_device_add+0x210/0x210 [ 721.859598][ T1657] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 721.865939][ T1657] ? may_open+0x1e4/0x400 [ 721.870283][ T1657] path_openat+0x1b9a/0x2730 [ 721.874933][ T1657] ? path_lookupat+0x830/0x830 [ 721.879713][ T1657] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 721.885789][ T1657] do_filp_open+0x17e/0x3c0 [ 721.890306][ T1657] ? may_open_dev+0xf0/0xf0 [ 721.894870][ T1657] ? do_raw_spin_lock+0x120/0x2b0 [ 721.899909][ T1657] ? rwlock_bug.part.0+0x90/0x90 [ 721.904931][ T1657] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 721.911199][ T1657] ? _raw_spin_unlock+0x24/0x40 [ 721.916110][ T1657] ? alloc_fd+0x2bc/0x640 [ 721.920459][ T1657] do_sys_openat2+0x16d/0x420 [ 721.925221][ T1657] ? hrtimer_init_sleeper_on_stack+0x90/0x90 [ 721.931216][ T1657] ? build_open_flags+0x680/0x680 [ 721.936313][ T1657] ? put_timespec64+0x120/0x120 [ 721.941183][ T1657] __x64_sys_openat+0x13f/0x1f0 [ 721.946117][ T1657] ? __ia32_sys_open+0x1c0/0x1c0 [ 721.951084][ T1657] ? syscall_enter_from_user_mode+0x1d/0x50 [ 721.957227][ T1657] do_syscall_64+0x2d/0x70 [ 721.961671][ T1657] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 721.967647][ T1657] RIP: 0033:0x4031a7 [ 721.971546][ T1657] RSP: 002b:00007ffd77c5adc0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 721.980001][ T1657] RAX: ffffffffffffffda RBX: 0000000020000440 RCX: 00000000004031a7 [ 721.988088][ T1657] RDX: 0000000000000002 RSI: 000000000048803b RDI: 00000000ffffff9c [ 721.996103][ T1657] RBP: 000000000048803b R08: 0000000000000000 R09: 0000000000000000 [ 722.004084][ T1657] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 722.012148][ T1657] R13: 00007ffd77c5ceec R14: 0000000000000076 R15: 00007ffd77c5cef0 [ 722.020225][ T1657] INFO: task syz-executor487:8634 blocked for more than 143 seconds. [ 722.028387][ T1657] Not tainted 5.11.0-rc7-syzkaller #0 [ 722.034294][ T1657] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 722.043165][ T1657] task:syz-executor487 state:D stack:28160 pid: 8634 ppid: 8475 flags:0x00000004 [ 722.052504][ T1657] Call Trace: [ 722.055845][ T1657] __schedule+0x90c/0x21a0 [ 722.060319][ T1657] ? io_schedule_timeout+0x140/0x140 [ 722.065697][ T1657] schedule+0xcf/0x270 [ 722.069777][ T1657] schedule_preempt_disabled+0xf/0x20 [ 722.075245][ T1657] __mutex_lock+0x81a/0x1110 [ 722.079847][ T1657] ? tomoyo_path_number_perm+0x590/0x590 [ 722.085568][ T1657] ? misc_open+0x55/0x4a0 [ 722.089932][ T1657] ? mutex_lock_io_nested+0xf60/0xf60 [ 722.095373][ T1657] ? find_held_lock+0x2d/0x110 [ 722.100160][ T1657] ? lock_downgrade+0x6d0/0x6d0 [ 722.105094][ T1657] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 722.111371][ T1657] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 722.117660][ T1657] ? kobject_get_unless_zero+0x15a/0x1e0 [ 722.123311][ T1657] ? rwlock_bug.part.0+0x90/0x90 [ 722.128335][ T1657] misc_open+0x55/0x4a0 [ 722.132522][ T1657] ? misc_devnode+0x120/0x120 [ 722.137252][ T1657] chrdev_open+0x266/0x770 [ 722.141695][ T1657] ? cdev_device_add+0x210/0x210 [ 722.146715][ T1657] ? security_file_open+0x205/0x4f0 [ 722.151946][ T1657] do_dentry_open+0x4b9/0x11b0 [ 722.156776][ T1657] ? cdev_device_add+0x210/0x210 [ 722.161738][ T1657] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 722.168301][ T1657] ? may_open+0x1e4/0x400 [ 722.172653][ T1657] path_openat+0x1b9a/0x2730 [ 722.177320][ T1657] ? path_lookupat+0x830/0x830 [ 722.182100][ T1657] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 