This is a note to let you know that I've just added the patch titled
vhost: use kzalloc() instead of kmalloc() followed by memset()
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
vhost-use-kzalloc-instead-of-kmalloc-followed-by-memset.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 4d8df0f5f79f747d75a7d356d9b9ea40a4e4c8a9 Mon Sep 17 00:00:00 2001
From: Prathu Baronia <prathubaronia2011@xxxxxxxxx>
Date: Mon, 22 May 2023 14:20:19 +0530
Subject: vhost: use kzalloc() instead of kmalloc() followed by memset()
From: Prathu Baronia <prathubaronia2011@xxxxxxxxx>
commit 4d8df0f5f79f747d75a7d356d9b9ea40a4e4c8a9 upstream.
Use kzalloc() to allocate new zeroed out msg node instead of
memsetting a node allocated with kmalloc().
Signed-off-by: Prathu Baronia <prathubaronia2011@xxxxxxxxx>
Message-Id: <20230522085019.42914-1-prathubaronia2011@xxxxxxxxx>
Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
Reviewed-by: Stefano Garzarella <sgarzare@xxxxxxxxxx>
Signed-off-by: Ajay Kaher <ajay.kaher@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/vhost/vhost.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -2577,12 +2577,11 @@ EXPORT_SYMBOL_GPL(vhost_disable_notify);
/* Create a new message. */
struct vhost_msg_node *vhost_new_msg(struct vhost_virtqueue *vq, int type)
{
- struct vhost_msg_node *node = kmalloc(sizeof *node, GFP_KERNEL);
+ /* Make sure all padding within the structure is initialized. */
+ struct vhost_msg_node *node = kzalloc(sizeof(*node), GFP_KERNEL);
if (!node)
return NULL;
- /* Make sure all padding within the structure is initialized. */
- memset(&node->msg, 0, sizeof node->msg);
node->vq = vq;
node->msg.type = type;
return node;
Patches currently in stable-queue which might be from prathubaronia2011@xxxxxxxxx are
queue-5.10/vhost-use-kzalloc-instead-of-kmalloc-followed-by-memset.patch
