Hello,
syzbot found the following crash on:
HEAD commit: e96407b4 usb-fuzzer: main usb gadget fuzzer driver
git tree: https://github.com/google/kasan.git usb-fuzzer
console output: https://syzkaller.appspot.com/x/log.txt?x=10809e0c600000
kernel config: https://syzkaller.appspot.com/x/.config?x=cfa2c18fb6a8068e
dashboard link: https://syzkaller.appspot.com/bug?extid=5efc10c005014d061a74
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15e40b1a600000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=174a69d8600000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+5efc10c005014d061a74@xxxxxxxxxxxxxxxxxxxxxxxxx
iforce 1-1:0.225: usb_submit_urb failed: -71
iforce 1-1:0.225: usb_submit_urb failed: -71
iforce 1-1:0.225: usb_submit_urb failed: -71
iforce 1-1:0.225: usb_submit_urb failed: -71
------------[ cut here ]------------
usb 1-1: BOGUS urb xfer, pipe 1 != type 3
WARNING: CPU: 1 PID: 22 at drivers/usb/core/urb.c:477
usb_submit_urb+0x1188/0x13b0 drivers/usb/core/urb.c:477
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.3.0-rc2+ #25
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+0xca/0x13e lib/dump_stack.c:113
panic+0x2a3/0x6da kernel/panic.c:219
__warn.cold+0x20/0x4a kernel/panic.c:576
report_bug+0x262/0x2a0 lib/bug.c:186
fixup_bug arch/x86/kernel/traps.c:179 [inline]
fixup_bug arch/x86/kernel/traps.c:174 [inline]
do_error_trap+0x12b/0x1e0 arch/x86/kernel/traps.c:272
do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:291
invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1026
RIP: 0010:usb_submit_urb+0x1188/0x13b0 drivers/usb/core/urb.c:477
Code: 4d 85 ed 74 2c e8 28 76 ed fd 4c 89 f7 e8 c0 6d 1a ff 41 89 d8 44 89
e1 4c 89 ea 48 89 c6 48 c7 c7 60 e7 18 86 e8 3d 47 c3 fd <0f> 0b e9 20 f4
ff ff e8 fc 75 ed fd 4c 89 f2 48 b8 00 00 00 00 00
RSP: 0018:ffff8881da34f048 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8128a0fd RDI: ffffed103b469dfb
RBP: ffff8881d598fd50 R08: ffff8881da340000 R09: ffffed103b663ee7
R10: ffffed103b663ee6 R11: ffff8881db31f737 R12: 0000000000000001
R13: ffff8881cda8d720 R14: ffff8881d67d22a0 R15: ffff8881d598f900
__iforce_usb_xmit+0x31a/0x490 drivers/input/joystick/iforce/iforce-usb.c:60
iforce_usb_xmit+0x49/0x50 drivers/input/joystick/iforce/iforce-usb.c:75
iforce_send_packet+0x277/0x2f0
drivers/input/joystick/iforce/iforce-packets.c:81
iforce_set_autocenter+0x9e/0x100
drivers/input/joystick/iforce/iforce-main.c:95
iforce_init_device+0x7db/0x13d7
drivers/input/joystick/iforce/iforce-main.c:314
iforce_usb_probe+0x757/0xab0 drivers/input/joystick/iforce/iforce-usb.c:233
usb_probe_interface+0x305/0x7a0 drivers/usb/core/driver.c:361
really_probe+0x281/0x650 drivers/base/dd.c:548
driver_probe_device+0x101/0x1b0 drivers/base/dd.c:709
__device_attach_driver+0x1c2/0x220 drivers/base/dd.c:816
bus_for_each_drv+0x15c/0x1e0 drivers/base/bus.c:454
__device_attach+0x217/0x360 drivers/base/dd.c:882
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:514
device_add+0xae6/0x16f0 drivers/base/core.c:2114
usb_set_configuration+0xdf6/0x1670 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+0x281/0x650 drivers/base/dd.c:548
driver_probe_device+0x101/0x1b0 drivers/base/dd.c:709
__device_attach_driver+0x1c2/0x220 drivers/base/dd.c:816
bus_for_each_drv+0x15c/0x1e0 drivers/base/bus.c:454
__device_attach+0x217/0x360 drivers/base/dd.c:882
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:514
device_add+0xae6/0x16f0 drivers/base/core.c:2114
usb_new_device.cold+0x6a4/0xe79 drivers/usb/core/hub.c:2536
hub_port_connect drivers/usb/core/hub.c:5098 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5213 [inline]
port_event drivers/usb/core/hub.c:5359 [inline]
hub_event+0x1b5c/0x3640 drivers/usb/core/hub.c:5441
process_one_work+0x92b/0x1530 kernel/workqueue.c:2269
worker_thread+0x96/0xe20 kernel/workqueue.c:2415
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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