722.188178][ T1657] do_filp_open+0x17e/0x3c0 [ 722.192693][ T1657] ? may_open_dev+0xf0/0xf0 [ 722.197261][ T1657] ? do_raw_spin_lock+0x120/0x2b0 [ 722.202305][ T1657] ? rwlock_bug.part.0+0x90/0x90 [ 722.207350][ T1657] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 722.213610][ T1657] ? _raw_spin_unlock+0x24/0x40 [ 722.218539][ T1657] ? alloc_fd+0x2bc/0x640 [ 722.222892][ T1657] do_sys_openat2+0x16d/0x420 [ 722.227679][ T1657] ? hrtimer_init_sleeper_on_stack+0x90/0x90 [ 722.233701][ T1657] ? build_open_flags+0x680/0x680 [ 722.239029][ T1657] ? put_timespec64+0x120/0x120 [ 722.243904][ T1657] __x64_sys_openat+0x13f/0x1f0 [ 722.248843][ T1657] ? __ia32_sys_open+0x1c0/0x1c0 [ 722.253792][ T1657] ? syscall_enter_from_user_mode+0x1d/0x50 [ 722.259754][ T1657] do_syscall_64+0x2d/0x70 [ 722.264188][ T1657] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 722.270175][ T1657] RIP: 0033:0x4031a7 [ 722.274123][ T1657] RSP: 002b:00007ffd77c5adc0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 722.282582][ T1657] RAX: ffffffffffffffda RBX: 0000000020000440 RCX: 00000000004031a7 [ 722.290658][ T1657] RDX: 0000000000000002 RSI: 000000000048803b RDI: 00000000ffffff9c [ 722.298679][ T1657] RBP: 000000000048803b R08: 0000000000000000 R09: 0000000000000000 [ 722.306748][ T1657] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 722.314773][ T1657] R13: 00007ffd77c5ceec R14: 0000000000000076 R15: 00007ffd77c5cef0 [ 722.322803][ T1657] INFO: task syz-executor487:8668 blocked for more than 144 seconds. [ 722.330963][ T1657] Not tainted 5.11.0-rc7-syzkaller #0 [ 722.336919][ T1657] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 722.345705][ T1657] task:syz-executor487 state:D stack:28160 pid: 8668 ppid: 8477 flags:0x00000004 [ 722.354988][ T1657] Call Trace: [ 722.358276][ T1657] __schedule+0x90c/0x21a0 [ 722.362693][ T1657] ? io_schedule_timeout+0x140/0x140 [ 722.368076][ T1657] schedule+0xcf/0x270 [ 722.372154][ T1657] schedule_preempt_disabled+0xf/0x20 [ 722.377769][ T1657] __mutex_lock+0x81a/0x1110 [ 722.382375][ T1657] ? tomoyo_path_number_perm+0x590/0x590 [ 722.388103][ T1657] ? misc_open+0x55/0x4a0 [ 722.392453][ T1657] ? mutex_lock_io_nested+0xf60/0xf60 [ 722.397884][ T1657] ? find_held_lock+0x2d/0x110 [ 722.402673][ T1657] ? lock_downgrade+0x6d0/0x6d0 [ 722.407608][ T1657] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 722.413867][ T1657] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 722.420171][ T1657] ? kobject_get_unless_zero+0x15a/0x1e0 [ 722.425928][ T1657] ? rwlock_bug.part.0+0x90/0x90 [ 722.430867][ T1657] misc_open+0x55/0x4a0 [ 722.435093][ T1657] ? misc_devnode+0x120/0x120 [ 722.439781][ T1657] chrdev_open+0x266/0x770 [ 722.444191][ T1657] ? cdev_device_add+0x210/0x210 [ 722.449222][ T1657] ? security_file_open+0x205/0x4f0 [ 722.454442][ T1657] do_dentry_open+0x4b9/0x11b0 [ 722.459257][ T1657] ? cdev_device_add+0x210/0x210 [ 722.464209][ T1657] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 722.470538][ T1657] ? may_open+0x1e4/0x400 [ 722.474954][ T1657] path_openat+0x1b9a/0x2730 [ 722.479561][ T1657] ? path_lookupat+0x830/0x830 [ 722.484336][ T1657] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 722.490433][ T1657] do_filp_open+0x17e/0x3c0 [ 722.495018][ T1657] ? may_open_dev+0xf0/0xf0 [ 722.499536][ T1657] ? do_raw_spin_lock+0x120/0x2b0 [ 722.504655][ T1657] ? rwlock_bug.part.0+0x90/0x90 [ 722.509607][ T1657] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 