xemu/tests/qemu-iotests/075.out
Stefan Hajnoczi f56b9bc3ae block/cloop: refuse images with bogus offsets (CVE-2014-0144)
The offsets[] array allows efficient seeking and tells us the maximum
compressed data size.  If the offsets are bogus the maximum compressed
data size will be unrealistic.

This could cause g_malloc() to abort and bogus offsets mean the image is
broken anyway.  Therefore we should refuse such images.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-04-01 13:59:47 +02:00

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QA output created by 075
== check that the first sector can be read ==
read 512/512 bytes at offset 0
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
== block_size must be a multiple of 512 ==
qemu-io: can't open device TEST_DIR/simple-pattern.cloop: block_size 513 must be a multiple of 512
no file open, try 'help open'
== block_size cannot be zero ==
qemu-io: can't open device TEST_DIR/simple-pattern.cloop: block_size cannot be zero
no file open, try 'help open'
== huge block_size ===
qemu-io: can't open device TEST_DIR/simple-pattern.cloop: block_size 4294966784 must be 64 MB or less
no file open, try 'help open'
== offsets_size overflow ===
qemu-io: can't open device TEST_DIR/simple-pattern.cloop: n_blocks 4294967295 must be 536870911 or less
no file open, try 'help open'
== refuse images that require too many offsets ===
qemu-io: can't open device TEST_DIR/simple-pattern.cloop: image requires too many offsets, try increasing block size
no file open, try 'help open'
== refuse images with non-monotonically increasing offsets ==
qemu-io: can't open device TEST_DIR/simple-pattern.cloop: offsets not monotonically increasing at index 1, image file is corrupt
no file open, try 'help open'
== refuse images with invalid compressed block size ==
qemu-io: can't open device TEST_DIR/simple-pattern.cloop: invalid compressed block size at index 1, image file is corrupt
no file open, try 'help open'
*** done