linux-kernel - [PATCH 5/6] mm, mempool: use kmalloc_array

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20170927082038.3782-6-jthumshirn@suse.de>
Date:   Wed, 27 Sep 2017 10:20:37 +0200
From:   Johannes Thumshirn <jthumshirn@...e.de>
To:     Christoph Lameter <cl@...ux.com>,
        Pekka Enberg <penberg@...nel.org>,
        David Rientjes <rientjes@...gle.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Damien Le Moal <damien.lemoal@....com>,
        Christoph Hellwig <hch@....de>,
        Johannes Thumshirn <jthumshirn@...e.de>
Subject: [PATCH 5/6] mm, mempool: use kmalloc_array_node

Now that we have a NUMA-aware version of kmalloc_array() we can use it
instead of kmalloc_node() without an overflow check in the size
calculation.

Signed-off-by: Johannes Thumshirn <jthumshirn@...e.de>
---
 mm/mempool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/mempool.c b/mm/mempool.c
index 1c0294858527..26f1b70c4a4e 100644
--- a/mm/mempool.c
+++ b/mm/mempool.c
@@ -188,7 +188,7 @@ mempool_t *mempool_create_node(int min_nr, mempool_alloc_t *alloc_fn,
 	pool = kzalloc_node(sizeof(*pool), gfp_mask, node_id);
 	if (!pool)
 		return NULL;
-	pool->elements = kmalloc_node(min_nr * sizeof(void *),
+	pool->elements = kmalloc_array_node(min_nr, sizeof(void *),
 				      gfp_mask, node_id);
 	if (!pool->elements) {
 		kfree(pool);
-- 
2.13.5