kernel/printk/printk.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 4dae9cbe9259..7e4a0412d9ff 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -410,6 +410,7 @@ struct devkmsg_user {
 	u64 seq;
 	u32 idx;
 	enum log_flags prev;
+	struct ratelimit_state rs;
 	struct mutex lock;
 	char buf[8192];
 };
@@ -483,6 +484,8 @@ static ssize_t devkmsg_read(struct file *file, char __user *buf,
 
 	if (!user)
 		return -EBADF;
+	if (!___ratelimit(&user->rs, current->comm))
+		return 0;
 
 	ret = mutex_lock_interruptible(&user->lock);
 	if (ret)
@@ -671,6 +674,9 @@ static int devkmsg_open(struct inode *inode, struct file *file)
 	if (!user)
 		return -ENOMEM;
 
+	/* Configurable? */
+	ratelimit_state_init(&user->rs, DEFAULT_RATELIMIT_INTERVAL, DEFAULT_RATELIMIT_BURST);
+
 	mutex_init(&user->lock);
 
 	raw_spin_lock_irq(&logbuf_lock);