[dpdk-dev] [PATCH 4/7] vhost: validate index in live-migration API
Maxime Coquelin
maxime.coquelin at redhat.com
Mon Oct 19 19:34:12 CEST 2020
This patch validates the queue index parameter, in order
to ensure no out-of-bound accesses happen.
Fixes: bd2e0c3fe5ac ("vhost: add APIs for live migration")
Cc: stable at dpdk.org
Signed-off-by: Maxime Coquelin <maxime.coquelin at redhat.com>
---
lib/librte_vhost/vhost.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/lib/librte_vhost/vhost.c b/lib/librte_vhost/vhost.c
index 801a1a5098..b9afe46ca2 100644
--- a/lib/librte_vhost/vhost.c
+++ b/lib/librte_vhost/vhost.c
@@ -1467,6 +1467,9 @@ int rte_vhost_get_vring_base(int vid, uint16_t queue_id,
if (dev == NULL || last_avail_idx == NULL || last_used_idx == NULL)
return -1;
+ if (queue_id >= VHOST_MAX_VRING)
+ return -1;
+
vq = dev->virtqueue[queue_id];
if (!vq)
return -1;
@@ -1493,6 +1496,9 @@ int rte_vhost_set_vring_base(int vid, uint16_t queue_id,
if (!dev)
return -1;
+ if (queue_id >= VHOST_MAX_VRING)
+ return -1;
+
vq = dev->virtqueue[queue_id];
if (!vq)
return -1;
--
2.26.2
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