From: syzbot <syzbot+7bf5a7b0f0a1f9446f4c@syzkaller.appspotmail.com>
To: andreyknvl@google.com, gregkh@linuxfoundation.org,
ingrassia@epigenesys.com, linux-kernel@vger.kernel.org,
linux-usb@vger.kernel.org, stern@rowland.harvard.edu,
syzkaller-bugs@googlegroups.com
Subject: Re: KASAN: use-after-free Read in usbhid_close (3)
Date: Sat, 18 Apr 2020 12:52:03 -0700 [thread overview]
Message-ID: <000000000000f8e27205a395ff6e@google.com> (raw)
In-Reply-To: <Pine.LNX.4.44L0.2004181530500.8036-100000@netrider.rowland.org>
Hello,
syzbot has tested the proposed patch but the reproducer still triggered crash:
WARNING in usbhid_stop
usb 6-1: USB disconnect, device number 2
usbhid 6-1:0.0: Stop: 0 0 0
------------[ cut here ]------------
usbhid 6-1:0.0: Stop while open = 1
WARNING: CPU: 1 PID: 17 at drivers/hid/usbhid/hid-core.c:1205 usbhid_stop.cold+0x1c7/0x5a6 drivers/hid/usbhid/hid-core.c:1205
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.6.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
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:usbhid_stop.cold+0x1c7/0x5a6 drivers/hid/usbhid/hid-core.c:1205
Code: 48 89 7c 24 08 e8 9f 5e bd fc 48 8b 7c 24 08 e8 c5 2e f7 fd 48 8b 14 24 44 89 f9 48 c7 c7 20 4b 84 86 48 89 c6 e8 47 ef 91 fc <0f> 0b e8 78 5e bd fc 48 8d bb ac 1e 00 00 b8 ff ff 37 00 48 89 fa
RSP: 0018:ffff8881da267640 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff8881cd788000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff812974dd RDI: ffffed103b44ceba
RBP: ffff8881cd22c000 R08: ffff8881da24b100 R09: ffffed103b66439f
R10: ffffed103b66439e R11: ffff8881db321cf3 R12: ffff8881cd789fd8
R13: ffff8881cd22c008 R14: ffff8881d6c41000 R15: 0000000000000001
wacom_remove+0x88/0x3b0 drivers/hid/wacom_sys.c:2773
hid_device_remove+0xed/0x240 drivers/hid/hid-core.c:2296
__device_release_driver drivers/base/dd.c:1135 [inline]
device_release_driver_internal+0x231/0x500 drivers/base/dd.c:1168
bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:533
device_del+0x481/0xd30 drivers/base/core.c:2677
hid_remove_device drivers/hid/hid-core.c:2467 [inline]
hid_destroy_device+0xe1/0x150 drivers/hid/hid-core.c:2486
usbhid_disconnect+0x9f/0xe0 drivers/hid/usbhid/hid-core.c:1420
usb_unbind_interface+0x1bd/0x8a0 drivers/usb/core/driver.c:436
__device_release_driver drivers/base/dd.c:1137 [inline]
device_release_driver_internal+0x42f/0x500 drivers/base/dd.c:1168
bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:533
device_del+0x481/0xd30 drivers/base/core.c:2677
usb_disable_device+0x23d/0x790 drivers/usb/core/message.c:1238
usb_disconnect+0x293/0x900 drivers/usb/core/hub.c:2211
hub_port_connect drivers/usb/core/hub.c:5046 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5335 [inline]
port_event drivers/usb/core/hub.c:5481 [inline]
hub_event+0x1a1d/0x4300 drivers/usb/core/hub.c:5563
process_one_work+0x94b/0x1620 kernel/workqueue.c:2266
worker_thread+0x96/0xe20 kernel/workqueue.c:2412
kthread+0x318/0x420 kernel/kthread.c:255
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Kernel Offset: disabled
Rebooting in 86400 seconds..
Tested on:
commit: 0fa84af8 Merge tag 'usb-serial-5.7-rc1' of https://git.ker..
git tree: https://github.com/google/kasan.git
console output: https://syzkaller.appspot.com/x/log.txt?x=165078f7e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=6b9c154b0c23aecf
dashboard link: https://syzkaller.appspot.com/bug?extid=7bf5a7b0f0a1f9446f4c
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
patch: https://syzkaller.appspot.com/x/patch.diff?x=15cef627e00000
next prev parent reply other threads:[~2020-04-18 19:52 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-07 15:26 KASAN: use-after-free Read in usbhid_close (3) syzbot
2020-04-12 16:37 ` syzbot
2020-04-17 19:15 ` Alan Stern
2020-04-17 20:15 ` syzbot
2020-04-18 1:30 ` Alan Stern
2020-04-18 1:41 ` syzbot
2020-04-18 19:39 ` Alan Stern
2020-04-18 19:52 ` syzbot [this message]
2020-04-18 20:20 ` Alan Stern
2020-04-18 20:32 ` syzbot
2020-04-19 1:34 ` Alan Stern
2020-04-19 1:46 ` syzbot
2020-04-19 2:16 ` Alan Stern
2020-04-19 4:09 ` Dmitry Torokhov
2020-04-19 4:13 ` Dmitry Torokhov
2020-04-19 14:07 ` Alan Stern
2020-04-19 17:18 ` Dmitry Torokhov
2020-04-19 22:42 ` Alan Stern
2020-04-22 15:02 ` Alan Stern
2020-04-22 15:21 ` syzbot
2020-04-23 9:59 ` Jiri Kosina
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=000000000000f8e27205a395ff6e@google.com \
--to=syzbot+7bf5a7b0f0a1f9446f4c@syzkaller.appspotmail.com \
--cc=andreyknvl@google.com \
--cc=gregkh@linuxfoundation.org \
--cc=ingrassia@epigenesys.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=stern@rowland.harvard.edu \
--cc=syzkaller-bugs@googlegroups.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.