=====================================================
BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:611 [inline]
BUG: KMSAN: uninit-value in string+0x573/0x6d0 lib/vsprintf.c:693
CPU: 1 PID: 57 Comm: kworker/1:1 Not tainted 5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
 string_nocheck lib/vsprintf.c:611 [inline]
 string+0x573/0x6d0 lib/vsprintf.c:693
 vsnprintf+0x1acd/0x3600 lib/vsprintf.c:2651
 va_format lib/vsprintf.c:1663 [inline]
 pointer+0x1cbb/0x1ea0 lib/vsprintf.c:2283
 vsnprintf+0x15f2/0x3600 lib/vsprintf.c:2655
 vprintk_store+0x2ab/0x1df0 kernel/printk/printk.c:1990
 vprintk_emit+0x28e/0x8b0 kernel/printk/printk.c:2098
 dev_vprintk_emit+0x5f7/0x6d8 drivers/base/core.c:4434
 dev_printk_emit+0x1ce/0x210 drivers/base/core.c:4445
 __dev_printk+0x3dc/0x458 drivers/base/core.c:4457
 _dev_info+0x1e5/0x22a drivers/base/core.c:4503
 r871xu_drv_init+0x1a59/0x2fe0 drivers/staging/rtl8712/usb_intf.c:404
 usb_probe_interface+0xfcc/0x1520 drivers/usb/core/driver.c:396
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_set_configuration+0x3872/0x3eb0 drivers/usb/core/message.c:2164
 usb_generic_driver_probe+0x138/0x300 drivers/usb/core/generic.c:238
 usb_probe_device+0x317/0x570 drivers/usb/core/driver.c:293
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_new_device+0x1bd4/0x2a30 drivers/usb/core/hub.c:2555
 hub_port_connect drivers/usb/core/hub.c:5223 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
 port_event drivers/usb/core/hub.c:5509 [inline]
 hub_event+0x5b99/0x8870 drivers/usb/core/hub.c:5591
 process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
 worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
 kthread+0x521/0x560 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Local variable ----data@usb_read8 created at:
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
=====================================================
=====================================================
BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:611 [inline]
BUG: KMSAN: uninit-value in string+0x573/0x6d0 lib/vsprintf.c:693
CPU: 1 PID: 57 Comm: kworker/1:1 Tainted: G    B             5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
 string_nocheck lib/vsprintf.c:611 [inline]
 string+0x573/0x6d0 lib/vsprintf.c:693
 vsnprintf+0x1acd/0x3600 lib/vsprintf.c:2651
 va_format lib/vsprintf.c:1663 [inline]
 pointer+0x1cbb/0x1ea0 lib/vsprintf.c:2283
 vsnprintf+0x15f2/0x3600 lib/vsprintf.c:2655
 vprintk_store+0x2ab/0x1df0 kernel/printk/printk.c:1990
 vprintk_emit+0x28e/0x8b0 kernel/printk/printk.c:2098
 dev_vprintk_emit+0x5f7/0x6d8 drivers/base/core.c:4434
 dev_printk_emit+0x1ce/0x210 drivers/base/core.c:4445
 __dev_printk+0x3dc/0x458 drivers/base/core.c:4457
 _dev_info+0x1e5/0x22a drivers/base/core.c:4503
 r871xu_drv_init+0x1a59/0x2fe0 drivers/staging/rtl8712/usb_intf.c:404
 usb_probe_interface+0xfcc/0x1520 drivers/usb/core/driver.c:396
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_set_configuration+0x3872/0x3eb0 drivers/usb/core/message.c:2164
 usb_generic_driver_probe+0x138/0x300 drivers/usb/core/generic.c:238
 usb_probe_device+0x317/0x570 drivers/usb/core/driver.c:293
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_new_device+0x1bd4/0x2a30 drivers/usb/core/hub.c:2555
 hub_port_connect drivers/usb/core/hub.c:5223 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
 port_event drivers/usb/core/hub.c:5509 [inline]
 hub_event+0x5b99/0x8870 drivers/usb/core/hub.c:5591
 process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
 worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
 kthread+0x521/0x560 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Local variable ----data@usb_read8 created at:
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
=====================================================
=====================================================
BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:611 [inline]
BUG: KMSAN: uninit-value in string+0x573/0x6d0 lib/vsprintf.c:693
CPU: 1 PID: 57 Comm: kworker/1:1 Tainted: G    B             5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
 string_nocheck lib/vsprintf.c:611 [inline]
 string+0x573/0x6d0 lib/vsprintf.c:693
 vsnprintf+0x1acd/0x3600 lib/vsprintf.c:2651
 va_format lib/vsprintf.c:1663 [inline]
