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diff --git a/bin/ipfix.c b/bin/ipfix.c
index f998b72..604fe25 100644
--- a/bin/ipfix.c
+++ b/bin/ipfix.c
@@ -1067,6 +1067,13 @@ ipfix_template_record_t *ipfix_template_record;
while ( size_left ) {
uint32_t id, count;
+ if ( size_left < 4 ) {
+ LogError("Process_ipfix [%u] Template withdraw size error at %s line %u" ,
+ exporter->info.id, __FILE__, __LINE__, strerror (errno));
+ size_left = 0;
+ continue;
+ }
+
// map next record.
ipfix_template_record = (ipfix_template_record_t *)DataPtr;
size_left -= 4;
@@ -1146,7 +1153,7 @@ uint16_t offset_std_sampler_interval, offset_std_sampler_algorithm, found_std_sa
uint16_t id, length;
int Enterprise;
- if ( size_left && size_left < 4 ) {
+ if ( size_left < 4 ) {
LogError("Process_ipfix [%u] Template size error at %s line %u" ,
exporter->info.id, __FILE__, __LINE__, strerror (errno));
return;
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