[PATCH 3/3] vhost: fix the memory leak which will happen when memory_access_ok fails

[Takuya Yoshikawa]

We need to free newmem when vhost_set_memory() fails to complete.

Signed-off-by: Takuya Yoshikawa <yoshikawa.tak...@oss.ntt.co.jp>
---
 drivers/vhost/vhost.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 9633a3c..1241a22 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -337,8 +337,10 @@ static long vhost_set_memory(struct vhost_dev *d, struct 
vhost_memory __user *m)
                return -EFAULT;
        }
 
-       if (!memory_access_ok(d, newmem, vhost_has_feature(d, VHOST_F_LOG_ALL)))
+       if (!memory_access_ok(d, newmem, vhost_has_feature(d, 
VHOST_F_LOG_ALL))) {
+               kfree(newmem);
                return -EFAULT;
+       }
        oldmem = d->memory;
        rcu_assign_pointer(d->memory, newmem);
        synchronize_rcu();
-- 
1.7.0.4

--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html