aqc111 5-1:1.105 (unnamed net_device) (uninitialized): Failed to read(0x1) reg index 0x0001: -71
aqc111 5-1:1.105 (unnamed net_device) (uninitialized): Failed to read(0x1) reg index 0x0001: -71
=====================================================
BUG: KMSAN: uninit-value in hex_byte_pack include/linux/hex.h:14 [inline]
BUG: KMSAN: uninit-value in mac_address_string+0xb97/0xf20 lib/vsprintf.c:-1
 hex_byte_pack include/linux/hex.h:14 [inline]
 mac_address_string+0xb97/0xf20 lib/vsprintf.c:-1
 pointer+0xc94/0x1bd0 lib/vsprintf.c:2458
 vsnprintf+0xf8a/0x1bd0 lib/vsprintf.c:2856
 va_format lib/vsprintf.c:1715 [inline]
 pointer+0x85d/0x1bd0 lib/vsprintf.c:2474
 vsnprintf+0xf8a/0x1bd0 lib/vsprintf.c:2856
 vprintk_store+0x3ae/0x1530 kernel/printk/printk.c:2279
 vprintk_emit+0x307/0xcd0 kernel/printk/printk.c:2426
 dev_vprintk_emit+0x5ac/0x7a0 drivers/base/core.c:4891
 dev_printk_emit+0x180/0x1b0 drivers/base/core.c:4902
 __netdev_printk+0x677/0xa00 net/core/dev.c:12403
 netdev_info+0x1b4/0x1d0 net/core/dev.c:12458
 usbnet_probe+0x4124/0x4390 drivers/net/usb/usbnet.c:1853
 usb_probe_interface+0xd01/0x1310 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x4d1/0xd90 drivers/base/dd.c:658
 __driver_probe_device+0x268/0x380 drivers/base/dd.c:800
 driver_probe_device+0x70/0x8b0 drivers/base/dd.c:830
 __device_attach_driver+0x4ee/0x950 drivers/base/dd.c:958
 bus_for_each_drv+0x3e0/0x680 drivers/base/bus.c:462
 __device_attach+0x3c8/0x5c0 drivers/base/dd.c:1030
 device_initial_probe+0x33/0x40 drivers/base/dd.c:1079
 bus_probe_device+0x3ba/0x5e0 drivers/base/bus.c:537
 device_add+0x12a9/0x1c10 drivers/base/core.c:3666
 usb_set_configuration+0x3493/0x3b70 drivers/usb/core/message.c:2210
 usb_generic_driver_probe+0xfc/0x290 drivers/usb/core/generic.c:250
 usb_probe_device+0x38a/0x690 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x4d1/0xd90 drivers/base/dd.c:658
 __driver_probe_device+0x268/0x380 drivers/base/dd.c:800
 driver_probe_device+0x70/0x8b0 drivers/base/dd.c:830
 __device_attach_driver+0x4ee/0x950 drivers/base/dd.c:958
 bus_for_each_drv+0x3e0/0x680 drivers/base/bus.c:462
 __device_attach+0x3c8/0x5c0 drivers/base/dd.c:1030
 device_initial_probe+0x33/0x40 drivers/base/dd.c:1079
 bus_probe_device+0x3ba/0x5e0 drivers/base/bus.c:537
 device_add+0x12a9/0x1c10 drivers/base/core.c:3666
 usb_new_device+0x104b/0x20c0 drivers/usb/core/hub.c:2663
 hub_port_connect drivers/usb/core/hub.c:5531 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5671 [inline]
 port_event drivers/usb/core/hub.c:5831 [inline]
 hub_event+0x5588/0x7580 drivers/usb/core/hub.c:5913
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xb97/0x1d90 kernel/workqueue.c:3319
 worker_thread+0xedf/0x1590 kernel/workqueue.c:3400
 kthread+0xd59/0xf00 kernel/kthread.c:464
 ret_from_fork+0x6e/0x90 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Uninit was stored to memory at:
 dev_addr_mod+0xb0/0x550 net/core/dev_addr_lists.c:582
 __dev_addr_set include/linux/netdevice.h:4874 [inline]
 eth_hw_addr_set include/linux/etherdevice.h:325 [inline]
 aqc111_bind+0x35f/0x1150 drivers/net/usb/aqc111.c:717
 usbnet_probe+0xbe6/0x4390 drivers/net/usb/usbnet.c:1772
 usb_probe_interface+0xd01/0x1310 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x4d1/0xd90 drivers/base/dd.c:658
 __driver_probe_device+0x268/0x380 drivers/base/dd.c:800
 driver_probe_device+0x70/0x8b0 drivers/base/dd.c:830
 __device_attach_driver+0x4ee/0x950 drivers/base/dd.c:958
 bus_for_each_drv+0x3e0/0x680 drivers/base/bus.c:462
 __device_attach+0x3c8/0x5c0 drivers/base/dd.c:1030
 device_initial_probe+0x33/0x40 drivers/base/dd.c:1079
 bus_probe_device+0x3ba/0x5e0 drivers/base/bus.c:537
 device_add+0x12a9/0x1c10 drivers/base/core.c:3666
