Fix for sys_sysctl wrapper, from Ulrich Drepper.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3740

diff --git a/coregrind/m_syscalls/syscalls-linux.c b/coregrind/m_syscalls/syscalls-linux.c
index 1902b2440c3b38f48b19312c8b9e3093cbd4ed6f..416feece7624784bfbdad0ee072b5dde6472fab7 100644 (file)
--- a/coregrind/m_syscalls/syscalls-linux.c
+++ b/coregrind/m_syscalls/syscalls-linux.c
@@ -357,7 +357,7 @@ POST(sys_sysctl)
    args = (struct __vki_sysctl_args *)ARG1;
    if (args->oldlenp != NULL) {
       POST_MEM_WRITE((Addr)args->oldlenp, sizeof(*args->oldlenp));
-      POST_MEM_WRITE((Addr)args->oldval, *args->oldlenp);
+      POST_MEM_WRITE((Addr)args->oldval, 1 + *args->oldlenp);
    }
 }