From: Yunjian Wang <wangyunjian@huawei.com>
Date: Tue, 14 Dec 2021 13:30:25 +0000 (+0800)
Subject: mem: check allocation in dynamic hugepage init
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=5f69ebbd85300a197bbe9e6a630642352f5aba39;p=dpdk.git

mem: check allocation in dynamic hugepage init

The function malloc() could return NULL, the return value
need to be checked.

Fixes: 6f63858e55e6 ("mem: prevent preallocated pages from being freed")
Cc: stable@dpdk.org

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
---

diff --git a/lib/eal/common/eal_common_dynmem.c b/lib/eal/common/eal_common_dynmem.c
index 7c5437ddfa..c1e1889f5c 100644
--- a/lib/eal/common/eal_common_dynmem.c
+++ b/lib/eal/common/eal_common_dynmem.c
@@ -304,6 +304,10 @@ eal_dynmem_hugepage_init(void)
 				needed = num_pages - num_pages_alloc;
 
 				pages = malloc(sizeof(*pages) * needed);
+				if (pages == NULL) {
+					RTE_LOG(ERR, EAL, "Failed to malloc pages\n");
+					return -1;
+				}
 
 				/* do not request exact number of pages */
 				cur_pages = eal_memalloc_alloc_seg_bulk(pages,