alpha: fix stack smashing in old_adjtimex(2)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 0b961093ca5cac69fe88598ed7ebc9c023a11a78..6d76e528ab8f2606ddde5e3b739598b86a7cb5b4 100644 (file)
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -1290,7 +1290,7 @@ SYSCALL_DEFINE1(old_adjtimex, struct timex32 __user *, txc_p)
        /* copy relevant bits of struct timex. */
        if (copy_from_user(&txc, txc_p, offsetof(struct timex32, time)) ||
            copy_from_user(&txc.tick, &txc_p->tick, sizeof(struct timex32) - 
-                          offsetof(struct timex32, time)))
+                          offsetof(struct timex32, tick)))
          return -EFAULT;
 
        ret = do_adjtimex(&txc);