@@ -51,7 +51,7 @@ typedef struct BDRVParallelsState {
uint32_t *catalog_bitmap;
unsigned int catalog_size;
- int tracks;
+ unsigned int tracks;
} BDRVParallelsState;
static int parallels_probe(const uint8_t *buf, int buf_size, const char *filename)
@@ -92,6 +92,11 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
bs->total_sectors = le32_to_cpu(ph.nb_sectors);
s->tracks = le32_to_cpu(ph.tracks);
+ if (s->tracks == 0) {
+ error_setg(errp, "Invalid image: Zero sectors per track");
+ ret = -EINVAL;
+ goto fail;
+ }
s->catalog_size = le32_to_cpu(ph.catalog_entries);
if (s->catalog_size > INT_MAX / 4) {
@@ -42,6 +42,7 @@ _supported_fmt parallels
_supported_proto generic
_supported_os Linux
+tracks_offset=$((0x1c))
catalog_entries_offset=$((0x20))
nb_sectors_offset=$((0x24))
@@ -63,6 +64,12 @@ poke_file "$TEST_IMG" "$nb_sectors_offset" "\xff\xff\xff\xff"
poke_file "$TEST_IMG" "$catalog_entries_offset" "\x01\x00\x00\x40"
{ $QEMU_IO -c "read 64M 64M" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
+echo
+echo "== Zero sectors per track =="
+_use_sample_img fake.parallels.bz2
+poke_file "$TEST_IMG" "$tracks_offset" "\x00\x00\x00\x00"
+{ $QEMU_IO -c "read 0 512" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
+
# success, all done
echo "*** done"
rm -f $seq.full
@@ -11,4 +11,8 @@ no file open, try 'help open'
== Overflow in catalog allocation ==
qemu-io: can't open device TEST_DIR/fake.parallels: Catalog too large
no file open, try 'help open'
+
+== Zero sectors per track ==
+qemu-io: can't open device TEST_DIR/fake.parallels: Invalid image: Zero sectors per track
+no file open, try 'help open'
*** done