@@ -277,6 +277,13 @@ _make_test_img 64M
poke_file "$TEST_IMG" "56" "\x00\x00\x00\x00"
$QEMU_IO -c "write 0 64k" "$TEST_IMG" 2>&1 | _filter_testdir | _filter_imgfmt
+echo
+echo "=== Testing incorrect refcount table offset ==="
+echo
+_make_test_img 64M
+poke_file "$TEST_IMG" "48" "\x00\x00\x00\x00\x00\x00\x00\x00"
+$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io
+
# success, all done
echo "*** done"
rm -f $seq.full
@@ -208,4 +208,10 @@ write failed: Input/output error
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
can't open device TEST_DIR/t.IMGFMT: Image does not contain a reference count table
+
+=== Testing incorrect refcount table offset ===
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
+qcow2: Marking image as corrupt: Preventing invalid allocation of L2 table at offset 0; further corruption events will be suppressed
+write failed: Input/output error
*** done