[GIT PULL] perfcounters fix

[GIT PULL] perfcounters fix

[Ingo Molnar]

Linus,

Please pull the latest perfcounters-fixes-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git perfcounters-fixes-for-linus

 Thanks,

	Ingo

------------------>
Xiao Guangrong (1):
      perf_counter: Fix buffer overflow in perf_copy_attr()


 kernel/perf_counter.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c
index d7cbc57..a67a1dc 100644
--- a/kernel/perf_counter.c
+++ b/kernel/perf_counter.c
@@ -4171,6 +4171,7 @@ static int perf_copy_attr(struct perf_counter_attr __user *uattr,
 			if (val)
 				goto err_size;
 		}
+		size = sizeof(*attr);
 	}
 
 	ret = copy_from_user(attr, uattr, size);