Initialize word in the childs stack which will be loaded into the %esi register.

diff --git a/sysdeps/unix/sysv/linux/i386/clone.S b/sysdeps/unix/sysv/linux/i386/clone.S
index 64c0778fd79cc6760cefdc516a20172297a1c65a..8f655a7305f9800581030d42d6e2c0bd792a5730 100644 (file)
--- a/sysdeps/unix/sysv/linux/i386/clone.S
+++ b/sysdeps/unix/sysv/linux/i386/clone.S
@@ -69,6 +69,8 @@ ENTRY (BP_SYM (__clone))
           It will be popped off in the child in the ebx frobbing below.  */
        movl    FUNC(%esp),%eax
        movl    %eax,4(%ecx)
+       /* Don't leak any information.  */
+       movl    $0,(%ecx)
 
        /* Do the system call */
        pushl   %ebx