 pointer+0x1cbb/0x1ea0 lib/vsprintf.c:2283
 vsnprintf+0x15f2/0x3600 lib/vsprintf.c:2655
 vprintk_store+0x2ab/0x1df0 kernel/printk/printk.c:1990
 vprintk_emit+0x28e/0x8b0 kernel/printk/printk.c:2098
 dev_vprintk_emit+0x5f7/0x6d8 drivers/base/core.c:4434
 dev_printk_emit+0x1ce/0x210 drivers/base/core.c:4445
 __dev_printk+0x3dc/0x458 drivers/base/core.c:4457
 _dev_info+0x1e5/0x22a drivers/base/core.c:4503
 r871xu_drv_init+0x1a59/0x2fe0 drivers/staging/rtl8712/usb_intf.c:404
 usb_probe_interface+0xfcc/0x1520 drivers/usb/core/driver.c:396
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_set_configuration+0x3872/0x3eb0 drivers/usb/core/message.c:2164
 usb_generic_driver_probe+0x138/0x300 drivers/usb/core/generic.c:238
 usb_probe_device+0x317/0x570 drivers/usb/core/driver.c:293
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_new_device+0x1bd4/0x2a30 drivers/usb/core/hub.c:2555
 hub_port_connect drivers/usb/core/hub.c:5223 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
 port_event drivers/usb/core/hub.c:5509 [inline]
 hub_event+0x5b99/0x8870 drivers/usb/core/hub.c:5591
 process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
 worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421
 kthread+0x521/0x560 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Local variable ----data@usb_read8 created at:
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
=====================================================
=====================================================
BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:611 [inline]
BUG: KMSAN: uninit-value in string+0x573/0x6d0 lib/vsprintf.c:693
CPU: 1 PID: 57 Comm: kworker/1:1 Tainted: G    B             5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
 string_nocheck lib/vsprintf.c:611 [inline]
 string+0x573/0x6d0 lib/vsprintf.c:693
 vsnprintf+0x1acd/0x3600 lib/vsprintf.c:2651
 va_format lib/vsprintf.c:1663 [inline]
 pointer+0x1cbb/0x1ea0 lib/vsprintf.c:2283
 vsnprintf+0x15f2/0x3600 lib/vsprintf.c:2655
 vprintk_store+0x2ab/0x1df0 kernel/printk/printk.c:1990
Lost 1731 message(s)!
=====================================================
BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:611 [inline]
BUG: KMSAN: uninit-value in string+0x573/0x6d0 lib/vsprintf.c:693
CPU: 1 PID: 57 Comm: kworker/1:1 Tainted: G    B             5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
 string_nocheck lib/vsprintf.c:611 [inline]
 string+0x573/0x6d0 lib/vsprintf.c:693
 vsnprintf+0x1acd/0x3600 lib/vsprintf.c:2651
 va_format lib/vsprintf.c:1663 [inline]
 pointer+0x1cbb/0x1ea0 lib/vsprintf.c:2283
 vsnprintf+0x15f2/0x3600 lib/vsprintf.c:2655
 vprintk_store+0x2ab/0x1df0 kernel/printk/printk.c:1990
 vprintk_emit+0x28e/0x8b0 kernel/printk/printk.c:2098
 dev_vprintk_emit+0x5f7/0x6d8 drivers/base/core.c:4434
 dev_printk_emit+0x1ce/0x210 drivers/base/core.c:4445
 __dev_printk+0x3dc/0x458 drivers/base/core.c:4457
 _dev_info+0x1e5/0x22a drivers/base/core.c:4503
 r871xu_drv_init+0x1a59/0x2fe0 drivers/staging/rtl8712/usb_intf.c:404
 usb_probe_interface+0xfcc/0x1520 drivers/usb/core/driver.c:396
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_set_configuration+0x3872/0x3eb0 drivers/usb/core/message.c:2164
 usb_generic_driver_probe+0x138/0x300 drivers/usb/core/generic.c:238
 usb_probe_device+0x317/0x570 drivers/usb/core/driver.c:293
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_new_device+0x1bd4/0x2a30 drivers/usb/core/hub.c:2555
 hub_port_connect drivers/usb/core/hub.c:5223 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
 port_event drivers/usb/core/hub.c:5509 [inline]
 hub_event+0x5b99/0x8870 drivers/usb/core/hub.c:5591
 process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
 process_scheduled_works kernel/workqueue.c:2337 [inline]
 worker_thread+0x12bc/0x2340 kernel/workqueue.c:2423
 kthread+0x521/0x560 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Local variable ----data@usb_read8 created at:
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
=====================================================
=====================================================
BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:611 [inline]
BUG: KMSAN: uninit-value in string+0x573/0x6d0 lib/vsprintf.c:693
