smsc95xx v2.0.0 ===================================================== BUG: KMSAN: uninit-value in smsc95xx_eeprom_confirm_not_busy+0x1eb/0x360 drivers/net/usb/smsc95xx.c:348 smsc95xx_eeprom_confirm_not_busy+0x1eb/0x360 drivers/net/usb/smsc95xx.c:348 smsc95xx_read_eeprom+0x59/0x670 drivers/net/usb/smsc95xx.c:367 smsc95xx_init_mac_address drivers/net/usb/smsc95xx.c:816 [inline] smsc95xx_bind+0x6d8/0x22e0 drivers/net/usb/smsc95xx.c:1128 usbnet_probe+0x100b/0x4060 drivers/net/usb/usbnet.c:1750 usb_probe_interface+0xc75/0x1210 drivers/usb/core/driver.c:396 really_probe+0x506/0xf40 drivers/base/dd.c:658 __driver_probe_device+0x2a7/0x5d0 drivers/base/dd.c:800 driver_probe_device+0x72/0x7b0 drivers/base/dd.c:830 __device_attach_driver+0x55a/0x8f0 drivers/base/dd.c:958 bus_for_each_drv+0x3ff/0x620 drivers/base/bus.c:457 __device_attach+0x3bd/0x640 drivers/base/dd.c:1030 device_initial_probe+0x32/0x40 drivers/base/dd.c:1079 bus_probe_device+0x3d8/0x5a0 drivers/base/bus.c:532 device_add+0x1700/0x1f20 drivers/base/core.c:3624 usb_set_configuration+0x31c9/0x38c0 drivers/usb/core/message.c:2207 usb_generic_driver_probe+0x109/0x2a0 drivers/usb/core/generic.c:238 usb_probe_device+0x290/0x4a0 drivers/usb/core/driver.c:293 really_probe+0x506/0xf40 drivers/base/dd.c:658 __driver_probe_device+0x2a7/0x5d0 drivers/base/dd.c:800 driver_probe_device+0x72/0x7b0 drivers/base/dd.c:830 __device_attach_driver+0x55a/0x8f0 drivers/base/dd.c:958 bus_for_each_drv+0x3ff/0x620 drivers/base/bus.c:457 __device_attach+0x3bd/0x640 drivers/base/dd.c:1030 device_initial_probe+0x32/0x40 drivers/base/dd.c:1079 bus_probe_device+0x3d8/0x5a0 drivers/base/bus.c:532 device_add+0x1700/0x1f20 drivers/base/core.c:3624 usb_new_device+0x15f6/0x22f0 drivers/usb/core/hub.c:2597 hub_port_connect drivers/usb/core/hub.c:5459 [inline] hub_port_connect_change drivers/usb/core/hub.c:5599 [inline] port_event drivers/usb/core/hub.c:5759 [inline] hub_event+0x53bc/0x7290 drivers/usb/core/hub.c:5841 process_one_work kernel/workqueue.c:2630 [inline] process_scheduled_works+0x104e/0x1e70 kernel/workqueue.c:2703 worker_thread+0xf45/0x1490 kernel/workqueue.c:2784 kthread+0x3e8/0x540 kernel/kthread.c:388 ret_from_fork+0x66/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 Local variable buf.i created at: smsc95xx_read_reg drivers/net/usb/smsc95xx.c:90 [inline] smsc95xx_eeprom_confirm_not_busy+0x92/0x360 drivers/net/usb/smsc95xx.c:342 smsc95xx_read_eeprom+0x59/0x670 drivers/net/usb/smsc95xx.c:367 CPU: 1 PID: 19315 Comm: kworker/1:1 Not tainted 6.6.0-rc7-syzkaller-00039-g4f82870119a4 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 Workqueue: usb_hub_wq hub_event =====================================================