From: syzbot <syzbot+37ba33391ad5f3935bbd@syzkaller.appspotmail.com>
To: andreyknvl@google.com, gregkh@linuxfoundation.org,
johan@kernel.org, linux-kernel@vger.kernel.org,
linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: KASAN: slab-out-of-bounds Read in edge_interrupt_callback
Date: Mon, 23 Mar 2020 05:40:14 -0700 [thread overview]
Message-ID: <000000000000ce3eed05a184efe9@google.com> (raw)
Hello,
syzbot found the following crash on:
HEAD commit: e17994d1 usb: core: kcov: collect coverage from usb comple..
git tree: https://github.com/google/kasan.git usb-fuzzer
console output: https://syzkaller.appspot.com/x/log.txt?x=13706939e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=5d64370c438bc60
dashboard link: https://syzkaller.appspot.com/bug?extid=37ba33391ad5f3935bbd
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=150d3841e00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12842b19e00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+37ba33391ad5f3935bbd@syzkaller.appspotmail.com
==================================================================
BUG: KASAN: slab-out-of-bounds in edge_interrupt_callback+0x8be/0x9d0 drivers/usb/serial/io_edgeport.c:715
Read of size 1 at addr ffff8881d2920c67 by task swapper/0/0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.6.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0xef/0x16e lib/dump_stack.c:118
print_address_description.constprop.0.cold+0xd3/0x314 mm/kasan/report.c:374
__kasan_report.cold+0x37/0x77 mm/kasan/report.c:506
kasan_report+0xe/0x20 mm/kasan/common.c:641
edge_interrupt_callback+0x8be/0x9d0 drivers/usb/serial/io_edgeport.c:715
__usb_hcd_giveback_urb+0x29a/0x550 drivers/usb/core/hcd.c:1650
usb_hcd_giveback_urb+0x368/0x420 drivers/usb/core/hcd.c:1716
dummy_timer+0x1258/0x32ae drivers/usb/gadget/udc/dummy_hcd.c:1966
call_timer_fn+0x195/0x6f0 kernel/time/timer.c:1404
---
This bug 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 bug report. See:
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syzbot can test patches for this bug, for details see:
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next reply other threads:[~2020-03-23 12:40 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-23 12:40 syzbot [this message]
2020-03-25 7:26 ` KASAN: slab-out-of-bounds Read in edge_interrupt_callback Qiujun Huang
2020-03-25 7:44 ` syzbot
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