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graph: fix null dereference in stats

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In function 'stats_mem_init', pointer 'stats' should
be confirmed not null before memset it.

Fixes: af1ae8b6a3 ("graph: implement stats")
Cc: stable@dpdk.org

Signed-off-by: Hongbo Zheng <zhenghongbo3@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
Reviewed-by: Jerin Jacob <jerinj@marvell.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
This commit is contained in:
Hongbo Zheng 2021-05-06 15:16:27 +08:00 committed by David Marchand
parent 3b47572fbe
commit 2d2bf7de1a
1 changed files with 1 additions and 1 deletions
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lib/graph/graph_stats.c
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@ -119,8 +119,8 @@ stats_mem_init(struct cluster *cluster,
cluster_node_size = RTE_ALIGN(cluster_node_size, RTE_CACHE_LINE_SIZE);
stats = realloc(NULL, sz);
memset(stats, 0, sz);
if (stats) {
memset(stats, 0, sz);
stats->fn = fn;
stats->cluster_node_size = cluster_node_size;
stats->max_nodes = 0;