(unnamed net_device) (uninitialized): read_eprom_word failed ===================================================== BUG: KMSAN: uninit-value in get_interrupt_interval drivers/net/usb/pegasus.c:746 [inline] BUG: KMSAN: uninit-value in pegasus_probe+0x10e7/0x4080 drivers/net/usb/pegasus.c:1152 CPU: 1 PID: 2064 Comm: kworker/1:2 Not tainted 5.12.0-rc6-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:79 [inline] dump_stack+0x24c/0x2e0 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197 get_interrupt_interval drivers/net/usb/pegasus.c:746 [inline] pegasus_probe+0x10e7/0x4080 drivers/net/usb/pegasus.c:1152 usb_probe_interface+0xfcc/0x1520 drivers/usb/core/driver.c:396 really_probe+0xe15/0x24d0 drivers/base/dd.c:561 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431 __device_attach+0x56a/0x890 drivers/base/dd.c:917 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491 device_add+0x2c15/0x31d0 drivers/base/core.c:3242 usb_set_configuration+0x3872/0x3eb0 drivers/usb/core/message.c:2164 usb_generic_driver_probe+0x138/0x300 drivers/usb/core/generic.c:238 usb_probe_device+0x317/0x570 drivers/usb/core/driver.c:293 really_probe+0xe15/0x24d0 drivers/base/dd.c:561 driver_probe_device+0x29d/0x3a0 drivers/base/dd.c:743 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:849 bus_for_each_drv+0x2c8/0x3f0 drivers/base/bus.c:431 __device_attach+0x56a/0x890 drivers/base/dd.c:917 device_initial_probe+0x4a/0x60 drivers/base/dd.c:964 bus_probe_device+0x17e/0x3d0 drivers/base/bus.c:491 device_add+0x2c15/0x31d0 drivers/base/core.c:3242 usb_new_device+0x1bd4/0x2a30 drivers/usb/core/hub.c:2555 hub_port_connect drivers/usb/core/hub.c:5223 [inline] hub_port_connect_change drivers/usb/core/hub.c:5363 [inline] port_event drivers/usb/core/hub.c:5509 [inline] hub_event+0x5b99/0x8870 drivers/usb/core/hub.c:5591 process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275 worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421 kthread+0x521/0x560 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Local variable ----data.i@pegasus_probe created at: get_interrupt_interval drivers/net/usb/pegasus.c:1151 [inline] pegasus_probe+0xe57/0x4080 drivers/net/usb/pegasus.c:1152 get_interrupt_interval drivers/net/usb/pegasus.c:1151 [inline] pegasus_probe+0xe57/0x4080 drivers/net/usb/pegasus.c:1152 ===================================================== pegasus 2-1:0.137: can't reset MAC pegasus: probe of 2-1:0.137 failed with error -5 usb 2-1: USB disconnect, device number 6 usb 2-1: new high-speed USB device number 7 using dummy_hcd usb 2-1: Using ep0 maxpacket: 16 usb 2-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config usb 2-1: config 0 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 usb 2-1: config 0 interface 0 altsetting 0 endpoint 0x2 has invalid wMaxPacketSize 0 usb 2-1: config 0 interface 0 altsetting 0 bulk endpoint 0x2 has invalid maxpacket 0 usb 2-1: config 0 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3 usb 2-1: New USB device found, idVendor=2040, idProduct=b138, bcdDevice= 1.42 usb 2-1: New USB device strings: Mfr=4, Product=0, SerialNumber=0 usb 2-1: Manufacturer: syz usb 2-1: config 0 descriptor?? rc_core: IR keymap rc-hauppauge not found Registered IR keymap rc-empty mceusb 2-1:0.0: Error: mce write submit urb error = -90 mceusb 2-1:0.0: Error: mce write submit urb error = -90 rc rc0: Conexant Hybrid TV (cx231xx) MCE IR no TX (2040:b138) as /devices/platform/dummy_hcd.1/usb2/2-1/2-1:0.0/rc/rc0 input: Conexant Hybrid TV (cx231xx) MCE IR no TX (2040:b138) as /devices/platform/dummy_hcd.1/usb2/2-1/2-1:0.0/rc/rc0/input10 mceusb 2-1:0.0: Error: mce write submit urb error = -90 mceusb 2-1:0.0: Error: mce write submit urb error = -90 mceusb 2-1:0.0: Error: mce write submit urb error = -90 mceusb 2-1:0.0: Error: mce write submit urb error = -90 mceusb 2-1:0.0: Error: mce write submit urb error = -90 mceusb 2-1:0.0: Error: mce write submit urb error = -90 mceusb 2-1:0.0: Error: mce write submit urb error = -90 mceusb 2-1:0.0: Error: mce write submit urb error = -90 mceusb 2-1:0.0: Error: mce write submit urb error = -90 mceusb 2-1:0.0: Error: mce write submit urb error = -90 mceusb 2-1:0.0: Registered ༗꽨剞ڟ with mce emulator interface version 1 mceusb 2-1:0.0: 2 tx ports (0x0 cabled) and 2 rx sensors (0x0 active) usb 2-1: USB disconnect, device number 7 usb 2-1: new high-speed USB device number 8 using dummy_hcd usb 2-1: Using ep0 maxpacket: 16 usb 2-1: unable to read config index 0 descriptor/all usb 2-1: can't read configurations, error -71