sierra_net 1-1:0.11 wwan0: register 'sierra_net' at usb-dummy_hcd.0-1, Sierra Wireless USB-to-WWAN Modem, 00:00:00:00:01:0b ------------[ cut here ]------------ WARNING: drivers/net/usb/usbnet.c:266 at usbnet_status_start+0x108/0x1d0 drivers/net/usb/usbnet.c:266, CPU#0: kworker/0:2/850 Modules linked in: CPU: 0 UID: 0 PID: 850 Comm: kworker/0:2 Not tainted 6.16.0-rc5-next-20250710-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: usb_hub_wq hub_event RIP: 0010:usbnet_status_start+0x108/0x1d0 drivers/net/usb/usbnet.c:266 Code: c6 66 90 e8 6a 99 a9 fa 48 8b 7c 24 08 e8 90 57 6b 04 44 89 f0 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d e9 4a d2 6c 04 cc 90 <0f> 0b 90 41 80 3c 2c 00 74 08 4c 89 f7 e8 96 4e 0e fb 49 83 3e 00 RSP: 0018:ffffc90003336da0 EFLAGS: 00010246 RAX: ffffffff87166c37 RBX: ffff888032e40d80 RCX: ffff8880250e3c00 RDX: 0000000000000000 RSI: 0000000000000cc0 RDI: ffff888032e40d80 RBP: dffffc0000000000 R08: ffff888032e400af R09: 1ffff110065c8015 R10: dffffc0000000000 R11: ffffed10065c8016 R12: 1ffff110065c821e R13: 0000000000000000 R14: ffff888032e410f0 R15: 0000000000000cc0 FS: 0000000000000000(0000) GS:ffff888125798000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d64d01d8f0 CR3: 000000007320e000 CR4: 00000000003526f0 Call Trace: sierra_net_probe+0x6a/0xa0 drivers/net/usb/sierra_net.c:929 usb_probe_interface+0x637/0xbf0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x26a/0x9e0 drivers/base/dd.c:659 __driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:801 driver_probe_device+0x4f/0x430 drivers/base/dd.c:831 __device_attach_driver+0x2ce/0x530 drivers/base/dd.c:959 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:462 __device_attach+0x2b8/0x400 drivers/base/dd.c:1031 bus_probe_device+0x185/0x260 drivers/base/bus.c:537 device_add+0x7b6/0xb50 drivers/base/core.c:3689 usb_set_configuration+0x1a87/0x20e0 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250 usb_probe_device+0x1c1/0x390 drivers/usb/core/driver.c:291 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x26a/0x9e0 drivers/base/dd.c:659 __driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:801 driver_probe_device+0x4f/0x430 drivers/base/dd.c:831 __device_attach_driver+0x2ce/0x530 drivers/base/dd.c:959 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:462 __device_attach+0x2b8/0x400 drivers/base/dd.c:1031 bus_probe_device+0x185/0x260 drivers/base/bus.c:537 device_add+0x7b6/0xb50 drivers/base/core.c:3689 usb_new_device+0xa39/0x16f0 drivers/usb/core/hub.c:2694 hub_port_connect drivers/usb/core/hub.c:5566 [inline] hub_port_connect_change drivers/usb/core/hub.c:5706 [inline] port_event drivers/usb/core/hub.c:5866 [inline] hub_event+0x2941/0x4a00 drivers/usb/core/hub.c:5948 process_one_work kernel/workqueue.c:3239 [inline] process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3322 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3403 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245