CPU: 1 PID: 57 Comm: kworker/1:1 Tainted: G    B             5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
 string_nocheck lib/vsprintf.c:611 [inline]
 string+0x573/0x6d0 lib/vsprintf.c:693
 vsnprintf+0x1acd/0x3600 lib/vsprintf.c:2651
 va_format lib/vsprintf.c:1663 [inline]
 pointer+0x1cbb/0x1ea0 lib/vsprintf.c:2283
 vsnprintf+0x15f2/0x3600 lib/vsprintf.c:2655
 vprintk_store+0x2ab/0x1df0 kernel/printk/printk.c:1990
 vprintk_emit+0x28e/0x8b0 kernel/printk/printk.c:2098
 dev_vprintk_emit+0x5f7/0x6d8 drivers/base/core.c:4434
 dev_printk_emit+0x1ce/0x210 drivers/base/core.c:4445
 __dev_printk+0x3dc/0x458 drivers/base/core.c:4457
 _dev_info+0x1e5/0x22a drivers/base/core.c:4503
 r871xu_drv_init+0x1a59/0x2fe0 drivers/staging/rtl8712/usb_intf.c:404
 usb_probe_interface+0xfcc/0x1520 drivers/usb/core/driver.c:396
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_set_configuration+0x3872/0x3eb0 drivers/usb/core/message.c:2164
 usb_generic_driver_probe+0x138/0x300 drivers/usb/core/generic.c:238
 usb_probe_device+0x317/0x570 drivers/usb/core/driver.c:293
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_new_device+0x1bd4/0x2a30 drivers/usb/core/hub.c:2555
 hub_port_connect drivers/usb/core/hub.c:5223 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
 port_event drivers/usb/core/hub.c:5509 [inline]
 hub_event+0x5b99/0x8870 drivers/usb/core/hub.c:5591
 process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
 process_scheduled_works kernel/workqueue.c:2337 [inline]
 worker_thread+0x12bc/0x2340 kernel/workqueue.c:2423
 kthread+0x521/0x560 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Local variable ----data@usb_read8 created at:
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
=====================================================
=====================================================
BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:611 [inline]
BUG: KMSAN: uninit-value in string+0x573/0x6d0 lib/vsprintf.c:693
CPU: 1 PID: 57 Comm: kworker/1:1 Tainted: G    B             5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
 string_nocheck lib/vsprintf.c:611 [inline]
 string+0x573/0x6d0 lib/vsprintf.c:693
 vsnprintf+0x1acd/0x3600 lib/vsprintf.c:2651
 va_format lib/vsprintf.c:1663 [inline]
 pointer+0x1cbb/0x1ea0 lib/vsprintf.c:2283
 vsnprintf+0x15f2/0x3600 lib/vsprintf.c:2655
 vprintk_store+0x2ab/0x1df0 kernel/printk/printk.c:1990
 vprintk_emit+0x28e/0x8b0 kernel/printk/printk.c:2098
 dev_vprintk_emit+0x5f7/0x6d8 drivers/base/core.c:4434
 dev_printk_emit+0x1ce/0x210 drivers/base/core.c:4445
 __dev_printk+0x3dc/0x458 drivers/base/core.c:4457
 _dev_info+0x1e5/0x22a drivers/base/core.c:4503
 r871xu_drv_init+0x1a59/0x2fe0 drivers/staging/rtl8712/usb_intf.c:404
 usb_probe_interface+0xfcc/0x1520 drivers/usb/core/driver.c:396
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_set_configuration+0x3872/0x3eb0 drivers/usb/core/message.c:2164
 usb_generic_driver_probe+0x138/0x300 drivers/usb/core/generic.c:238
 usb_probe_device+0x317/0x570 drivers/usb/core/driver.c:293
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_new_device+0x1bd4/0x2a30 drivers/usb/core/hub.c:2555
 hub_port_connect drivers/usb/core/hub.c:5223 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
 port_event drivers/usb/core/hub.c:5509 [inline]
 hub_event+0x5b99/0x8870 drivers/usb/core/hub.c:5591
 process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
 process_scheduled_works kernel/workqueue.c:2337 [inline]
 worker_thread+0x12bc/0x2340 kernel/workqueue.c:2423
 kthread+0x521/0x560 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Local variable ----data@usb_read8 created at:
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
=====================================================
=====================================================
BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:611 [inline]
BUG: KMSAN: uninit-value in string+0x573/0x6d0 lib/vsprintf.c:693
CPU: 1 PID: 57 Comm: kworker/1:1 Tainted: G    B             5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
 string_nocheck lib/vsprintf.c:611 [inline]
 string+0x573/0x6d0 lib/vsprintf.c:693
 vsnprintf+0x1acd/0x3600 lib/vsprintf.c:2651
 va_format lib/vsprintf.c:1663 [inline]
 pointer+0x1cbb/0x1ea0 lib/vsprintf.c:2283
 vsnprin
Lost 1756 message(s)!