722.515904][ T1657] ? _raw_spin_unlock+0x24/0x40 [ 722.520764][ T1657] ? alloc_fd+0x2bc/0x640 [ 722.525180][ T1657] do_sys_openat2+0x16d/0x420 [ 722.529867][ T1657] ? hrtimer_init_sleeper_on_stack+0x90/0x90 [ 722.535910][ T1657] ? build_open_flags+0x680/0x680 [ 722.540946][ T1657] ? put_timespec64+0x120/0x120 [ 722.545886][ T1657] __x64_sys_openat+0x13f/0x1f0 [ 722.550766][ T1657] ? __ia32_sys_open+0x1c0/0x1c0 [ 722.555774][ T1657] ? syscall_enter_from_user_mode+0x1d/0x50 [ 722.561685][ T1657] do_syscall_64+0x2d/0x70 [ 722.566194][ T1657] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 722.572101][ T1657] RIP: 0033:0x4031a7 [ 722.576036][ T1657] RSP: 002b:00007ffd77c5adc0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 722.584460][ T1657] RAX: ffffffffffffffda RBX: 0000000020000440 RCX: 00000000004031a7 [ 722.592748][ T1657] RDX: 0000000000000002 RSI: 000000000048803b RDI: 00000000ffffff9c [ 722.600785][ T1657] RBP: 000000000048803b R08: 0000000000000000 R09: 0000000000000000 [ 722.608864][ T1657] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 722.616884][ T1657] R13: 00007ffd77c5ceec R14: 0000000000000076 R15: 00007ffd77c5cef0 [ 722.624986][ T1657] INFO: task syz-executor487:8679 blocked for more than 144 seconds. [ 722.633051][ T1657] Not tainted 5.11.0-rc7-syzkaller #0 [ 722.638979][ T1657] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 722.647728][ T1657] task:syz-executor487 state:D stack:28160 pid: 8679 ppid: 8478 flags:0x00000004 [ 722.656970][ T1657] Call Trace: [ 722.660253][ T1657] __schedule+0x90c/0x21a0 [ 722.664769][ T1657] ? io_schedule_timeout+0x140/0x140 [ 722.670092][ T1657] schedule+0xcf/0x270 [ 722.674151][ T1657] schedule_preempt_disabled+0xf/0x20 [ 722.679636][ T1657] __mutex_lock+0x81a/0x1110 [ 722.684243][ T1657] ? tomoyo_path_number_perm+0x590/0x590 [ 722.689968][ T1657] ? misc_open+0x55/0x4a0 [ 722.694335][ T1657] ? mutex_lock_io_nested+0xf60/0xf60 [ 722.699755][ T1657] ? find_held_lock+0x2d/0x110 [ 722.704638][ T1657] ? lock_downgrade+0x6d0/0x6d0 [ 722.709497][ T1657] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 722.715775][ T1657] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 722.722035][ T1657] ? kobject_get_unless_zero+0x15a/0x1e0 [ 722.727760][ T1657] ? rwlock_bug.part.0+0x90/0x90 [ 722.732726][ T1657] misc_open+0x55/0x4a0 [ 722.736939][ T1657] ? misc_devnode+0x120/0x120 [ 722.741627][ T1657] chrdev_open+0x266/0x770 [ 722.746141][ T1657] ? cdev_device_add+0x210/0x210 [ 722.751108][ T1657] ? security_file_open+0x205/0x4f0 [ 722.756357][ T1657] do_dentry_open+0x4b9/0x11b0 [ 722.761148][ T1657] ? cdev_device_add+0x210/0x210 [ 722.766168][ T1657] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 722.772432][ T1657] ? may_open+0x1e4/0x400 [ 722.776811][ T1657] path_openat+0x1b9a/0x2730 [ 722.781429][ T1657] ? path_lookupat+0x830/0x830 [ 722.786280][ T1657] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 722.792283][ T1657] do_filp_open+0x17e/0x3c0 [ 722.797026][ T1657] ? may_open_dev+0xf0/0xf0 [ 722.801561][ T1657] ? do_raw_spin_lock+0x120/0x2b0 [ 722.806671][ T1657] ? rwlock_bug.part.0+0x90/0x90 [ 722.811626][ T1657] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 722.817926][ T1657] ? _raw_spin_unlock+0x24/0x40 [ 722.822790][ T1657] ? alloc_fd+0x2bc/0x640 [ 722.827232][ T1657] do_sys_openat2+0x16d/0x420 [ 722.831957][ T1657] ? hrtimer_init_sleeper_on_stack+0x90/0x90 [ 722.837982][ T1657] ? build_open_flags+0x680/0x680 [ 722.843021][ T1657] ? put_timespec64+0x120/0x120 [ 722.847965][ T1657] __x64_sys_openat+0x13f/0x1f0 [ 722.852829][ T1657] ? __ia32_sys_open+0x1c0/0x1c0 [ 722.857828][ T1657] ? syscall_enter_from_user_mode+0x1d/0x50 [ 722.863739][ T1657] do_syscall_64+0x2d/0x70 [ 722.868234][ T1657] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 722.874145][ T1657] RIP: 0033:0x4031a7 [ 722.878077][ T1657] RSP: 002b:00007ffd77c5adc0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 722.886591][ T1657] RAX: ffffffffffffffda RBX: 0000000020000440 RCX: 00000000004031a7 [ 722.894611][ T1657] RDX: 0000000000000002 RSI: 000000000048803b RDI: 00000000ffffff9c [ 722.902594][ T1657] RBP: 000000000048803b R08: 0000000000000000 R09: 0000000000000000 [ 722.910640][ T1657] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 722.918675][ T1657] R13: 00007ffd77c5ceec R14: 0000000000000076 R15: 00007ffd77c5cef0 [ 722.926769][ T1657] [ 722.926769][ T1657] Showing all locks held in the system: [ 722.934566][ T1657] 5 locks held by kworker/1:0/19: [ 722.939590][ T1657] #0: ffff888015a52538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x871/0x15f0 [ 722.950467][ T1657] #1: ffffc90000d97da8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x15f0 [ 722.961783][ T1657] #2: ffff88801ccb9218 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4320 [ 722.970840][ T1657] #3: ffff8881441ce218 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 722.980239][ T1657] #4: ffff8881418921a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 722.989596][ T1657] 1 lock held by khungtaskd/1657: [ 722.994670][ T1657] #0: ffffffff8bd73da0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 [ 723.004825][ T1657] 5 locks held by kworker/0:2/3000: [ 723.010023][ T1657] #0: ffff888015a52538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x871/0x15f0 [ 723.020789][ T1657] #1: ffffc90001887da8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x15f0 [ 723.032161][ T1657] #2: ffff88801cc79218 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4320 [ 723.041327][ T1657] #3: ffff888147549218 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 723.050699][ T1657] #4: ffff88814402f1a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 723.060031][ T1657] 5 locks held by kworker/0:4/4909: [ 723.065309][ T1657] #0: ffff888015a52538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x871/0x15f0 [ 723.076172][ T1657] #1: ffffc900016d7da8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x15f0 [ 723.087516][ T1657] #2: ffff88801cd51218 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4320 [ 723.096547][ T1657] #3: ffff88814745c218 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 723.105906][ T1657] #4: ffff888140e6d1a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 723.115226][ T1657] 1 lock held by in:imklog/8184: [ 723.120165][ T1657] #0: ffff888018fa34f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 [ 723.129385][ T1657] 5 locks held by kworker/1:1/8486: [ 723.134652][ T1657] #0: ffff888015a52538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x871/0x15f0 [ 723.145489][ T1657] #1: ffffc9000175fda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x15f0 [ 723.156776][ T1657] #2: ffff888144669218 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4320 [ 723.165781][ T1657] #3: ffff888019edc218 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 723.175096][ T1657] #4: ffff88814748c1a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 723.184376][ T1657] 5 locks held by