From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: dev@dpdk.org, david.marchand@redhat.com, chenbo.xia@outlook.com,
fengli@smartx.com
Cc: Maxime Coquelin <maxime.coquelin@redhat.com>, stable@dpdk.org
Subject: [PATCH v2 6/7] vhost: fix missing lock protection in power monitor API
Date: Fri, 20 Oct 2023 10:48:03 +0200 [thread overview]
Message-ID: <20231020084804.3625099-7-maxime.coquelin@redhat.com> (raw)
In-Reply-To: <20231020084804.3625099-1-maxime.coquelin@redhat.com>
The power monitor get API is missing both access lock
protection and access status check.
Fixes: 34fd4373ce76 ("vhost: add power monitor API")
Cc: stable@dpdk.org
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
lib/vhost/vhost.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/lib/vhost/vhost.c b/lib/vhost/vhost.c
index a243f88398..d8d74623d4 100644
--- a/lib/vhost/vhost.c
+++ b/lib/vhost/vhost.c
@@ -2121,6 +2121,7 @@ rte_vhost_get_monitor_addr(int vid, uint16_t queue_id,
{
struct virtio_net *dev = get_device(vid);
struct vhost_virtqueue *vq;
+ int ret = 0;
if (dev == NULL)
return -1;
@@ -2131,6 +2132,13 @@ rte_vhost_get_monitor_addr(int vid, uint16_t queue_id,
if (vq == NULL)
return -1;
+ rte_rwlock_read_lock(&vq->access_lock);
+
+ if (unlikely(!vq->access_ok)) {
+ ret = -1;
+ goto out_unlock;
+ }
+
if (vq_is_packed(dev)) {
struct vring_packed_desc *desc;
desc = vq->desc_packed;
@@ -2150,7 +2158,10 @@ rte_vhost_get_monitor_addr(int vid, uint16_t queue_id,
pmc->match = 0;
}
- return 0;
+out_unlock:
+ rte_rwlock_read_unlock(&vq->access_lock);
+
+ return ret;
}
--
2.41.0
next prev parent reply other threads:[~2023-10-20 8:49 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-20 8:47 [PATCH v2 0/7] vhost: ensure virtqueue access status is checked Maxime Coquelin
2023-10-20 8:47 ` [PATCH v2 1/7] vhost: fix missing vring call check on virtqueue access Maxime Coquelin
2023-10-20 8:47 ` [PATCH v2 2/7] vhost: fix missing " Maxime Coquelin
2023-10-20 8:48 ` [PATCH v2 3/7] vhost: fix checking virtqueue access when notifying guest Maxime Coquelin
2023-10-20 8:48 ` [PATCH v2 4/7] vhost: fix check on virtqueue access in async registration Maxime Coquelin
2023-10-20 8:48 ` [PATCH v2 5/7] vhost: fix check on virtqueue access in in-flight getter Maxime Coquelin
2023-10-20 8:48 ` Maxime Coquelin [this message]
2023-10-20 8:48 ` [PATCH v2 7/7] vhost: fix checking virtqueue access in stats API Maxime Coquelin
2023-10-23 10:01 ` [PATCH v2 0/7] vhost: ensure virtqueue access status is checked David Marchand
2023-10-25 11:40 ` David Marchand
2023-10-25 12:22 ` Maxime Coquelin
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