 usb_set_configuration+0x3493/0x3b70 drivers/usb/core/message.c:2210
 usb_generic_driver_probe+0xfc/0x290 drivers/usb/core/generic.c:250
 usb_probe_device+0x38a/0x690 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x4d1/0xd90 drivers/base/dd.c:658
 __driver_probe_device+0x268/0x380 drivers/base/dd.c:800
 driver_probe_device+0x70/0x8b0 drivers/base/dd.c:830
 __device_attach_driver+0x4ee/0x950 drivers/base/dd.c:958
 bus_for_each_drv+0x3e0/0x680 drivers/base/bus.c:462
 __device_attach+0x3c8/0x5c0 drivers/base/dd.c:1030
 device_initial_probe+0x33/0x40 drivers/base/dd.c:1079
 bus_probe_device+0x3ba/0x5e0 drivers/base/bus.c:537
 device_add+0x12a9/0x1c10 drivers/base/core.c:3666
 usb_new_device+0x104b/0x20c0 drivers/usb/core/hub.c:2663
 hub_port_connect drivers/usb/core/hub.c:5531 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5671 [inline]
 port_event drivers/usb/core/hub.c:5831 [inline]
 hub_event+0x5588/0x7580 drivers/usb/core/hub.c:5913
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xb97/0x1d90 kernel/workqueue.c:3319
 worker_thread+0xedf/0x1590 kernel/workqueue.c:3400
 kthread+0xd59/0xf00 kernel/kthread.c:464
 ret_from_fork+0x6e/0x90 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Uninit was stored to memory at:
 ether_addr_copy include/linux/etherdevice.h:305 [inline]
 aqc111_read_perm_mac drivers/net/usb/aqc111.c:663 [inline]
 aqc111_bind+0x794/0x1150 drivers/net/usb/aqc111.c:713
 usbnet_probe+0xbe6/0x4390 drivers/net/usb/usbnet.c:1772
 usb_probe_interface+0xd01/0x1310 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x4d1/0xd90 drivers/base/dd.c:658
 __driver_probe_device+0x268/0x380 drivers/base/dd.c:800
 driver_probe_device+0x70/0x8b0 drivers/base/dd.c:830
 __device_attach_driver+0x4ee/0x950 drivers/base/dd.c:958
 bus_for_each_drv+0x3e0/0x680 drivers/base/bus.c:462
 __device_attach+0x3c8/0x5c0 drivers/base/dd.c:1030
 device_initial_probe+0x33/0x40 drivers/base/dd.c:1079
 bus_probe_device+0x3ba/0x5e0 drivers/base/bus.c:537
 device_add+0x12a9/0x1c10 drivers/base/core.c:3666
 usb_set_configuration+0x3493/0x3b70 drivers/usb/core/message.c:2210
 usb_generic_driver_probe+0xfc/0x290 drivers/usb/core/generic.c:250
 usb_probe_device+0x38a/0x690 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x4d1/0xd90 drivers/base/dd.c:658
 __driver_probe_device+0x268/0x380 drivers/base/dd.c:800
 driver_probe_device+0x70/0x8b0 drivers/base/dd.c:830
 __device_attach_driver+0x4ee/0x950 drivers/base/dd.c:958
 bus_for_each_drv+0x3e0/0x680 drivers/base/bus.c:462
 __device_attach+0x3c8/0x5c0 drivers/base/dd.c:1030
 device_initial_probe+0x33/0x40 drivers/base/dd.c:1079
 bus_probe_device+0x3ba/0x5e0 drivers/base/bus.c:537
 device_add+0x12a9/0x1c10 drivers/base/core.c:3666
 usb_new_device+0x104b/0x20c0 drivers/usb/core/hub.c:2663
 hub_port_connect drivers/usb/core/hub.c:5531 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5671 [inline]
 port_event drivers/usb/core/hub.c:5831 [inline]
 hub_event+0x5588/0x7580 drivers/usb/core/hub.c:5913
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xb97/0x1d90 kernel/workqueue.c:3319
 worker_thread+0xedf/0x1590 kernel/workqueue.c:3400
 kthread+0xd59/0xf00 kernel/kthread.c:464
 ret_from_fork+0x6e/0x90 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Local variable buf.i created at:
 aqc111_read_perm_mac drivers/net/usb/aqc111.c:656 [inline]
 aqc111_bind+0x221/0x1150 drivers/net/usb/aqc111.c:713
 usbnet_probe+0xbe6/0x4390 drivers/net/usb/usbnet.c:1772

CPU: 0 UID: 0 PID: 8228 Comm: kworker/0:6 Not tainted 6.15.0-rc3-syzkaller-00094-g02ddfb981de8 #0 PREEMPT(undef) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: usb_hub_wq hub_event
=====================================================