From: Max Reitz <mreitz@redhat.com>
To: qemu-devel@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>, Peter Lieven <pl@kamp.de>,
Stefan Hajnoczi <stefanha@redhat.com>,
Max Reitz <mreitz@redhat.com>
Subject: [Qemu-devel] [PATCH 0/2] qcow2: Do not overflow when writing an L1 sector
Date: Thu, 16 Oct 2014 15:25:55 +0200 [thread overview]
Message-ID: <1413465957-20865-1-git-send-email-mreitz@redhat.com> (raw)
qcow2_write_l1_entry() may read L1 entries from beyond the end of the
in-memory L1 table when updating a sector. Fix this and add a
qemu-iotest.
Max Reitz (2):
qcow2: Do not overflow when writing an L1 sector
iotests: Add test for qcow2 L1 table update
block/qcow2-cluster.c | 6 +++--
tests/qemu-iotests/107 | 61 ++++++++++++++++++++++++++++++++++++++++++++++
tests/qemu-iotests/107.out | 10 ++++++++
tests/qemu-iotests/group | 1 +
4 files changed, 76 insertions(+), 2 deletions(-)
create mode 100755 tests/qemu-iotests/107
create mode 100644 tests/qemu-iotests/107.out
--
2.1.2
next reply other threads:[~2014-10-16 13:26 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-16 13:25 Max Reitz [this message]
2014-10-16 13:25 ` [Qemu-devel] [PATCH 1/2] qcow2: Do not overflow when writing an L1 sector Max Reitz
2014-10-20 6:23 ` Peter Lieven
2014-10-16 13:25 ` [Qemu-devel] [PATCH 2/2] iotests: Add test for qcow2 L1 table update Max Reitz
2014-10-20 6:25 ` Peter Lieven
2014-10-20 9:09 ` Max Reitz
2014-10-20 9:18 ` Peter Lieven
2014-10-16 14:54 ` [Qemu-devel] [PATCH 0/2] qcow2: Do not overflow when writing an L1 sector Eric Blake
2014-10-22 15:31 ` Kevin Wolf
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