zd1211rw 6-1:4.87: error ioread32(CR_REG1): -11 ============================================ WARNING: possible recursive locking detected 5.19.0-rc7-syzkaller-00142-g88a15fbb47db #0 Not tainted -------------------------------------------- kworker/1:1/18224 is trying to acquire lock: ffff88811862df30 (&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: ffff888136d6df30 (&chip->mutex){+.+.}-{3:3}, at: pre_reset+0x217/0x290 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/1:1/18224: #0: ffff888109b4ed38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888109b4ed38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888109b4ed38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888109b4ed38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline] #0: ffff888109b4ed38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline] #0: ffff888109b4ed38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260 #1: ffffc9000a02fda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264 #2: ffff88810f343190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline] #2: ffff88810f343190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4690 drivers/usb/core/hub.c:5681 #3: ffff888109ef4190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline] #3: ffff888109ef4190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:964 #4: ffff888109681118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline] #4: ffff888109681118 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:964 #5: ffff888136d6df30 (&chip->mutex){+.+.}-{3:3}, at: pre_reset+0x217/0x290 drivers/net/wireless/zydas/zd1211rw/zd_usb.c:1503 stack backtrace: CPU: 1 PID: 18224 Comm: kworker/1:1 Not tainted 5.19.0-rc7-syzkaller-00142-g88a15fbb47db #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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+0x1f5/0x3b4 kernel/locking/lockdep.c:5053 lock_acquire kernel/locking/lockdep.c:5665 [inline] lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630 __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+0x19d/0x290 drivers/net/wireless/zydas/zd1211rw/zd_usb.c:1501 usb_reset_device+0x37d/0x9a0 drivers/usb/core/hub.c:6099 probe+0x10f/0x590 drivers/net/wireless/zydas/zd1211rw/zd_usb.c:1370 usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:555 [inline] really_probe+0x23e/0xb90 drivers/base/dd.c:634 __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:764 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:794 __device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:917 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427 __device_attach+0x1e4/0x530 drivers/base/dd.c:989 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487 device_add+0xbda/0x1ea0 drivers/base/core.c:3428 usb_set_configuration+0x101e/0x1900 drivers/usb/core/message.c:2170 usb_generic_driver_probe+0xba/0x100 drivers/usb/core/generic.c:238 usb_probe_device+0xd9/0x2c0 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:555 [inline] really_probe+0x23e/0xb90 drivers/base/dd.c:634 __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:764 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:794 __device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:917 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427 __device_attach+0x1e4/0x530 drivers/base/dd.c:989 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487 device_add+0xbda/0x1ea0 drivers/base/core.c:3428 usb_new_device.cold+0x641/0x1091 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+0x25d5/0x4690 drivers/usb/core/hub.c:5735 process_one_work+0x996/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2ef/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 zd1211rw 6-1:4.106: error ioread32(CR_REG1): -11 usb 6-1: reset high-speed USB device number 26 using dummy_hcd usb 6-1: Using ep0 maxpacket: 32 usb 6-1: device firmware changed zd1211rw 6-1:4.98: couldn't reset usb device. Error number -19 usb 6-1: USB disconnect, device number 26 usb 6-1: new high-speed USB device number 27 using dummy_hcd usb 6-1: Using ep0 maxpacket: 32 usb 6-1: config 1 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 0 usb 6-1: New USB device found, idVendor=056a, idProduct=00ed, bcdDevice= 0.40 usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 6-1: Product: syz usb 6-1: Manufacturer: syz usb 6-1: SerialNumber: syz usbhid 6-1:1.0: couldn't find an input interrupt endpoint usb 6-1: USB disconnect, device number 27 usb 2-1: new high-speed USB device number 75 using dummy_hcd usb 2-1: Using ep0 maxpacket: 32 usb 2-1: config 1 interface 0 altsetting 6 endpoint 0x81 has an invalid bInterval 129, changing to 11 usb 2-1: config 1 interface 0 has no altsetting 0 usb 2-1: New USB device found, idVendor=046d, idProduct=4071, bcdDevice= 0.40 usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 2-1: Product: syz usb 2-1: Manufacturer: syz usb 2-1: SerialNumber: syz usbhid 2-1:1.0: can't add hid device: -71 usbhid: probe of 2-1:1.0 failed with error -71 usb 2-1: USB disconnect, device number 75 usb 6-1: new high-speed USB device number 31 using dummy_hcd usb 6-1: Using ep0 maxpacket: 32 usb 6-1: config 1 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 0 usb 6-1: New USB device found, idVendor=056a, idProduct=00ed, bcdDevice= 0.40 usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 6-1: Product: syz usb 6-1: Manufacturer: syz usb 6-1: SerialNumber: syz