diff -up dosfstools-3.0.9/src/dosfslabel.c.old dosfstools-3.0.9/src/dosfslabel.c
--- dosfstools-3.0.9/src/dosfslabel.c.old	2010-01-23 10:13:31.000000000 +0100
+++ dosfstools-3.0.9/src/dosfslabel.c	2011-04-05 10:56:24.642612056 +0200
@@ -85,7 +85,7 @@ static void check_atari( void )
 
 int main(int argc, char *argv[])
 {
-    DOS_FS fs;
+    DOS_FS fs = {0};
     rw = 0;
 
     char *device = NULL;
@@ -116,6 +116,8 @@ int main(int argc, char *argv[])
 
     fs_open(device, rw);
     read_boot(&fs);
+    if (fs.fat_bits == 32)
+        read_fat(&fs);
     if (!rw) {
         fprintf(stdout, "%s\n", fs.label);
         exit(0);
diff -up dosfstools-3.0.9/src/fat.c.old dosfstools-3.0.9/src/fat.c
--- dosfstools-3.0.9/src/fat.c.old	2010-01-23 10:13:34.000000000 +0100
+++ dosfstools-3.0.9/src/fat.c	2011-04-05 10:57:22.659733090 +0200
@@ -89,8 +89,10 @@ void read_fat(DOS_FS *fs)
     unsigned long total_num_clusters;
 
     /* Clean up from previous pass */
-    free(fs->fat);
-    free(fs->cluster_owner);
+    if (fs->fat)
+        free(fs->fat);
+    if (fs->cluster_owner)
+        free(fs->cluster_owner);
     fs->fat = NULL;
     fs->cluster_owner = NULL;