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From: syzbot <syzbot+ec5f884c4a135aa0dbb9@syzkaller.appspotmail.com>
To: andreyknvl@google.com, benjamin.tissoires@redhat.com,
	jikos@kernel.org, linux-input@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org,
	stern@rowland.harvard.edu, syzkaller-bugs@googlegroups.com
Subject: Re: INFO: rcu detected stall in hub_event
Date: Mon, 25 Nov 2019 01:38:01 -0800	[thread overview]
Message-ID: <00000000000003b7c305982885e3@google.com> (raw)
In-Reply-To: <Pine.LNX.4.44L0.1911241115410.26037-100000@netrider.rowland.org>

Hello,

syzbot has tested the proposed patch but the reproducer still triggered  
crash:
BUG: found invalid parent_idx

microsoft 0003:045E:07DA.0001: Field 0 ffff8881c0e00000 maxusage 4899
microsoft 0003:045E:07DA.0001: Usage 72 ffff8881c0e00730
microsoft 0003:045E:07DA.0001: collection 0 ffff8881d91be200 type 0 parent 0
microsoft 0003:045E:07DA.0001: BUG: found invalid parent_idx
microsoft 0003:045E:07DA.0001: Start report ffff8881cb82e000 maxfield 1
microsoft 0003:045E:07DA.0001: Field 0 ffff8881c0e00000 maxusage 4899
microsoft 0003:045E:07DA.0001: Usage 72 ffff8881c0e00730
microsoft 0003:045E:07DA.0001: collection 0 ffff8881d91be200 type 0 parent 0
microsoft 0003:045E:07DA.0001: BUG: found invalid parent_idx
microsoft 0003:045E:07DA.0001: No inputs registered, leaving
microsoft 0003:045E:07DA.0001: hidraw0: USB HID v0.00 Device [HID  
045e:07da] on usb-dummy_hcd.5-1/input0
microsoft 0003:045E:07DA.0001: no inputs found
microsoft 0003:045E:07DA.0001: could not initialize ff, continuing anyway
usb 6-1: USB disconnect, device number 3


Tested on:

commit:         46178223 usb: gadget: add raw-gadget interface
git tree:       https://github.com/google/kasan.git
console output: https://syzkaller.appspot.com/x/log.txt?x=14bb93cee00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=99c88c44660624e7
dashboard link: https://syzkaller.appspot.com/bug?extid=ec5f884c4a135aa0dbb9
compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
patch:          https://syzkaller.appspot.com/x/patch.diff?x=11c28d5ee00000


  reply	other threads:[~2019-11-25  9:38 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-21 14:45 INFO: rcu detected stall in hub_event syzbot
2019-11-22 16:51 ` Alan Stern
2019-11-22 21:31   ` Andrey Konovalov
2019-11-25 17:30     ` Alan Stern
2019-12-09 18:26       ` Alan Stern
2019-12-10 21:26         ` [PATCH] HID: Fix slab-out-of-bounds read in hid_field_extract Alan Stern
2019-12-11 14:18           ` Jiri Kosina
2019-12-11 15:10             ` Alan Stern
2019-12-13  8:44               ` Jiri Kosina
2024-04-08 16:55         ` INFO: rcu detected stall in hub_event Alan Stern
2019-11-23 20:20   ` syzbot
2019-11-24 16:17     ` Alan Stern
2019-11-25  9:38       ` syzbot [this message]
2019-11-25 21:24         ` Alan Stern
2019-11-26  7:48           ` Jiri Kosina
2019-11-26 15:18             ` Alan Stern
2019-11-26 20:21           ` syzbot
2022-07-30 10:27 ` [syzbot] " syzbot

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