Hello,
syzbot found the following crash on:
HEAD commit: ecdf2214 usb: gadget: add raw-gadget interface
git tree: https://github.com/google/kasan.git usb-fuzzer
console output: https://syzkaller.appspot.com/x/log.txt?x=1727e059e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=b06a019075333661
dashboard link: https://syzkaller.appspot.com/bug?extid=e7687d3c762f267e48f7
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17e6d885e00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=178b549ee00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+e7687d3c762f267e48f7@xxxxxxxxxxxxxxxxxxxxxxxxx
usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 1-1: config 0 descriptor??
------------[ cut here ]------------
URB 000000007bfb3747 submitted while active
WARNING: CPU: 1 PID: 22 at drivers/usb/core/urb.c:363
usb_submit_urb+0x10c1/0x13b0 drivers/usb/core/urb.c:363
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.5.0-rc2-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+0xef/0x16e lib/dump_stack.c:118
panic+0x2aa/0x6e1 kernel/panic.c:221
__warn.cold+0x2f/0x30 kernel/panic.c:582
report_bug+0x27b/0x2f0 lib/bug.c:195
fixup_bug arch/x86/kernel/traps.c:174 [inline]
fixup_bug arch/x86/kernel/traps.c:169 [inline]
do_error_trap+0x12b/0x1e0 arch/x86/kernel/traps.c:267
do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286
invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027
RIP: 0010:usb_submit_urb+0x10c1/0x13b0 drivers/usb/core/urb.c:363
Code: 89 de e8 72 92 e7 fd 84 db 0f 85 42 f6 ff ff e8 35 91 e7 fd 4c 89 fe
48 c7 c7 00 59 15 86 c6 05 20 c3 4e 04 01 e8 e7 ad bc fd <0f> 0b e9 20 f6
ff ff c7 44 24 14 01 00 00 00 e9 d7 f6 ff ff 41 bd
RSP: 0018:ffff8881d8c370e0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff81295dad RDI: ffffed103b186e0e
RBP: ffff8881d32c5f80 R08: ffff8881da24e200 R09: ffffed103b66439f
R10: ffffed103b66439e R11: ffff8881db321cf3 R12: ffff8881d5aabb00
R13: 00000000fffffff0 R14: ffff8881d2037448 R15: ffff8881d5aab800
port100_send_frame_async drivers/nfc/port100.c:780 [inline]
port100_send_cmd_async+0x801/0xb80 drivers/nfc/port100.c:876
port100_send_cmd_sync+0xaa/0x130 drivers/nfc/port100.c:916
port100_set_command_type drivers/nfc/port100.c:987 [inline]
port100_probe+0xa12/0xea0 drivers/nfc/port100.c:1567
usb_probe_interface+0x305/0x7a0 drivers/usb/core/driver.c:361
really_probe+0x281/0x6d0 drivers/base/dd.c:548
driver_probe_device+0x104/0x210 drivers/base/dd.c:721
__device_attach_driver+0x1c2/0x220 drivers/base/dd.c:828
bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:430
__device_attach+0x217/0x360 drivers/base/dd.c:894
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:490
device_add+0x1480/0x1c20 drivers/base/core.c:2487
usb_set_configuration+0xe67/0x1740 drivers/usb/core/message.c:2023
generic_probe+0x9d/0xd5 drivers/usb/core/generic.c:210
usb_probe_device+0x99/0x100 drivers/usb/core/driver.c:266
really_probe+0x281/0x6d0 drivers/base/dd.c:548
driver_probe_device+0x104/0x210 drivers/base/dd.c:721
__device_attach_driver+0x1c2/0x220 drivers/base/dd.c:828
bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:430
__device_attach+0x217/0x360 drivers/base/dd.c:894
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:490
device_add+0x1480/0x1c20 drivers/base/core.c:2487
usb_new_device.cold+0x6a4/0xe79 drivers/usb/core/hub.c:2537
hub_port_connect drivers/usb/core/hub.c:5184 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5324 [inline]
port_event drivers/usb/core/hub.c:5470 [inline]
hub_event+0x1e59/0x3860 drivers/usb/core/hub.c:5552
process_one_work+0x92b/0x1530 kernel/workqueue.c:2264
worker_thread+0x96/0xe20 kernel/workqueue.c:2410
kthread+0x318/0x420 kernel/kthread.c:255
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Kernel Offset: disabled
Rebooting in 86400 seconds..
---
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