diff -up net-snmp-5.8/agent/mibgroup/if-mib/data_access/interface_linux.c.original net-snmp-5.8/agent/mibgroup/if-mib/data_access/interface_linux.c
--- net-snmp-5.8/agent/mibgroup/if-mib/data_access/interface_linux.c.original	2022-02-02 15:06:29.382119898 +0900
+++ net-snmp-5.8/agent/mibgroup/if-mib/data_access/interface_linux.c	2022-02-02 15:15:39.298280447 +0900
@@ -600,7 +600,6 @@ netsnmp_arch_interface_container_load(ne
 {
     FILE           *devin;
     char            line[256];
-    netsnmp_interface_entry *entry = NULL;
     static char     scan_expected = 0;
     int             fd;
 #ifdef NETSNMP_ENABLE_IPV6
@@ -669,6 +668,7 @@ netsnmp_arch_interface_container_load(ne
      *   and retrieve (or create) the corresponding data structure.
      */
     while (fgets(line, sizeof(line), devin)) {
+        netsnmp_interface_entry *entry = NULL;
         char           *stats, *ifstart = line;
         u_int           flags;
         oid             if_index;
@@ -701,6 +701,11 @@ netsnmp_arch_interface_container_load(ne
         *stats++ = 0; /* null terminate name */
 
         if_index = netsnmp_arch_interface_index_find(ifstart);
+        if (if_index == 0) {
+            DEBUGMSGTL(("access:interface", "network interface %s is gone",
+                        ifstart));
+            continue;
+        }
 
         /*
          * set address type flags.
@@ -726,7 +731,7 @@ netsnmp_arch_interface_container_load(ne
             continue;
         }
 
-        entry = netsnmp_access_interface_entry_create(ifstart, 0);
+        entry = netsnmp_access_interface_entry_create(ifstart, if_index);
         if(NULL == entry) {
 #ifdef NETSNMP_ENABLE_IPV6
             netsnmp_access_ipaddress_container_free(addr_container, 0);