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[Bug 1911216] Re: abort issue locates in hw/usb/hcd-ohci.c:1297:ohci_fra
From: |
Alexander Bulekov |
Subject: |
[Bug 1911216] Re: abort issue locates in hw/usb/hcd-ohci.c:1297:ohci_frame_boundary |
Date: |
Tue, 15 Jun 2021 00:02:57 -0000 |
OSS-Fuzz still has a functioning reproducer. I'll copy this one over to
gitlab
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https://bugs.launchpad.net/bugs/1911216
Title:
abort issue locates in hw/usb/hcd-ohci.c:1297:ohci_frame_boundary
Status in QEMU:
Incomplete
Bug description:
Hello,
I found an assertion failure in hw/usb/hcd-ohci.c:1297
This was found in latest version 5.2.0.
my reproduced environment is as follows:
Host: ubuntu 18.04
Guest: ubuntu 18.04
QEMU boot command line:
qemu-system-x86_64 -enable-kvm -boot c -m 4G -drive
format=qcow2,file=./ubuntu.img -nic user,hostfwd=tcp:0.0.0.0:5555-:22 -display
none -device pci-ohci,id=ohci -device usb-tablet,bus=ohci.0,port=1,id=usbdev1
backtrace is as follows
pwndbg> bt
#0 0x00007fdf392aa438 in __GI_raise (sig=sig@entry=6) at
../sysdeps/unix/sysv/linux/raise.c:54
#1 0x00007fdf392ac03a in __GI_abort () at abort.c:89
#2 0x000055c613721118 in ohci_frame_boundary (opaque=0x6270000191f0) at
hw/usb/hcd-ohci.c:1297
#3 0x000055c6140bdf0e in timerlist_run_timers (timer_list=0x60b00005bcc0) at
util/qemu-timer.c:572
#4 0x000055c6140be15a in qemu_clock_run_timers (type=QEMU_CLOCK_VIRTUAL) at
util/qemu-timer.c:586
#5 0x000055c6140beac7 in qemu_clock_run_all_timers () at
util/qemu-timer.c:672
#6 0x000055c6140a1938 in main_loop_wait (nonblocking=0) at
util/main-loop.c:523
#7 0x000055c6125d87e9 in qemu_main_loop () at
/home/dell/qemu5-hypervisor/vm/fuzz-seedpool/hcd-ohci/qemu-5.1.0/softmmu/vl.c:1676
#8 0x000055c613f216ea in main (argc=7, argv=0x7fff174cdd28,
envp=0x7fff174cdd68) at
/home/dell/qemu5-hypervisor/vm/fuzz-seedpool/hcd-ohci/qemu-5.1.0/softmmu/main.c:49
#9 0x00007fdf39295840 in __libc_start_main (main=0x55c613f21699 <main>,
argc=7, argv=0x7fff174cdd28, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7fff174cdd18) at ../csu/libc-start.c:291
#10 0x000055c6120a4349 in _start ()
The poc is attached.
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- [Bug 1911216] Re: abort issue locates in hw/usb/hcd-ohci.c:1297:ohci_frame_boundary,
Alexander Bulekov <=