Ok, thanks for checking! So seems like this has been fixed, thus I'm
closing the bug. If it happens again, please open a new ticket in our
new gitlab issue tracker.
** Changed in: qemu
Status: Incomplete => Fix Released
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OSS-Fuzz never picked up on this one, so I'm guessing it was fixed sometime
between 5.1 and 5.2.
Not a fun section to bisect, but looks like it was fixed by 21bc31524e ("hw:
xhci: check return value of 'usb_packet_map'")
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Can you still reproduce this assert with QEMU v6.0 ? For me, it does not
seem to run into the assert() anymore, so I assume this has been fixed
within the last months?
** Changed in: qemu
Status: New => Incomplete
** Tags added: fuzzer usb
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Here's a qtest reproducer:
cat << EOF | ./i386-softmmu/qemu-system-i386 \
-device nec-usb-xhci -trace usb\* \
-device usb-audio -device usb-storage,drive=mydrive \
-drive id=mydrive,file=null-co://,size=2M,format=raw,if=none \
-nodefaults -nographic -qtest stdio
outl 0xcf8 0x80001016
outl 0xcfc
** Tags added: testcase
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https://bugs.launchpad.net/bugs/1883728
Title:
address_space_unmap: Assertion `mr != NULL' failed.
Status in QEMU:
New
Bug description:
To reproduce run
