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Date: Mon, 12 Feb 2024 10:51:26 -0800
Message-ID: <000000000000d23cfc061133c3ae@google.com>
Subject: [syzbot] [usb?] WARNING in wdm_rxwork/usb_submit_urb (2)
From: syzbot <syzbot+c6a1953c27ace6cc34e5@syzkaller.appspotmail.com>
To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, 
	linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.com
Content-Type: text/plain; charset="UTF-8"

Hello,

syzbot found the following issue on:

HEAD commit:    841c35169323 Linux 6.8-rc4
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=108afb04180000
kernel config:  https://syzkaller.appspot.com/x/.config?x=1d7c92dd8d5c7a1e
dashboard link: https://syzkaller.appspot.com/bug?extid=c6a1953c27ace6cc34e5
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/38e234de95d9/disk-841c3516.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/b6bebb81917b/vmlinux-841c3516.xz
kernel image: https://storage.googleapis.com/syzbot-assets/3b5bf5ac63c3/bzImage-841c3516.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+c6a1953c27ace6cc34e5@syzkaller.appspotmail.com

------------[ cut here ]------------
URB ffff88802d18b550 submitted while active
WARNING: CPU: 1 PID: 16572 at drivers/usb/core/urb.c:379 usb_submit_urb+0x1039/0x18c0 drivers/usb/core/urb.c:379
Modules linked in:
CPU: 1 PID: 16572 Comm: kworker/1:0 Not tainted 6.8.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Workqueue: events wdm_rxwork
RIP: 0010:usb_submit_urb+0x1039/0x18c0 drivers/usb/core/urb.c:379
Code: 00 eb 66 e8 59 f7 8e fa e9 79 f0 ff ff e8 4f f7 8e fa c6 05 25 9f 6b 08 01 90 48 c7 c7 c0 ae 4a 8c 4c 89 ee e8 f8 01 53 fa 90 <0f> 0b 90 90 e9 40 f0 ff ff e8 29 f7 8e fa eb 12 e8 22 f7 8e fa 41
RSP: 0018:ffffc90004b4fb20 EFLAGS: 00010246
RAX: e7c54bd420f7c300 RBX: 0000000000000cc0 RCX: ffff888039421dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88802d18b558 R08: ffffffff81577992 R09: 1ffff92000969eb8
R10: dffffc0000000000 R11: fffff52000969eb9 R12: 1ffff11005523912
R13: ffff88802d18b550 R14: dffffc0000000000 R15: ffff88802a91c828
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555d4f938 CR3: 000000000df32000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 wdm_rxwork+0x116/0x1f0 drivers/usb/class/cdc-wdm.c:989
 process_one_work kernel/workqueue.c:2633 [inline]
 process_scheduled_works+0x913/0x1420 kernel/workqueue.c:2706
 worker_thread+0xa5f/0x1000 kernel/workqueue.c:2787
 kthread+0x2ef/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242
 </TASK>


---
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