--- a/kexec/arch/i386/x86-linux-setup.c
+++ b/kexec/arch/i386/x86-linux-setup.c
@@ -176,6 +176,8 @@ static int file_scanf(const char *dir, c
 	FILE *fp;
 	int retno;
 	char filename[PATH_MAX];
+	long line_size = MAX_LINE;
+	char *line;
 
 	snprintf(filename, PATH_MAX, "%s/%s", dir, file);
 	filename[PATH_MAX-1] = 0;
@@ -186,7 +188,14 @@ static int file_scanf(const char *dir, c
 	}
 
 	va_start(argptr, scanf_line);
-	retno = vfscanf(fp, scanf_line, argptr);
+
+	line = xmalloc(sizeof(line) * line_size);
+	while(fgets(line, sizeof(line), fp) != NULL ) {
+		line_size += MAX_LINE;
+		line = xrealloc(line,line_size);
+	}
+	retno = vsscanf(line, scanf_line, argptr);
+
 	va_end(argptr);
 
 	fclose(fp);