From e4c20d96f178dc03289b0f74ff9b6ee1668b9758 Mon Sep 17 00:00:00 2001
From: Mark Atwood <mark@wolfssl.com>
Date: Thu, 23 Jul 2026 11:38:18 -0700
Subject: [PATCH] fix: check WMALLOC result in sftp rm/rename handlers

---
 examples/sftpclient/sftpclient.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/examples/sftpclient/sftpclient.c b/examples/sftpclient/sftpclient.c
index b7e7c332d..4c610e22e 100644
--- a/examples/sftpclient/sftpclient.c
+++ b/examples/sftpclient/sftpclient.c
@@ -1092,6 +1092,10 @@ static int doCmds(func_args* args)
             if (pt[0] != '/') {
                 int maxSz = (int)WSTRLEN(workingDir) + sz + 2;
                 f = (char*)WMALLOC(maxSz, NULL, DYNAMIC_TYPE_TMP_BUFFER);
+                if (f == NULL) {
+                    err_msg("Error malloc'ing");
+                    return -1;
+                }
 
                 f[0] = '\0';
                 WSTRNCAT(f, workingDir, maxSz);
@@ -1180,6 +1184,11 @@ static int doCmds(func_args* args)
             if (to[0] != '/') {
                 int maxSz = (int)WSTRLEN(workingDir) + toSz + 2;
                 fTo = (char*)WMALLOC(maxSz, NULL, DYNAMIC_TYPE_TMP_BUFFER);
+                if (fTo == NULL) {
+                    err_msg("Error malloc'ing");
+                    WFREE(f, NULL, DYNAMIC_TYPE_TMP_BUFFER);
+                    return -1;
+                }
 
                 fTo[0] = '\0';
                 WSTRNCAT(fTo, workingDir, maxSz);