bugfix: fix the crash problem when the app opens a tx only virtual device.v4.6.59-20231030

1 files changed, 14 insertions, 2 deletions

diff --git a/infra/src/vnode_common.c b/infra/src/vnode_common.c
index 66c7f5d..1c8abce 100644
--- a/infra/src/vnode_common.c
+++ b/infra/src/vnode_common.c
@@ -438,7 +438,13 @@ struct vnode_prod_stat * __vnode_common_prod_stat_get(struct vnode_prod * prod)
 
         for (unsigned int consq = 0; consq < cons->nr_consq; consq++)
         {
-            struct tunnel_desc * tunnel_desc = *tunnel_block_locate(prod->block, prodq, consq);
+            struct tunnel_block * block = ACCESS_ONCE(prod->block);
+            if (block == NULL)
+            {
+                return prod_stat;
+            }
+
+            struct tunnel_desc * tunnel_desc = *tunnel_block_locate(block, prodq, consq);
             assert(tunnel_desc != NULL);
 
             prod_on_line += tunnel_desc->on_line;
@@ -477,7 +483,13 @@ struct vnode_cons_stat * __vnode_common_cons_stat_get(struct vnode_cons * cons)
 
         for(unsigned int prodq = 0; prodq < prod->nr_prodq; prodq++)
         {
-            struct tunnel_desc * tunnel_desc = *tunnel_block_locate(prod->block, prodq, consq);
+            struct tunnel_block * block = ACCESS_ONCE(cons->block);
+            if(block == NULL)
+            {
+                return cons_stat;
+            }
+
+            struct tunnel_desc * tunnel_desc = *tunnel_block_locate(block, prodq, consq);
             assert(tunnel_desc != NULL);
 
             consq_on_line += tunnel_desc->on_line;