1 files changed, 4 insertions, 0 deletions
diff --git a/src/basic/terminal-util.c b/src/basic/terminal-util.c
index a1a789984f..b692c52e59 100644
--- a/src/basic/terminal-util.c
+++ b/src/basic/terminal-util.c
@@ -1041,6 +1041,10 @@ int ptsname_malloc(int fd, char **ret) {
                 }
 
                 free(c);
+
+                if (l > SIZE_MAX / 2)
+                        return -ENOMEM;
+
                 l *= 2;
         }
 }