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Date:   Thu, 26 Nov 2020 09:17:15 -0800
From:   syzbot <syzbot+c7e665956b189738fe5e@...kaller.appspotmail.com>
To:     eli.billauer@...il.com, gregkh@...uxfoundation.org,
        gustavoars@...nel.org, ingrassia@...genesys.com,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        oneukum@...e.com, syzkaller-bugs@...glegroups.com, tiwai@...e.de
Subject: Re: WARNING in cm109_submit_buzz_toggle/usb_submit_urb

syzbot has found a reproducer for the following issue on:

HEAD commit:    fa02fcd9 Merge tag 'media/v5.10-2' of git://git.kernel.org..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=16d1a88d500000
kernel config:  https://syzkaller.appspot.com/x/.config?x=cb8d1a3819ba4356
dashboard link: https://syzkaller.appspot.com/bug?extid=c7e665956b189738fe5e
compiler:       gcc (GCC) 10.1.0-syz 20200507
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14ba912d500000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10dfad85500000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+c7e665956b189738fe5e@...kaller.appspotmail.com

------------[ cut here ]------------
URB 0000000056bd5df7 submitted while active
WARNING: CPU: 0 PID: 8490 at drivers/usb/core/urb.c:378 usb_submit_urb+0x1228/0x14e0 drivers/usb/core/urb.c:378
Modules linked in:
CPU: 0 PID: 8490 Comm: syz-executor949 Not tainted 5.10.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:usb_submit_urb+0x1228/0x14e0 drivers/usb/core/urb.c:378
Code: 89 de e8 6b d6 3b fc 84 db 0f 85 da f4 ff ff e8 4e de 3b fc 4c 89 fe 48 c7 c7 00 57 e1 89 c6 05 01 64 a4 07 01 e8 d4 0c 78 03 <0f> 0b e9 b8 f4 ff ff c7 44 24 14 01 00 00 00 e9 6f f5 ff ff 41 bd
RSP: 0018:ffffc900012ef710 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88802068b480 RSI: ffffffff8158d875 RDI: fffff5200025ded4
RBP: 0000000000000020 R08: 0000000000000001 R09: ffff8880b9e2011b
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880117c3078
R13: 00000000fffffff0 R14: ffffffff85a190a0 R15: ffff88801d38cd00
FS:  0000000001949880(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005637666ec160 CR3: 0000000029267000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 cm109_submit_buzz_toggle+0xd0/0x130 drivers/input/misc/cm109.c:351
 cm109_toggle_buzzer_async drivers/input/misc/cm109.c:487 [inline]
 cm109_input_ev+0x1ea/0x230 drivers/input/misc/cm109.c:621
 input_handle_event+0x66e/0x1400 drivers/input/input.c:376
 input_inject_event+0x2f5/0x310 drivers/input/input.c:471
 kd_sound_helper+0x122/0x260 drivers/tty/vt/keyboard.c:242
 input_handler_for_each_handle+0xf4/0x210 drivers/input/input.c:2356
 kd_mksound+0x85/0x120 drivers/tty/vt/keyboard.c:266
 do_con_trol+0x813/0x54c0 drivers/tty/vt/vt.c:2152
 do_con_write+0xb89/0x1dd0 drivers/tty/vt/vt.c:2911
 con_write+0x22/0xb0 drivers/tty/vt/vt.c:3255
 process_output_block drivers/tty/n_tty.c:595 [inline]
 n_tty_write+0x3ce/0xf80 drivers/tty/n_tty.c:2333
 do_tty_write drivers/tty/tty_io.c:962 [inline]
 tty_write+0x4d9/0x870 drivers/tty/tty_io.c:1046
 vfs_write+0x28e/0xa30 fs/read_write.c:603
 ksys_write+0x12d/0x250 fs/read_write.c:658
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x444859
Code: e8 bc af 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 9b d7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffd082c1508 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 0000000000444859
RDX: 0000000000001006 RSI: 0000000020001440 RDI: 0000000000000005
RBP: 00000000006d0018 R08: 00000000004002e0 R09: 00000000004002e0
R10: 000000000000000d R11: 0000000000000246 R12: 0000000000402480
R13: 0000000000402510 R14: 0000000000000000 R15: 0000000000000000

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