OSS-Fuzz still has a functioning reproducer. I'll copy this one over to gitlab
-- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. 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. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1911216/+subscriptions
