diff options
| author | Fam Zheng <famz@redhat.com> | 2014-11-10 15:07:44 +0800 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2014-11-14 09:20:35 +0000 |
| commit | f3a9cfddaec127078ac1898de6b063db8ac3bb48 (patch) | |
| tree | e8830cf5e066f3d602a8efc7e91a85a8e25b3f0b /block.c | |
| parent | 107f0d4677e126b073d9b606788d2c126c520416 (diff) | |
| download | qemu-f3a9cfddaec127078ac1898de6b063db8ac3bb48.tar.gz | |
block: Fix max nb_sectors in bdrv_make_zero
In bdrv_rw_co we report -EINVAL for nb_sectors > INT_MAX /
BDRV_SECTOR_SIZE, so a caller shouldn't exceed it.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1415603264-21497-1-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'block.c')
| -rw-r--r-- | block.c | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -2790,8 +2790,8 @@ int bdrv_make_zero(BlockDriverState *bs, BdrvRequestFlags flags) if (nb_sectors <= 0) { return 0; } - if (nb_sectors > INT_MAX) { - nb_sectors = INT_MAX; + if (nb_sectors > INT_MAX / BDRV_SECTOR_SIZE) { + nb_sectors = INT_MAX / BDRV_SECTOR_SIZE; } ret = bdrv_get_block_status(bs, sector_num, nb_sectors, &n); if (ret < 0) { |