From: Markus Armbruster <armbru@redhat.com>
To: Alexander Bulekov <alxndr@bu.edu>
Cc: Li Qiang <liq3ea@gmail.com>, Michael Tokarev <mjt@tls.msk.ru>,
John Snow <jsnow@redhat.com>,
QEMU Developers <qemu-devel@nongnu.org>,
qemu-block@nongnu.org
Subject: Re: [PATCH 1/2] floppy: add a regression test for CVE-2020-25741
Date: Fri, 19 Mar 2021 06:53:55 +0100 [thread overview]
Message-ID: <87lfajsn7w.fsf@dusky.pond.sub.org> (raw)
In-Reply-To: <20210319050906.14875-1-alxndr@bu.edu> (Alexander Bulekov's message of "Fri, 19 Mar 2021 01:09:05 -0400")
Alexander Bulekov <alxndr@bu.edu> writes:
> dd if=/dev/zero of=/tmp/fda.img bs=1024 count=1440
> cat << EOF | ./qemu-system-i386 -nographic -m 512M -nodefaults \
> -accel qtest -fda /tmp/fda.img -qtest stdio
> outw 0x3f4 0x0500
> outb 0x3f5 0x00
> outb 0x3f5 0x00
> outw 0x3f4 0x00
> outb 0x3f5 0x00
> outw 0x3f1 0x0400
> outw 0x3f4 0x0
> outw 0x3f4 0x00
> outb 0x3f5 0x0
> outb 0x3f5 0x01
> outw 0x3f1 0x0500
> outb 0x3f5 0x00
> EOF
>
> Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
I guess this is a reproducer. Please also describe actual and expected
result. Same for PATCH 2.
next prev parent reply other threads:[~2021-03-19 5:54 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-27 11:38 [PATCH] fdc: check null block pointer before blk_pwrite P J P
2020-09-15 12:47 ` P J P
2020-09-18 10:52 ` Li Qiang
2021-03-19 5:09 ` [PATCH 1/2] floppy: add a regression test for CVE-2020-25741 Alexander Bulekov
2021-03-19 5:09 ` [PATCH 2/2] floppy: add a regression test for CVE-2021-20196 Alexander Bulekov
2021-03-19 5:53 ` Markus Armbruster [this message]
2021-03-19 9:26 ` [PATCH 1/2] floppy: add a regression test for CVE-2020-25741 Paolo Bonzini
2021-03-19 9:54 ` Markus Armbruster
2021-03-19 10:17 ` Paolo Bonzini
2021-03-19 14:51 ` Alexander Bulekov
2021-03-19 14:52 ` Alexander Bulekov
2021-05-18 17:30 ` [PATCH] fdc: check null block pointer before blk_pwrite John Snow
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