Hello,
syzbot found the following crash on:
HEAD commit: d60bbfea usb: raw: add raw-gadget interface
git tree: https://github.com/google/kasan.git usb-fuzzer
console output: https://syzkaller.appspot.com/x/log.txt?x=1645164ae00000
kernel config: https://syzkaller.appspot.com/x/.config?x=79de80330003b5f7
dashboard link: https://syzkaller.appspot.com/bug?extid=348331f63b034f89b622
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1687e4aae00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1508a272e00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+348331f63b034f89b622@xxxxxxxxxxxxxxxxxxxxxxxxx
------------[ cut here ]------------
usb 5-1: BOGUS urb xfer, pipe 1 != type 3
WARNING: CPU: 0 PID: 1758 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: 0 PID: 1758 Comm: syz-executor078 Not tainted 5.4.0-rc6+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0xca/0x13e lib/dump_stack.c:113
panic+0x2aa/0x6e1 kernel/panic.c:221
__warn.cold+0x2f/0x33 kernel/panic.c:582
report_bug+0x27b/0x2f0 lib/bug.c:195
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:1028
RIP: 0010:usb_submit_urb+0x1188/0x13b0 drivers/usb/core/urb.c:477
Code: 4d 85 ed 74 2c e8 b8 21 ef fd 4c 89 f7 e8 40 34 1f ff 41 89 d8 44 89
e1 4c 89 ea 48 89 c6 48 c7 c7 40 77 14 86 e8 cd bc c4 fd <0f> 0b e9 20 f4
ff ff e8 8c 21 ef fd 4c 89 f2 48 b8 00 00 00 00 00
RSP: 0018:ffff8881ced9f850 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8128c9cd RDI: ffffed1039db3efc
RBP: ffff8881d03f4800 R08: ffff8881cfa80000 R09: fffffbfff11ab3b5
R10: fffffbfff11ab3b4 R11: ffffffff88d59da7 R12: 0000000000000001
R13: ffff8881caa9c990 R14: ffff8881cfe990a0 R15: ffff8881d52d5900
bcm5974_start_traffic drivers/input/mouse/bcm5974.c:799 [inline]
bcm5974_start_traffic+0xbd/0x170 drivers/input/mouse/bcm5974.c:783
bcm5974_open+0x9f/0x160 drivers/input/mouse/bcm5974.c:839
input_open_device+0x16c/0x2c0 drivers/input/input.c:623
evdev_open_device drivers/input/evdev.c:414 [inline]
evdev_open+0x3fe/0x510 drivers/input/evdev.c:499
chrdev_open+0x219/0x5c0 fs/char_dev.c:414
do_dentry_open+0x494/0x1120 fs/open.c:797
do_last fs/namei.c:3408 [inline]
path_openat+0x1430/0x3ff0 fs/namei.c:3525
do_filp_open+0x1a1/0x280 fs/namei.c:3555
do_sys_open+0x3c0/0x580 fs/open.c:1097
do_syscall_64+0xb7/0x580 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x406781
Code: 75 14 b8 02 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 a4 18 00 00 c3 48
83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 02 00 00 00 0f 05 <48> 8b 3c 24 48
89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007fac82b3e820 EFLAGS: 00000293 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 0000000000406781
RDX: 0000000000000000 RSI: 0000000000000300 RDI: 00007fac82b3e8d0
RBP: 00000000006dcc40 R08: 00007fac82b3e830 R09: 00000000006dcc40
R10: 0000000000000000 R11: 0000000000000293 R12: 00000000006dcc4c
R13: 00007ffea0a0004f R14: 00007fac82b3f9c0 R15: 00000000006dcc40
Kernel Offset: disabled
Rebooting in 86400 seconds..
---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx.
syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot can test patches for this bug, for details see:
https://goo.gl/tpsmEJ#testing-patches
