===================================================== BUG: KMSAN: kernel-usb-infoleak in usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430 usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430 usb_start_wait_urb+0x153/0x4b0 drivers/usb/core/message.c:58 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x487/0x7c0 drivers/usb/core/message.c:153 r8712_usbctrl_vendorreq+0x48e/0x560 drivers/staging/rtl8712/usb_ops_linux.c:496 usb_write8+0x110/0x160 drivers/staging/rtl8712/usb_ops.c:101 r8712_write8+0xc3/0xf0 drivers/staging/rtl8712/rtl8712_io.c:50 efuse_one_byte_read+0x117/0x2e0 drivers/staging/rtl8712/rtl8712_efuse.c:72 r8712_efuse_pg_packet_read+0x2ba/0xd40 drivers/staging/rtl8712/rtl8712_efuse.c:245 r871xu_drv_init+0x1bc0/0x3070 drivers/staging/rtl8712/usb_intf.c:440 usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396 really_probe+0x653/0x14b0 drivers/base/dd.c:596 __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:755 driver_probe_device drivers/base/dd.c:785 [inline] __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:902 bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427 __device_attach+0x593/0x8e0 drivers/base/dd.c:973 device_initial_probe+0x4a/0x60 drivers/base/dd.c:1020 bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487 device_add+0x1fff/0x26e0 drivers/base/core.c:3405 usb_set_configuration+0x37e9/0x3ed0 drivers/usb/core/message.c:2170 usb_generic_driver_probe+0x13c/0x300 drivers/usb/core/generic.c:238 usb_probe_device+0x309/0x570 drivers/usb/core/driver.c:293 really_probe+0x653/0x14b0 drivers/base/dd.c:596 __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:755 driver_probe_device drivers/base/dd.c:785 [inline] __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:902 bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427 __device_attach+0x593/0x8e0 drivers/base/dd.c:973 device_initial_probe+0x4a/0x60 drivers/base/dd.c:1020 bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487 device_add+0x1fff/0x26e0 drivers/base/core.c:3405 usb_new_device+0x1b8e/0x2950 drivers/usb/core/hub.c:2566 hub_port_connect drivers/usb/core/hub.c:5358 [inline] hub_port_connect_change drivers/usb/core/hub.c:5502 [inline] port_event drivers/usb/core/hub.c:5660 [inline] hub_event+0x58e3/0x89e0 drivers/usb/core/hub.c:5742 process_one_work+0xdb6/0x1820 kernel/workqueue.c:2307 worker_thread+0x10b3/0x21e0 kernel/workqueue.c:2454 kthread+0x3c7/0x500 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 Uninit was stored to memory at: r8712_usbctrl_vendorreq+0x3dd/0x560 drivers/staging/rtl8712/usb_ops_linux.c:494 usb_write8+0x110/0x160 drivers/staging/rtl8712/usb_ops.c:101 r8712_write8+0xc3/0xf0 drivers/staging/rtl8712/rtl8712_io.c:50 efuse_one_byte_read+0x117/0x2e0 drivers/staging/rtl8712/rtl8712_efuse.c:72 r8712_efuse_pg_packet_read+0x2ba/0xd40 drivers/staging/rtl8712/rtl8712_efuse.c:245 r871xu_drv_init+0x1bc0/0x3070 drivers/staging/rtl8712/usb_intf.c:440 usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396 really_probe+0x653/0x14b0 drivers/base/dd.c:596 __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:755 driver_probe_device drivers/base/dd.c:785 [inline] __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:902 bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427 __device_attach+0x593/0x8e0 drivers/base/dd.c:973 device_initial_probe+0x4a/0x60 drivers/base/dd.c:1020 bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487 device_add+0x1fff/0x26e0 drivers/base/core.c:3405 usb_set_configuration+0x37e9/0x3ed0 drivers/usb/core/message.c:2170 usb_generic_driver_probe+0x13c/0x300 drivers/usb/core/generic.c:238 usb_probe_device+0x309/0x570 drivers/usb/core/driver.c:293 really_probe+0x653/0x14b0 drivers/base/dd.c:596 __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:755 driver_probe_device drivers/base/dd.c:785 [inline] __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:902 bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427 __device_attach+0x593/0x8e0 drivers/base/dd.c:973 device_initial_probe+0x4a/0x60 drivers/base/dd.c:1020 bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487 device_add+0x1fff/0x26e0 drivers/base/core.c:3405 usb_new_device+0x1b8e/0x2950 drivers/usb/core/hub.c:2566 hub_port_connect drivers/usb/core/hub.c:5358 [inline] hub_port_connect_change drivers/usb/core/hub.c:5502 [inline] port_event drivers/usb/core/hub.c:5660 [inline] hub_event+0x58e3/0x89e0 drivers/usb/core/hub.c:5742 process_one_work+0xdb6/0x1820 kernel/workqueue.c:2307 worker_thread+0x10b3/0x21e0 kernel/workqueue.c:2454 kthread+0x3c7/0x500 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 Uninit was stored to memory at: usb_write8+0x14a/0x160 drivers/staging/rtl8712/usb_ops.c:100 r8712_write8+0xc3/0xf0 drivers/staging/rtl8712/rtl8712_io.c:50 efuse_one_byte_read+0x117/0x2e0 drivers/staging/rtl8712/rtl8712_efuse.c:72 r8712_efuse_pg_packet_read+0x2ba/0xd40 drivers/staging/rtl8712/rtl8712_efuse.c:245 r871xu_drv_init+0x1bc0/0x3070 drivers/staging/rtl8712/usb_intf.c:440 usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396 really_probe+0x653/0x14b0 drivers/base/dd.c:596 __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:755 driver_probe_device drivers/base/dd.c:785 [inline] __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:902 bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427 __device_attach+0x593/0x8e0 drivers/base/dd.c:973 device_initial_probe+0x4a/0x60 drivers/base/dd.c:1020 bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487 device_add+0x1fff/0x26e0 drivers/base/core.c:3405 usb_set_configuration+0x37e9/0x3ed0 drivers/usb/core/message.c:2170 usb_generic_driver_probe+0x13c/0x300 drivers/usb/core/generic.c:238 usb_probe_device+0x309/0x570 drivers/usb/core/driver.c:293 really_probe+0x653/0x14b0 drivers/base/dd.c:596 __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:755 driver_probe_device drivers/base/dd.c:785 [inline] __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:902 bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427 __device_attach+0x593/0x8e0 drivers/base/dd.c:973 device_initial_probe+0x4a/0x60 drivers/base/dd.c:1020 bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487 device_add+0x1fff/0x26e0 drivers/base/core.c:3405 usb_new_device+0x1b8e/0x2950 drivers/usb/core/hub.c:2566 hub_port_connect drivers/usb/core/hub.c:5358 [inline] hub_port_connect_change drivers/usb/core/hub.c:5502 [inline] port_event drivers/usb/core/hub.c:5660 [inline] hub_event+0x58e3/0x89e0 drivers/usb/core/hub.c:5742 process_one_work+0xdb6/0x1820 kernel/workqueue.c:2307 worker_thread+0x10b3/0x21e0 kernel/workqueue.c:2454 kthread+0x3c7/0x500 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 Local variable data created at: usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33 r8712_read8+0xa5/0xd0 drivers/staging/rtl8712/rtl8712_io.c:29 Byte 0 of 1 is uninitialized Memory access of size 1 starts at ffff888084f48ad0 CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.17.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event =====================================================