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BUG: KMSAN: uninit-value in batadv_check_known_mac_addr net/batman-adv/hard-interface.c:512 [inline]
BUG: KMSAN: uninit-value in batadv_hardif_add_interface net/batman-adv/hard-interface.c:946 [inline]
BUG: KMSAN: uninit-value in batadv_hard_if_event+0x2905/0x3c10 net/batman-adv/hard-interface.c:1036
CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.9.0-rc8-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x21c/0x280 lib/dump_stack.c:118
 kmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:122
 __msan_warning+0x55/0x90 mm/kmsan/kmsan_instr.c:201
 batadv_check_known_mac_addr net/batman-adv/hard-interface.c:512 [inline]
 batadv_hardif_add_interface net/batman-adv/hard-interface.c:946 [inline]
 batadv_hard_if_event+0x2905/0x3c10 net/batman-adv/hard-interface.c:1036
 notifier_call_chain kernel/notifier.c:83 [inline]
 __raw_notifier_call_chain kernel/notifier.c:361 [inline]
 raw_notifier_call_chain+0x123/0x290 kernel/notifier.c:368
 call_netdevice_notifiers_info net/core/dev.c:2033 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2045 [inline]
 call_netdevice_notifiers net/core/dev.c:2059 [inline]
 register_netdevice+0x3120/0x37d0 net/core/dev.c:9861
 register_netdev+0xbe/0x100 net/core/dev.c:9961
 rtl8150_probe+0x12d9/0x15b0 drivers/net/usb/rtl8150.c:916
 usb_probe_interface+0xece/0x1550 drivers/usb/core/driver.c:396
 really_probe+0xec3/0x2430 drivers/base/dd.c:557
 driver_probe_device+0x293/0x390 drivers/base/dd.c:738
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:844
 bus_for_each_drv+0x2ca/0x3f0 drivers/base/bus.c:431
 __device_attach+0x538/0x850 drivers/base/dd.c:912
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:959
 bus_probe_device+0x177/0x3d0 drivers/base/bus.c:491
 device_add+0x3c8a/0x4240 drivers/base/core.c:2926
 usb_set_configuration+0x380f/0x3f10 drivers/usb/core/message.c:2025
 usb_generic_driver_probe+0x138/0x300 drivers/usb/core/generic.c:240
 usb_probe_device+0x317/0x570 drivers/usb/core/driver.c:293
 really_probe+0xec3/0x2430 drivers/base/dd.c:557
 driver_probe_device+0x293/0x390 drivers/base/dd.c:738
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:844
 bus_for_each_drv+0x2ca/0x3f0 drivers/base/bus.c:431
 __device_attach+0x538/0x850 drivers/base/dd.c:912
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:959
 bus_probe_device+0x177/0x3d0 drivers/base/bus.c:491
 device_add+0x3c8a/0x4240 drivers/base/core.c:2926
 usb_new_device+0x1bd4/0x2a30 drivers/usb/core/hub.c:2554
 hub_port_connect drivers/usb/core/hub.c:5208 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5348 [inline]
 port_event drivers/usb/core/hub.c:5494 [inline]
 hub_event+0x5e7b/0x8a70 drivers/usb/core/hub.c:5576
 process_one_work+0x1688/0x2140 kernel/workqueue.c:2269
 worker_thread+0x10bc/0x2730 kernel/workqueue.c:2415
 kthread+0x551/0x590 kernel/kthread.c:293
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:143 [inline]
 kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:311
 kmsan_memcpy_memmove_metadata+0x272/0x2e0 mm/kmsan/kmsan.c:248
 kmsan_memcpy_metadata+0xb/0x10 mm/kmsan/kmsan.c:268
 __msan_memcpy+0x43/0x50 mm/kmsan/kmsan_instr.c:114
 set_ethernet_addr drivers/net/usb/rtl8150.c:282 [inline]
 rtl8150_probe+0x1236/0x15b0 drivers/net/usb/rtl8150.c:912
 usb_probe_interface+0xece/0x1550 drivers/usb/core/driver.c:396
 really_probe+0xec3/0x2430 drivers/base/dd.c:557
 driver_probe_device+0x293/0x390 drivers/base/dd.c:738
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:844
 bus_for_each_drv+0x2ca/0x3f0 drivers/base/bus.c:431
 __device_attach+0x538/0x850 drivers/base/dd.c:912
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:959
 bus_probe_device+0x177/0x3d0 drivers/base/bus.c:491
 device_add+0x3c8a/0x4240 drivers/base/core.c:2926
 usb_set_configuration+0x380f/0x3f10 drivers/usb/core/message.c:2025
 usb_generic_driver_probe+0x138/0x300 drivers/usb/core/generic.c:240
 usb_probe_device+0x317/0x570 drivers/usb/core/driver.c:293
 really_probe+0xec3/0x2430 drivers/base/dd.c:557
 driver_probe_device+0x293/0x390 drivers/base/dd.c:738
 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:844
 bus_for_each_drv+0x2ca/0x3f0 drivers/base/bus.c:431
 __device_attach+0x538/0x850 drivers/base/dd.c:912
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:959
 bus_probe_device+0x177/0x3d0 drivers/base/bus.c:491
 device_add+0x3c8a/0x4240 drivers/base/core.c:2926
 usb_new_device+0x1bd4/0x2a30 drivers/usb/core/hub.c:2554
 hub_port_connect drivers/usb/core/hub.c:5208 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5348 [inline]
 port_event drivers/usb/core/hub.c:5494 [inline]
 hub_event+0x5e7b/0x8a70 drivers/usb/core/hub.c:5576
 process_one_work+0x1688/0x2140 kernel/workqueue.c:2269
 worker_thread+0x10bc/0x2730 kernel/workqueue.c:2415
 kthread+0x551/0x590 kernel/kthread.c:293
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Local variable ----node_id.i@rtl8150_probe created at:
 get_registers drivers/net/usb/rtl8150.c:911 [inline]
 set_ethernet_addr drivers/net/usb/rtl8150.c:281 [inline]
 rtl8150_probe+0xea7/0x15b0 drivers/net/usb/rtl8150.c:912
 get_registers drivers/net/usb/rtl8150.c:911 [inline]
 set_ethernet_addr drivers/net/usb/rtl8150.c:281 [inline]
 rtl8150_probe+0xea7/0x15b0 drivers/net/usb/rtl8150.c:912
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