[dpdk-dev] [PATCH 1/1] mem: check allocation in dynamic hugepage init

Yunjian Wang wangyunjian at huawei.com
Tue Dec 14 14:30:25 CET 2021


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

Fixes: 694161b7e065 ("mem: extract common dynamic memory allocation")
Cc: stable at dpdk.org

Signed-off-by: Yunjian Wang <wangyunjian at huawei.com>
---
 lib/eal/common/eal_common_dynmem.c | 4 ++++
 1 file changed, 4 insertions(+)

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,
-- 
2.27.0



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