Hello,
syzbot found the following crash on:
HEAD commit: 5a67532c 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=16e4bb25e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=9ba75825443d54bd
dashboard link: https://syzkaller.appspot.com/bug?extid=db339689b2101f6f6071
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+db339689b2101f6f6071@xxxxxxxxxxxxxxxxxxxxxxxxx
------------[ cut here ]------------
usb 3-1: BOGUS urb xfer, pipe 2 != type 2
WARNING: CPU: 0 PID: 23154 at drivers/usb/core/urb.c:478
usb_submit_urb+0x1188/0x1460 drivers/usb/core/urb.c:478
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 23154 Comm: syz-executor.2 Not tainted 5.5.0-rc6-syzkaller #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+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+0x1188/0x1460 drivers/usb/core/urb.c:478
Code: 4d 85 ed 74 46 e8 a8 1c e1 fd 4c 89 f7 e8 90 87 17 ff 41 89 d8 44 89
e1 4c 89 ea 48 89 c6 48 c7 c7 60 27 3b 86 e8 30 03 b6 fd <0f> 0b e9 20 f4
ff ff e8 7c 1c e1 fd 0f 1f 44 00 00 e8 72 1c e1 fd
RSP: 0018:ffff8881d4227b18 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000000
RDX: 0000000000004c45 RSI: ffffffff8129598d RDI: ffffed103a844f55
RBP: 0000000000000000 R08: ffff8881cdc30000 R09: fffffbfff1269cb7
R10: fffffbfff1269cb6 R11: ffffffff8934e5b7 R12: 0000000000000002
R13: ffff8881caf26ab0 R14: ffff8881d40040a0 R15: ffff8881c6936d00
usb_start_wait_urb+0x108/0x4c0 drivers/usb/core/message.c:57
usb_internal_control_msg drivers/usb/core/message.c:101 [inline]
usb_control_msg+0x31c/0x4a0 drivers/usb/core/message.c:152
usbhid_set_raw_report drivers/hid/usbhid/hid-core.c:917 [inline]
usbhid_raw_request+0x21f/0x640 drivers/hid/usbhid/hid-core.c:1265
hid_hw_raw_request include/linux/hid.h:1079 [inline]
hidraw_send_report+0x296/0x500 drivers/hid/hidraw.c:151
hidraw_write+0x34/0x50 drivers/hid/hidraw.c:164
__vfs_write+0x76/0x100 fs/read_write.c:494
vfs_write+0x262/0x5c0 fs/read_write.c:558
ksys_write+0x127/0x250 fs/read_write.c:611
do_syscall_64+0xb6/0x5a0 arch/x86/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45af49
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7
48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff
ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f0d8bc69c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045af49
RDX: 000000000000000b RSI: 00000000200000c0 RDI: 0000000000000006
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0d8bc6a6d4
R13: 00000000004ccfde R14: 00000000004e8570 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..
---
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