diff --git a/asc2log.c b/asc2log.c
index 7f932ef..ea6b486 100644
--- a/asc2log.c
+++ b/asc2log.c
@@ -50,6 +50,7 @@
 #include <sys/time.h>
 #include <time.h>
 #include <unistd.h>
+#include <limits.h>
 
 #include <linux/can.h>
 #include <linux/can/error.h>
@@ -206,6 +207,13 @@ void eval_can(char* buf, struct timeval *date_tvp, char timestamps, char base, i
 		if (strlen(dir) != 2) /* "Rx" or "Tx" */
 			return;
 
+		/* check for signed integer overflow */
+		if (dplace == 4 && read_tv.tv_usec >= INT_MAX / 100)
+			return;
+
+		if (dplace == 5 && read_tv.tv_usec >= INT_MAX / 10)
+			return;
+
 		if (dir[0] == 'R')
 			extra_info = " R\n";
 		else
@@ -269,6 +277,14 @@ void eval_canfd(char* buf, struct timeval *date_tvp, char timestamps, int dplace
 	if (strlen(dir) != 2) /* "Rx" or "Tx" */
 		return;
 
+	/* check for signed integer overflow */
+	if (dplace == 4 && read_tv.tv_usec >= INT_MAX / 100)
+		return;
+
+	/* check for signed integer overflow */
+	if (dplace == 5 && read_tv.tv_usec >= INT_MAX / 10)
+		return;
+
 	if (dir[0] == 'R')
 		extra_info = " R\n";
 	else