[Cluster-devel] [PATCH 3/3] fsck.gfs2: Fix unchecked malloc in gfs2_dup_set()

[Steven Whitehouse <swhiteho@redhat.com>]

Hi,

Those look good to me,

Steve.

On Fri, 2012-01-20 at 12:39 +0000, Andrew Price wrote:
> Spotted by coverity: Dereferencing a pointer that might be null "data"
> when calling "memset"
> 
> Signed-off-by: Andrew Price <anprice@redhat.com>
> ---
>  gfs2/fsck/util.c |    4 ++++
>  1 files changed, 4 insertions(+), 0 deletions(-)
> 
> diff --git a/gfs2/fsck/util.c b/gfs2/fsck/util.c
> index f37fe7d..6c80ae8 100644
> --- a/gfs2/fsck/util.c
> +++ b/gfs2/fsck/util.c
> @@ -253,6 +253,10 @@ static struct duptree *gfs2_dup_set(uint64_t dblock, int create)
>  	if (!create)
>  		return NULL;
>  	data = malloc(sizeof(struct duptree));
> +	if (data == NULL) {
> +		log_crit( _("Unable to allocate duptree structure\n"));
> +		return NULL;
> +	}
>  	dups_found++;
>  	memset(data, 0, sizeof(struct duptree));
>  	/* Add new node and rebalance tree. */