--- /dev/null
+// commit 9543656cc32fda48fc463f332ee20e91eed2b768 2016-03-06
+// __putenv could be confused into freeing storage that does not belong to the implementation
+#define _GNU_SOURCE
+#include <stdlib.h>
+#include <string.h>
+
+int main(void)
+{
+ setenv("A", "1", 1);
+ setenv("A", "2", 1);
+ char *c = strdup("A=3");
+ putenv(c);
+ setenv("A", "4", 1);
+ free(c);
+ return 0;
+}