diff options
| author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2020-03-12 11:19:49 +0300 |
|---|---|---|
| committer | Michael Roth <mdroth@linux.vnet.ibm.com> | 2020-06-03 19:58:05 -0500 |
| commit | 8fc4aa4822c55c9dbf7061a6fa4d9b3b8471800d (patch) | |
| tree | b686746a38a154311e039fe1492ed46bf4675c4c /hw/core/machine.c | |
| parent | 4a9486a02d17e81a54bc4b631fec7112a1850a9d (diff) | |
block/io: fix bdrv_co_do_copy_on_readv
Prior to 1143ec5ebf4 it was OK to qemu_iovec_from_buf() from aligned-up
buffer to original qiov, as qemu_iovec_from_buf() will stop at qiov end
anyway.
But after 1143ec5ebf4 we assume that bdrv_co_do_copy_on_readv works on
part of original qiov, defined by qiov_offset and bytes. So we must not
touch qiov behind qiov_offset+bytes bound. Fix it.
Cc: qemu-stable@nongnu.org # v4.2
Fixes: 1143ec5ebf4
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20200312081949.5350-1-vsementsov@virtuozzo.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
(cherry picked from commit 4ab78b19189a81038e744728ed949d09aa477550)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Diffstat (limited to 'hw/core/machine.c')
0 files changed, 0 insertions, 0 deletions