kworker/1:2/8499: [ 723.189711][ T1657] #0: ffff888015a52538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x871/0x15f0 [ 723.200514][ T1657] #1: ffffc90001a27da8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x15f0 [ 723.211903][ T1657] #2: ffff888144611218 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4320 [ 723.221168][ T1657] #3: ffff88814404a218 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 723.230601][ T1657] #4: ffff8881438b01a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 723.239925][ T1657] 1 lock held by syz-executor487/8574: [ 723.245477][ T1657] #0: ffffffff8c752b48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 [ 723.253927][ T1657] 1 lock held by syz-executor487/8631: [ 723.259438][ T1657] #0: ffffffff8c752b48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 [ 723.268022][ T1657] 1 lock held by syz-executor487/8634: [ 723.273469][ T1657] #0: ffffffff8c752b48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 [ 723.281992][ T1657] 1 lock held by syz-executor487/8668: [ 723.287550][ T1657] #0: ffffffff8c752b48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 [ 723.296063][ T1657] 1 lock held by syz-executor487/8679: [ 723.301528][ T1657] #0: ffffffff8c752b48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 [ 723.310074][ T1657] 2 locks held by syz-executor487/8683: [ 723.315671][ T1657] #0: ffffffff8c752b48 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 [ 723.324226][ T1657] #1: ffffffff8bc45148 (system_transition_mutex){+.+.}-{3:3}, at: snapshot_open+0x3b/0x2a0 [ 723.334516][ T1657] [ 723.336844][ T1657] ============================================= [ 723.336844][ T1657] [ 723.345408][ T1657] NMI backtrace for cpu 1 [ 723.349734][ T1657] CPU: 1 PID: 1657 Comm: khungtaskd Not tainted 5.11.0-rc7-syzkaller #0 [ 723.358058][ T1657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 723.368115][ T1657] Call Trace: [ 723.371398][ T1657] dump_stack+0x107/0x163 [ 723.375772][ T1657] nmi_cpu_backtrace.cold+0x44/0xd7 [ 723.380958][ T1657] ? lapic_can_unplug_cpu+0x80/0x80 [ 723.386198][ T1657] nmi_trigger_cpumask_backtrace+0x1b3/0x230 [ 723.392185][ T1657] watchdog+0xd43/0xfa0 [ 723.396332][ T1657] ? reset_hung_task_detector+0x30/0x30 [ 723.401921][ T1657] kthread+0x3b1/0x4a0 [ 723.405993][ T1657] ? __kthread_bind_mask+0xc0/0xc0 [ 723.411090][ T1657] ret_from_fork+0x1f/0x30 [ 723.415629][ T1657] Sending NMI from CPU 1 to CPUs 0: [ 723.420903][ C0] NMI backtrace for cpu 0 skipped: idling at acpi_idle_do_entry+0x1c9/0x250 [ 723.421844][ T1657] Kernel panic - not syncing: hung_task: blocked tasks [ 723.436457][ T1657] CPU: 1 PID: 1657 Comm: khungtaskd Not tainted 5.11.0-rc7-syzkaller #0 [ 723.444765][ T1657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 723.454804][ T1657] Call Trace: [ 723.458098][ T1657] dump_stack+0x107/0x163 [ 723.462447][ T1657] panic+0x306/0x73d [ 723.466363][ T1657] ? __warn_printk+0xf3/0xf3 [ 723.470943][ T1657] ? cpumask_next+0x3c/0x40 [ 723.475431][ T1657] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 723.481139][ T1657] ? printk_safe_flush+0xea/0x160 [ 723.486151][ T1657] ? watchdog.cold+0x5/0x158 [ 723.490753][ T1657] watchdog.cold+0x16/0x158 [ 723.495245][ T1657] ? reset_hung_task_detector+0x30/0x30 [ 723.500781][ T1657] kthread+0x3b1/0x4a0 [ 723.504836][ T1657] ? __kthread_bind_mask+0xc0/0xc0 [ 723.509935][ T1657] ret_from_fork+0x1f/0x30 [ 723.515193][ T1657] Kernel Offset: disabled [ 723.519525][ T1657] Rebooting in 86400 seconds..