zd1211rw 1-1:0.30: error ioread32(CR_REG1): -11 ============================================ WARNING: possible recursive locking detected 6.0.0-rc7-syzkaller-00946-g00988f70a076 #0 Not tainted -------------------------------------------- kworker/0:3/1140 is trying to acquire lock: ffff888116365f90 (&chip->mutex){+.+.}-{3:3}, at: zd_chip_disable_rxtx+0x1c/0x40 drivers/net/wireless/zydas/zd1211rw/zd_chip.c:1465 but task is already holding lock: ffff88813dbe5f90 (&chip->mutex){+.+.}-{3:3}, at: pre_reset+0x20f/0x280 drivers/net/wireless/zydas/zd1211rw/zd_usb.c:1503 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&chip->mutex); lock(&chip->mutex); *** DEADLOCK *** May be due to missing lock nesting notation 6 locks held by kworker/0:3/1140: #0: ffff888109aef138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888109aef138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888109aef138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888109aef138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline] #0: ffff888109aef138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline] #0: ffff888109aef138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260 #1: ffffc90002a7fda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264 #2: ffff88810f1f3190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline] #2: ffff88810f1f3190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bc/0x4610 drivers/usb/core/hub.c:5681 #3: ffff888113446190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline] #3: ffff888113446190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:983 #4: ffff888109c5b118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline] #4: ffff888109c5b118 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:983 #5: ffff88813dbe5f90 (&chip->mutex){+.+.}-{3:3}, at: pre_reset+0x20f/0x280 drivers/net/wireless/zydas/zd1211rw/zd_usb.c:1503 stack backtrace: CPU: 0 PID: 1140 Comm: kworker/0:3 Not tainted 6.0.0-rc7-syzkaller-00946-g00988f70a076 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_deadlock_bug kernel/locking/lockdep.c:2988 [inline] check_deadlock kernel/locking/lockdep.c:3031 [inline] validate_chain kernel/locking/lockdep.c:3816 [inline] __lock_acquire.cold+0x116/0x3a7 kernel/locking/lockdep.c:5053 lock_acquire kernel/locking/lockdep.c:5666 [inline] lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5631 __mutex_lock_common kernel/locking/mutex.c:603 [inline] __mutex_lock+0x12f/0x1350 kernel/locking/mutex.c:747 zd_chip_disable_rxtx+0x1c/0x40 drivers/net/wireless/zydas/zd1211rw/zd_chip.c:1465 zd_op_stop+0x60/0x1a0 drivers/net/wireless/zydas/zd1211rw/zd_mac.c:343 zd_usb_stop drivers/net/wireless/zydas/zd1211rw/zd_usb.c:1478 [inline] pre_reset+0x195/0x280 drivers/net/wireless/zydas/zd1211rw/zd_usb.c:1501 usb_reset_device+0x417/0xac0 drivers/usb/core/hub.c:6108 probe+0x10f/0x590 drivers/net/wireless/zydas/zd1211rw/zd_usb.c:1370 usb_probe_interface+0x30b/0x7f0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:560 [inline] really_probe+0x249/0xb90 drivers/base/dd.c:639 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:778 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:808 __device_attach_driver+0x1d0/0x2e0 drivers/base/dd.c:936 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427 __device_attach+0x1e4/0x530 drivers/base/dd.c:1008 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487 device_add+0xbd5/0x1e90 drivers/base/core.c:3517 usb_set_configuration+0x1019/0x1900 drivers/usb/core/message.c:2170 usb_generic_driver_probe+0xba/0x100 drivers/usb/core/generic.c:238 usb_probe_device+0xd4/0x2c0 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:560 [inline] really_probe+0x249/0xb90 drivers/base/dd.c:639 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:778 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:808 __device_attach_driver+0x1d0/0x2e0 drivers/base/dd.c:936 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427 __device_attach+0x1e4/0x530 drivers/base/dd.c:1008 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487 device_add+0xbd5/0x1e90 drivers/base/core.c:3517 usb_new_device.cold+0x685/0x10ad drivers/usb/core/hub.c:2573 hub_port_connect drivers/usb/core/hub.c:5353 [inline] hub_port_connect_change drivers/usb/core/hub.c:5497 [inline] port_event