[libvirt] [PATCH] virsh: Fix ordering of arguments when calling vshCalloc.

Peter Krempa pkrempa at redhat.com
Wed Jul 4 11:30:52 UTC 2012


On 07/04/12 12:23, Peter Krempa wrote:
> In vshSnapshotListCollect() vshCalloc was called with swapped nmemb and
> size argument. This caused division by zero in xalloc_oversized as the
> macro doesn't expect size to be zero.
> ---
>   tools/virsh.c |    4 ++--
>   1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/tools/virsh.c b/tools/virsh.c
> index 53d1825..25ed177 100644
> --- a/tools/virsh.c
> +++ b/tools/virsh.c
> @@ -17200,8 +17200,8 @@ vshSnapshotListCollect(vshControl *ctl, virDomainPtr dom,
>       if (count >= 0) {
>           /* When mixing --from and --tree, we also want a copy of from
>            * in the list, but with no parent for that one entry.  */
> -        snaplist->snaps = vshCalloc(ctl, sizeof(*snaplist->snaps),
> -                                    count + (tree && from));
> +        snaplist->snaps = vshCalloc(ctl, pcount + (tree && from),

Actualy, here's a typo: I'll squash in s/pcount/count/.

> +                                    sizeof(*snaplist->snaps));
>           snaplist->nsnaps = count;
>           for (i = 0; i < count; i++)
>               snaplist->snaps[i].snap = snaps[i];

Peter






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