=====================================================
BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:611 [inline]
BUG: KMSAN: uninit-value in string+0x573/0x6d0 lib/vsprintf.c:693
CPU: 1 PID: 57 Comm: kworker/1:1 Tainted: G    B             5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
 string_nocheck lib/vsprintf.c:611 [inline]
 string+0x573/0x6d0 lib/vsprintf.c:693
 vsnprintf+0x1acd/0x3600 lib/vsprintf.c:2651
 va_format lib/vsprintf.c:1663 [inline]
 pointer+0x1cbb/0x1ea0 lib/vsprintf.c:2283
 vsnprintf+0x15f2/0x3600 lib/vsprintf.c:2655
 vprintk_store+0x2ab/0x1df0 kernel/printk/printk.c:1990
 vprintk_emit+0x28e/0x8b0 kernel/printk/printk.c:2098
 dev_vprintk_emit+0x5f7/0x6d8 drivers/base/core.c:4434
 dev_printk_emit+0x1ce/0x210 drivers/base/core.c:4445
 __dev_printk+0x3dc/0x458 drivers/base/core.c:4457
 _dev_info+0x1e5/0x22a drivers/base/core.c:4503
 r871xu_drv_init+0x1a59/0x2fe0 drivers/staging/rtl8712/usb_intf.c:404
 usb_probe_interface+0xfcc/0x1520 drivers/usb/core/driver.c:396
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_set_configuration+0x3872/0x3eb0 drivers/usb/core/message.c:2164
 usb_generic_driver_probe+0x138/0x300 drivers/usb/core/generic.c:238
 usb_probe_device+0x317/0x570 drivers/usb/core/driver.c:293
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_new_device+0x1bd4/0x2a30 drivers/usb/core/hub.c:2555
 hub_port_connect drivers/usb/core/hub.c:5223 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
 port_event drivers/usb/core/hub.c:5509 [inline]
 hub_event+0x5b99/0x8870 drivers/usb/core/hub.c:5591
 process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
 process_scheduled_works kernel/workqueue.c:2337 [inline]
 worker_thread+0x12bc/0x2340 kernel/workqueue.c:2423
 kthread+0x521/0x560 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Local variable ----data@usb_read8 created at:
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
=====================================================
=====================================================
BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:611 [inline]
BUG: KMSAN: uninit-value in string+0x573/0x6d0 lib/vsprintf.c:693
CPU: 1 PID: 57 Comm: kworker/1:1 Tainted: G    B             5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
 string_nocheck lib/vsprintf.c:611 [inline]
 string+0x573/0x6d0 lib/vsprintf.c:693
 vsnprintf+0x1acd/0x3600 lib/vsprintf.c:2651
 va_format lib/vsprintf.c:1663 [inline]
 pointer+0x1cbb/0x1ea0 lib/vsprintf.c:2283
 vsnprintf+0x15f2/0x3600 lib/vsprintf.c:2655
 vprintk_store+0x2ab/0x1df0 kernel/printk/printk.c:1990
 vprintk_emit+0x28e/0x8b0 kernel/printk/printk.c:2098
 dev_vprintk_emit+0x5f7/0x6d8 drivers/base/core.c:4434
 dev_printk_emit+0x1ce/0x210 drivers/base/core.c:4445
 __dev_printk+0x3dc/0x458 drivers/base/core.c:4457
 _dev_info+0x1e5/0x22a drivers/base/core.c:4503
 r871xu_drv_init+0x1a59/0x2fe0 drivers/staging/rtl8712/usb_intf.c:404
 usb_probe_interface+0xfcc/0x1520 drivers/usb/core/driver.c:396
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_set_configuration+0x3872/0x3eb0 drivers/usb/core/message.c:2164
 usb_generic_driver_probe+0x138/0x300 drivers/usb/core/generic.c:238
 usb_probe_device+0x317/0x570 drivers/usb/core/driver.c:293
