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vmdk: Widen before shifting 32 bit header field 

Coverity spotted this.

The field is 32 bits, but if it's possible to overflow in 32 bit
left shift.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Fam Zheng 2015-04-27 22:23:01 +08:00 committed by Kevin Wolf
parent 5505e8b76f
commit 7237aecd7e
1 changed files with 1 additions and 1 deletions
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2
block/vmdk.c
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@ -523,7 +523,7 @@ static int vmdk_open_vmfs_sparse(BlockDriverState *bs,
}
ret = vmdk_add_extent(bs, file, false,
le32_to_cpu(header.disk_sectors),
le32_to_cpu(header.l1dir_offset) << 9,
(int64_t)le32_to_cpu(header.l1dir_offset) << 9,
0,
le32_to_cpu(header.l1dir_size),
4096,