2006-02-09 Martin Hunt <hunt@redhat.com>

	* copy.c (_stp_copy_from_user): If access fails,
	return -1.

diff --git a/runtime/ChangeLog b/runtime/ChangeLog
index 546b907e6ce900a767722b7771785c2651f66c69..ca6b7c468319e3a7d436f4f57189c2d94264bc5f 100644 (file)
--- a/runtime/ChangeLog
+++ b/runtime/ChangeLog
@@ -1,3 +1,8 @@
+2006-02-09  Martin Hunt  <hunt@redhat.com>
+
+       * copy.c (_stp_copy_from_user): If access fails,
+       return -1.
+
 2006-01-25  Martin Hunt  <hunt@redhat.com>
 
        * stat.c (_stp_stat_init): Use _stp_alloc_percpu().

diff --git a/runtime/copy.c b/runtime/copy.c
index 7e28a6a68403014e43112e812fd2a1b202ed1daa..0822902d3e54440da02d331feb9e0f785d9a8e7b 100644 (file)
--- a/runtime/copy.c
+++ b/runtime/copy.c
@@ -157,8 +157,10 @@ _stp_copy_from_user (char *dst, const char __user *src, unsigned long count)
        if (count) {
                if (access_ok(VERIFY_READ, src, count))
                        count = __copy_from_user_inatomic(dst, src, count);
-               else
+               else {
                        memset(dst, 0, count);
+                       count = -1;
+               }
        }
        return count;
 }