drivers/usb/core/hub.c:5653 [inline] hub_event+0x26c7/0x4610 drivers/usb/core/hub.c:5735 process_one_work+0x991/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2ea/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 zd1211rw 1-1:0.171: error ioread32(CR_REG1): -11 usb 1-1: reset high-speed USB device number 100 using dummy_hcd usb 1-1: Using ep0 maxpacket: 8 usb 1-1: device firmware changed zd1211rw 1-1:0.5: couldn't reset usb device. Error number -19 usb 1-1: USB disconnect, device number 100 usb 1-1: new high-speed USB device number 101 using dummy_hcd usb 1-1: Using ep0 maxpacket: 8 usb 1-1: config 1 has an invalid descriptor of length 0, skipping remainder of the config usb 1-1: config 1 has 2 interfaces, different from the descriptor's value: 3 usb 1-1: config 1 has no interface number 1 usb 1-1: config 1 interface 2 altsetting 1 has 0 endpoint descriptors, different from the interface descriptor's value: 1 usb 1-1: config 1 interface 2 has no altsetting 0 usb 1-1: New USB device found, idVendor=1d6b, idProduct=0101, bcdDevice= 0.40 usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-1: Product: syz usb 1-1: Manufacturer: syz usb 1-1: SerialNumber: syz usb 1-1: selecting invalid altsetting 0 usb 1-1: USB disconnect, device number 101 usb 1-1: new high-speed USB device number 102 using dummy_hcd usb 1-1: Using ep0 maxpacket: 8 usb 1-1: config 1 has an invalid descriptor of length 0, skipping remainder of the config usb 1-1: config 1 has 2 interfaces, different from the descriptor's value: 3 usb 1-1: config 1 has no interface number 1 usb 1-1: config 1 interface 2 altsetting 1 has 0 endpoint descriptors, different from the interface descriptor's value: 1 usb 1-1: config 1 interface 2 has no altsetting 0 usb 1-1: New USB device found, idVendor=1d6b, idProduct=0101, bcdDevice= 0.40 usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-1: Product: syz usb 1-1: Manufacturer: syz usb 1-1: SerialNumber: syz usb 1-1: selecting invalid altsetting 0 usb 1-1: USB disconnect, device number 102 usb 4-1: new high-speed USB device number 80 using dummy_hcd usb 4-1: Using ep0 maxpacket: 32 usb 4-1: config 1 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 usb 4-1: config 1 interface 1 altsetting 1 endpoint 0x82 has invalid wMaxPacketSize 0 usb 4-1: config 1 interface 1 altsetting 1 bulk endpoint 0x82 has invalid maxpacket 0 usb 4-1: config 1 interface 1 altsetting 1 endpoint 0x3 has invalid wMaxPacketSize 0 usb 4-1: config 1 interface 1 altsetting 1 bulk endpoint 0x3 has invalid maxpacket 0 usb 4-1: New USB device found, idVendor=0525, idProduct=a4a1, bcdDevice= 0.40 usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 4-1: SerialNumber: 埼ᧀꡁ嶻ḏꩉ뉸볺玆ᝉํ瞇╳ℯꆭ纽뎇ॕ塚콮ﾟᒘ䠙ᅷ᷽걆ꒄ़㴔腍⋐켿⋵蓇᛽⌲蠁㔝ﴓ剄檙鞊生䟁蓄婡㲟䗗⸭О넨램䮧绑⢑撢䨦軟錿ቐ㙿⿝䰪㡥 cdc_ncm 4-1:1.0: bind() failure cdc_ncm 4-1:1.1: CDC Union missing and no IAD found cdc_ncm 4-1:1.1: bind() failure usb 4-1: USB disconnect, device number 80 usb 4-1: new high-speed USB device number 81 using dummy_hcd usb 4-1: Using ep0 maxpacket: 32 usb 4-1: config 1 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 usb 4-1: config 1 interface 1 altsetting 1 endpoint 0x82 has invalid wMaxPacketSize 0 usb 4-1: config 1 interface 1 altsetting 1 bulk endpoint 0x82 has invalid maxpacket 0 usb 4-1: config 1 interface 1 altsetting 1 endpoint 0x3 has invalid wMaxPacketSize 0 usb 4-1: config 1 interface 1 altsetting 1 bulk endpoint 0x3 has invalid maxpacket 0 usb 4-1: New USB device found, idVendor=0525, idProduct=a4a1, bcdDevice= 0.40 usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 4-1: SerialNumber: 埼ᧀꡁ嶻ḏꩉ뉸볺玆ᝉํ瞇╳ℯꆭ纽뎇ॕ塚콮ﾟᒘ䠙ᅷ᷽걆ꒄ़㴔腍⋐켿⋵蓇᛽⌲蠁㔝ﴓ剄檙鞊生䟁蓄婡㲟䗗⸭О넨램䮧绑⢑撢䨦軟錿ቐ㙿⿝䰪㡥 cdc_ncm 4-1:1.0: bind() failure cdc_ncm 4-1:1.1: CDC Union missing and no IAD found cdc_ncm 4-1:1.1: bind() failure usb 4-1: USB disconnect, device number 81 usb 4-1: new high-speed USB device number 82 using dummy_hcd usb 4-1: Using ep0 maxpacket: 32 usb 4-1: config 1 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 usb 4-1: config 1 interface 1 altsetting 1 endpoint 0x82 has invalid wMaxPacketSize 0 usb 4-1: config 1 interface 1 altsetting 1 bulk endpoint 0x82 has invalid maxpacket 0 usb 4-1: config 1 interface 1 altsetting 1 endpoint 0x3 has invalid wMaxPacketSize 0 usb 4-1: config 1 interface 1 altsetting 1 bulk endpoint 0x3 has invalid maxpacket 0