1 files changed, 6 insertions, 0 deletions
diff --git a/src/os/unix/ngx_aio_write_chain.c b/src/os/unix/ngx_aio_write_chain.c
index 4d45f079a..c1109dc12 100644
--- a/src/os/unix/ngx_aio_write_chain.c
+++ b/src/os/unix/ngx_aio_write_chain.c
@@ -20,6 +20,12 @@ ngx_chain_t *ngx_aio_write_chain(ngx_connection_t *c, ngx_chain_t *in,
     ngx_err_t     err;
     ngx_chain_t  *cl;
 
+    /* the maximum limit size is the maximum size_t value - the page size */
+
+    if (limit == 0 || limit > MAX_SIZE_T_VALUE - ngx_pagesize) {
+        limit = MAX_SIZE_T_VALUE - ngx_pagesize;
+    }
+
     send = 0;
     sent = 0;
     cl = in;