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From: syzbot <syzbot+ce3408364c4a234dd90c@syzkaller.appspotmail.com>
To: aldas60@gmail.com, dave@stgolabs.net, gregkh@linuxfoundation.org,
	 keescook@chromium.org, linux-kernel@vger.kernel.org,
	 linux-staging@lists.linux.dev, linux-usb@vger.kernel.org,
	nathan@kernel.org,  syzkaller-bugs@googlegroups.com
Subject: [syzbot] WARNING: locking bug in hfa384x_usbctlx_completion_task
Date: Sun, 26 Jun 2022 14:33:28 -0700	[thread overview]
Message-ID: <000000000000e3fc8905e2608d4f@google.com> (raw)

Hello,

syzbot found the following issue on:

HEAD commit:    105f3fd2f789 Merge branch 'staging-octeon' of gitolite.ker..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
console output: https://syzkaller.appspot.com/x/log.txt?x=129a824bf00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=a352a56bc8822d0c
dashboard link: https://syzkaller.appspot.com/bug?extid=ce3408364c4a234dd90c
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10a97af8080000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1031ec4bf00000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ce3408364c4a234dd90c@syzkaller.appspotmail.com

------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 1 PID: 21 at kernel/locking/lockdep.c:231 hlock_class kernel/locking/lockdep.c:231 [inline]
WARNING: CPU: 1 PID: 21 at kernel/locking/lockdep.c:231 hlock_class kernel/locking/lockdep.c:220 [inline]
WARNING: CPU: 1 PID: 21 at kernel/locking/lockdep.c:231 check_wait_context kernel/locking/lockdep.c:4727 [inline]
WARNING: CPU: 1 PID: 21 at kernel/locking/lockdep.c:231 __lock_acquire+0x1356/0x5660 kernel/locking/lockdep.c:5003
Modules linked in:
CPU: 1 PID: 21 Comm: kworker/1:0 Not tainted 5.19.0-rc3-syzkaller-00071-g105f3fd2f789 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events hfa384x_usbctlx_completion_task
RIP: 0010:hlock_class kernel/locking/lockdep.c:231 [inline]
RIP: 0010:hlock_class kernel/locking/lockdep.c:220 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4727 [inline]
RIP: 0010:__lock_acquire+0x1356/0x5660 kernel/locking/lockdep.c:5003
Code: 08 84 d2 0f 85 0e 30 00 00 8b 35 7d ec b3 07 85 f6 0f 85 f4 fd ff ff 48 c7 c6 e0 97 47 86 48 c7 c7 20 92 47 86 e8 9a 5b 96 04 <0f> 0b 31 ed e9 aa f0 ff ff e8 fc f1 e8 00 85 c0 0f 84 12 fe ff ff
RSP: 0018:ffffc9000016fa28 EFLAGS: 00010082
RAX: 0000000000000000 RBX: ffff888109450be0 RCX: 0000000000000000
RDX: ffff888100371c80 RSI: ffffffff812c1d98 RDI: fffff5200002df37
RBP: 0000000000000edc R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000001 R11: 0000000000000001 R12: ffff8881003726c8
R13: ffff888100371c80 R14: 0000000000040000 R15: 00000000000c0edc
FS:  0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055fb59fac7c0 CR3: 0000000109e53000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire kernel/locking/lockdep.c:5665 [inline]
 lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162
 hfa384x_usbctlx_completion_task+0x35/0x510 drivers/staging/wlan-ng/hfa384x_usb.c:2641
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2ef/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
 </TASK>


---
This report 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@googlegroups.com.

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches

             reply	other threads:[~2022-06-26 21:33 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-26 21:33 syzbot [this message]
     [not found] ` <20220627105336.990-1-hdanton@sina.com>
2022-06-27 11:12   ` [syzbot] WARNING: locking bug in hfa384x_usbctlx_completion_task syzbot
2022-06-27 11:24   ` Dan Carpenter
2022-06-27 17:08 ` Davidlohr Bueso
2022-06-29  9:06   ` Greg KH
2022-06-29 16:52 ` [PATCH] staging/wlan-ng: get the correct struct hfa384x in work callback Davidlohr Bueso

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