qcow2: Validate active L1 table offset and size (CVE-2014-0144)
This avoids an unbounded allocation.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
diff --git a/tests/qemu-iotests/080.out b/tests/qemu-iotests/080.out
index b06f47f..4ec2545 100644
--- a/tests/qemu-iotests/080.out
+++ b/tests/qemu-iotests/080.out
@@ -47,4 +47,15 @@
qemu-img: Could not create snapshot 'test': -27 (File too large)
read 512/512 bytes at offset 0
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== Invalid L1 table ==
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
+qemu-io: can't open device TEST_DIR/t.qcow2: Active L1 table too large
+no file open, try 'help open'
+qemu-io: can't open device TEST_DIR/t.qcow2: Active L1 table too large
+no file open, try 'help open'
+qemu-io: can't open device TEST_DIR/t.qcow2: Invalid L1 table offset
+no file open, try 'help open'
+qemu-io: can't open device TEST_DIR/t.qcow2: Invalid L1 table offset
+no file open, try 'help open'
*** done
