1 files changed, 7 insertions, 5 deletions

diff --git a/libbb/xfuncs.c b/libbb/xfuncs.c
index 67c986640..4e17c28bd 100644
--- a/libbb/xfuncs.c
+++ b/libbb/xfuncs.c
@@ -484,12 +484,14 @@ int fdprintf(int fd, const char *format, ...)
 #else
         // Bloat for systems that haven't got the GNU extension.
         va_start(p, format);
-        r = vsnprintf(NULL, 0, format, p);
-        va_end(p);
-        string_ptr = xmalloc(r+1);
-        va_start(p, format);
-        r = vsnprintf(string_ptr, r+1, format, p);
+        r = vsnprintf(NULL, 0, format, p) + 1;
         va_end(p);
+        string_ptr = malloc(r);
+        if (string_ptr) {
+                va_start(p, format);
+                r = vsnprintf(string_ptr, r, format, p);
+                va_end(p);
+        }
 #endif
 
         if (r >= 0) {