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_new_device+0x1bd4/0x2a30 drivers/usb/core/hub.c:2555
 hub_port_connect drivers/usb/core/hub.c:5223 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
 port_event drivers/usb/core/hub.c:5509 [inline]
 hub_event+0x5b99/0x8870 drivers/usb/core/hub.c:5591
 process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
 process_scheduled_works kernel/workqueue.c:2337 [inline]
 worker_thread+0x12bc/0x2340 kernel/workqueue.c:2423
 kthread+0x521/0x560 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Local variable ----data@usb_read8 created at:
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
=====================================================
=====================================================
BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:611 [inline]
BUG: KMSAN: uninit-value in string+0x573/0x6d0 lib/vsprintf.c:693
CPU: 1 PID: 57 Comm: kworker/1:1 Tainted: G    B             5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
 string_nocheck lib/vsprintf.c:611 [inline]
 string+0x573/0x6d0 lib/vsprintf.c:693
 vsnprintf+0x1acd/0x3600 lib/vsprintf.c:2651
 va_format lib/vsprintf.c:1663 [inline]
 pointer+0x1cbb/0x1ea0 lib/vsprintf.c:2283
 vsnprintf+0x15f2/0x3600 lib/vsprintf.c:2655
 vprintk_store+0x2ab/0x1df0 kernel/printk/printk.c:1990
 vprintk_emit+0x28e/0x8b0 kernel/printk/printk.c:2098
 dev_vprintk_emit+0x5f7/0x6d8 drivers/base/core.c:4434
 dev_printk_emit+0x1ce/0x210 drivers/base/core.c:4445
 __dev_printk+0x3dc/0x458 drivers/base/core.c:4457
 _dev_info+0x1e5/0x22a drivers/base/core.c:4503
 r871xu_drv_init+0x1a59/0x2fe0 drivers/staging/rtl8712/usb_intf.c:404
 usb_probe_interface+0xfcc/0x1520 drivers/usb/core/driver.c:396
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_set_configuration+0x3872/0x3eb0 drivers/usb/core/message.c:2164
 usb_generic_driver_probe+0x138/0x300 drivers/usb/core/generic.c:238
 usb_probe_device+0x317/0x570 drivers/usb/core/driver.c:293
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_new_device+0x1bd4/0x2a30 drivers/usb/core/hub.c:2555
 hub_port_connect drivers/usb/core/hub.c:5223 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
 port_event drivers/usb/core/hub.c:5509 [inline]
 hub_event+0x5b99/0x8870 drivers/usb/core/hub.c:5591
 process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
 process_scheduled_works kernel/workqueue.c:2337 [inline]
 worker_thread+0x12bc/0x2340 kernel/workqueue.c:2423
 kthread+0x521/0x560 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Local variable ----data@usb_read8 created at:
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
=====================================================
=====================================================
BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:611 [inline]
BUG: KMSAN: uninit-value in string+0x573/0x6d0 lib/vsprintf.c:693
CPU: 1 PID: 57 Comm: kworker/1:1 Tainted: G    B             5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
 string_nocheck lib/vsprintf.c:611 [inline]
 string+0x573/0x6d0 lib/vsprintf.c:693
 vsnprintf+0x1acd/0x3600 lib/vsprintf.c:2651
 va_format lib/vsprintf.c:1663 [inline]
 pointer+0x1cbb/0x1ea0 lib/vsprintf.c:2283
 vsnprin
Lost 1756 message(s)!
