echo: fix SEGV when run with no args

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/coreutils/echo.c b/coreutils/echo.c
index 42c3f9ed8..72e18c161 100644
--- a/coreutils/echo.c
+++ b/coreutils/echo.c
@@ -97,7 +97,7 @@ int echo_main(int argc UNUSED_PARAM, char **argv)
                 buflen += strlen(arg) + 1;
                 pp++;
         }
-        out = buffer = xmalloc(buflen);
+        out = buffer = xmalloc(buflen + 1); /* +1 is needed for "no args" case */
 
         while ((arg = *argv) != NULL) {
                 int c;