usb 1-1: New USB device found, idVendor=13d3, idProduct=3340, bcdDevice=4f.b7 usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 r8712u: register rtl8712_netdev_ops to netdev_ops usb 1-1: r8712u: USB_SPEED_HIGH with 0 endpoints ===================================================== BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:638 [inline] BUG: KMSAN: uninit-value in string+0x4ec/0x6f0 lib/vsprintf.c:720 string_nocheck lib/vsprintf.c:638 [inline] string+0x4ec/0x6f0 lib/vsprintf.c:720 vsnprintf+0x2222/0x3650 lib/vsprintf.c:2795 va_format lib/vsprintf.c:1684 [inline] pointer+0x1844/0x2060 lib/vsprintf.c:2425 vsnprintf+0x1a9b/0x3650 lib/vsprintf.c:2799 vprintk_store+0x537/0x2150 kernel/printk/printk.c:2135 vprintk_emit+0x25c/0x950 kernel/printk/printk.c:2229 dev_vprintk_emit+0x5ef/0x6d0 drivers/base/core.c:4604 dev_printk_emit+0x1dd/0x21f drivers/base/core.c:4615 __dev_printk+0x3be/0x440 drivers/base/core.c:4627 _dev_info+0x1ea/0x22f drivers/base/core.c:4673 r871xu_drv_init+0x1929/0x3070 drivers/staging/rtl8712/usb_intf.c:401 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 CPU: 0 PID: 7 Comm: kworker/0:1 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 =====================================================