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-rw-r--r--src/core/ngx_resolver.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/core/ngx_resolver.c b/src/core/ngx_resolver.c
index dcdbe0cc8..d59d0c471 100644
--- a/src/core/ngx_resolver.c
+++ b/src/core/ngx_resolver.c
@@ -2144,6 +2144,10 @@ ngx_resolver_rotate(ngx_resolver_t *r, in_addr_t *src, ngx_uint_t n)
dst = ngx_resolver_alloc(r, n * sizeof(in_addr_t));
+ if (dst == NULL) {
+ return dst;
+ }
+
j = ngx_random() % n;
if (j == 0) {