diff --git a/[refs] b/[refs]
index 544f235c796a..094169106bec 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 6afcb3b7393f5aa388a0d077c490ed411ab3cd27
+refs/heads/master: e0b057b406a33501a656dc8d67ea945d7bcdad61
diff --git a/trunk/security/tomoyo/common.c b/trunk/security/tomoyo/common.c
index 96b7233a0df6..d41900de8a69 100644
--- a/trunk/security/tomoyo/common.c
+++ b/trunk/security/tomoyo/common.c
@@ -2591,6 +2591,7 @@ ssize_t tomoyo_write_control(struct tomoyo_io_buffer *head,
 		return -EFAULT;
 	if (mutex_lock_interruptible(&head->io_sem))
 		return -EINTR;
+	head->read_user_buf_avail = 0;
 	idx = tomoyo_read_lock();
 	/* Read a line and dispatch it to the policy handler. */
 	while (avail_len > 0) {