cdc_ether: probe of 1-1:1.0 failed with error -22 smsc75xx v1.0.0 ===================================================== BUG: KMSAN: uninit-value in smsc75xx_wait_ready drivers/net/usb/smsc75xx.c:977 [inline] BUG: KMSAN: uninit-value in smsc75xx_bind+0x4a9/0x11d0 drivers/net/usb/smsc75xx.c:1484 smsc75xx_wait_ready drivers/net/usb/smsc75xx.c:977 [inline] smsc75xx_bind+0x4a9/0x11d0 drivers/net/usb/smsc75xx.c:1484 usbnet_probe+0x10a2/0x3f30 drivers/net/usb/usbnet.c:1740 usb_probe_interface+0xc4b/0x11f0 drivers/usb/core/driver.c:396 really_probe+0x506/0x1000 drivers/base/dd.c:639 __driver_probe_device+0x2fa/0x3d0 drivers/base/dd.c:778 driver_probe_device+0x72/0x7a0 drivers/base/dd.c:808 __device_attach_driver+0x548/0x8e0 drivers/base/dd.c:936 bus_for_each_drv+0x1fc/0x360 drivers/base/bus.c:427 __device_attach+0x42a/0x720 drivers/base/dd.c:1008 device_initial_probe+0x2e/0x40 drivers/base/dd.c:1057 bus_probe_device+0x13c/0x3b0 drivers/base/bus.c:487 device_add+0x1d4b/0x26c0 drivers/base/core.c:3517 usb_set_configuration+0x30f8/0x37e0 drivers/usb/core/message.c:2170 usb_generic_driver_probe+0x105/0x290 drivers/usb/core/generic.c:238 usb_probe_device+0x288/0x490 drivers/usb/core/driver.c:293 really_probe+0x506/0x1000 drivers/base/dd.c:639 __driver_probe_device+0x2fa/0x3d0 drivers/base/dd.c:778 driver_probe_device+0x72/0x7a0 drivers/base/dd.c:808 __device_attach_driver+0x548/0x8e0 drivers/base/dd.c:936 bus_for_each_drv+0x1fc/0x360 drivers/base/bus.c:427 __device_attach+0x42a/0x720 drivers/base/dd.c:1008 device_initial_probe+0x2e/0x40 drivers/base/dd.c:1057 bus_probe_device+0x13c/0x3b0 drivers/base/bus.c:487 device_add+0x1d4b/0x26c0 drivers/base/core.c:3517 usb_new_device+0x17ac/0x2370 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+0x5589/0x8080 drivers/usb/core/hub.c:5735 process_one_work+0xb27/0x13e0 kernel/workqueue.c:2289 worker_thread+0x1076/0x1d60 kernel/workqueue.c:2436 kthread+0x31b/0x430 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 Local variable buf.i.i created at: __smsc75xx_read_reg drivers/net/usb/smsc75xx.c:83 [inline] smsc75xx_wait_ready drivers/net/usb/smsc75xx.c:970 [inline] smsc75xx_bind+0x399/0x11d0 drivers/net/usb/smsc75xx.c:1484 usbnet_probe+0x10a2/0x3f30 drivers/net/usb/usbnet.c:1740 CPU: 1 PID: 1445 Comm: kworker/1:2 Not tainted 6.0.0-rc5-syzkaller-00050-g8f4ae27df775 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 Workqueue: usb_hub_wq hub_event =====================================================