=====================================================
BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:611 [inline]
BUG: KMSAN: uninit-value in string+0x573/0x6d0 lib/vsprintf.c:693
CPU: 1 PID: 57 Comm: kworker/1:1 Tainted: G    B             5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
 string_nocheck lib/vsprintf.c:611 [inline]
 string+0x573/0x6d0 lib/vsprintf.c:693
 vsnprintf+0x1acd/0x3600 lib/vsprintf.c:2651
 va_format lib/vsprintf.c:1663 [inline]
 pointer+0x1cbb/0x1ea0 lib/vsprintf.c:2283
 vsnprintf+0x15f2/0x3600 lib/vsprintf.c:2655
 vprintk_store+0x2ab/0x1df0 kernel/printk/printk.c:1990
 vprintk_emit+0x28e/0x8b0 kernel/printk/printk.c:2098
 dev_vprintk_emit+0x5f7/0x6d8 drivers/base/core.c:4434
 dev_printk_emit+0x1ce/0x210 drivers/base/core.c:4445
 __dev_printk+0x3dc/0x458 drivers/base/core.c:4457
 _dev_info+0x1e5/0x22a drivers/base/core.c:4503
 r871xu_drv_init+0x1a59/0x2fe0 drivers/staging/rtl8712/usb_intf.c:404
 usb_probe_interface+0xfcc/0x1520 drivers/usb/core/driver.c:396
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_set_configuration+0x3872/0x3eb0 drivers/usb/core/message.c:2164
 usb_generic_driver_probe+0x138/0x300 drivers/usb/core/generic.c:238
 usb_probe_device+0x317/0x570 drivers/usb/core/driver.c:293
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_new_device+0x1bd4/0x2a30 drivers/usb/core/hub.c:2555
 hub_port_connect drivers/usb/core/hub.c:5223 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
 port_event drivers/usb/core/hub.c:5509 [inline]
 hub_event+0x5b99/0x8870 drivers/usb/core/hub.c:5591
 process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
 process_scheduled_works kernel/workqueue.c:2337 [inline]
 worker_thread+0x12bc/0x2340 kernel/workqueue.c:2423
 kthread+0x521/0x560 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Local variable ----data@usb_read8 created at:
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
=====================================================
=====================================================
BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:611 [inline]
BUG: KMSAN: uninit-value in string+0x573/0x6d0 lib/vsprintf.c:693
CPU: 1 PID: 57 Comm: kworker/1:1 Tainted: G    B             5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x24c/0x2e0 lib/dump_stack.c:120
 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197
 string_nocheck lib/vsprintf.c:611 [inline]
 string+0x573/0x6d0 lib/vsprintf.c:693
 vsnprintf+0x1acd/0x3600 lib/vsprintf.c:2651
 va_format lib/vsprintf.c:1663 [inline]
 pointer+0x1cbb/0x1ea0 lib/vsprintf.c:2283
 vsnprintf+0x15f2/0x3600 lib/vsprintf.c:2655
 vprintk_store+0x2ab/0x1df0 kernel/printk/printk.c:1990
 vprintk_emit+0x28e/0x8b0 kernel/printk/printk.c:2098
 dev_vprintk_emit+0x5f7/0x6d8 drivers/base/core.c:4434
 dev_printk_emit+0x1ce/0x210 drivers/base/core.c:4445
 __dev_printk+0x3dc/0x458 drivers/base/core.c:4457
 _dev_info+0x1e5/0x22a drivers/base/core.c:4503
 r871xu_drv_init+0x1a59/0x2fe0 drivers/staging/rtl8712/usb_intf.c:404
 usb_probe_interface+0xfcc/0x1520 drivers/usb/core/driver.c:396
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_set_configuration+0x3872/0x3eb0 drivers/usb/core/message.c:2164
 usb_generic_driver_probe+0x138/0x300 drivers/usb/core/generic.c:238
 usb_probe_device+0x317/0x570 drivers/usb/core/driver.c:293
 really_probe+0xe15/0x24d0 drivers/base/dd.c:561
 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849
 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431
 __device_attach+0x56a/0x890 drivers/base/dd.c:917
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964
 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491
 device_add+0x2c15/0x31d0 drivers/base/core.c:3242
 usb_new_device+0x1bd4/0x2a30 drivers/usb/core/hub.c:2555
 hub_port_connect drivers/usb/core/hub.c:5223 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
 port_event drivers/usb/core/hub.c:5509 [inline]
 hub_event+0x5b99/0x8870 drivers/usb/core/hub.c:5591
 process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275
 process_scheduled_works kernel/workqueue.c:2337 [inline]
 worker_thread+0x12bc/0x2340 kernel/workqueue.c:2423
 kthread+0x521/0x560 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Local variable ----data@usb_read8 created at:
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
=====================================================