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Kevin Wolf 2ebafc854d qcow2: Fix header extension size check 
After reading the extension header, offset is incremented, but not
checked against end_offset any more. This way an integer overflow could
happen when checking whether the extension end is within the allowed
range, effectively disabling the check.

This patch adds the missing check and a test case for it.

Cc: qemu-stable@nongnu.org
Reported-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 1416935562-7760-2-git-send-email-kwolf@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-12-10 10:31:13 +01:00
..
sample_images
qemu-iotests: Test writing non-raw image headers to raw image
2014-12-10 10:31:13 +01:00
.gitignore
.gitignore: ignore tests/qemu-iotests/socket_scm_helper
2013-10-01 16:06:07 +04:00
001
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
001.out
…
002
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
002.out
qemu-iotests: A few more bdrv_pread/pwrite tests
2013-04-15 08:26:18 +02:00
003
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
003.out
…
004
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
004.out
…
005
qemu-iotests: Don't run 005 on vmdk split formats
2014-02-14 18:05:39 +01:00
005.out
…
006
…
006.out
…
007
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
007.out
…
008
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
008.out
…
009
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
009.out
…
010
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
010.out
…
011
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
011.out
…
012
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
012.out
…
013
qemu-iotests: change _supported_proto to file for various tests
2014-02-09 09:12:38 +01:00
013.out
qemu-iotests: Filter out 'qemu-io> ' prompt
2013-11-29 17:41:13 +01:00
014
qemu-iotests: change _supported_proto to file for various tests
2014-02-09 09:12:38 +01:00
014.out
qemu-iotests: Filter out 'qemu-io> ' prompt
2013-11-29 17:41:13 +01:00
015
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
015.out
…
016
qemu-iotests: Use qemu-io -f $IMGFMT
2014-12-10 10:31:12 +01:00
016.out
…
017
qemu-iotests: Add _unsupported_imgopts for vmdk subformats
2014-01-22 12:07:16 +01:00
017.out
qemu-iotests: Filter out 'qemu-io> ' prompt
2013-11-29 17:41:13 +01:00
018
qemu-iotests: change _supported_proto to file for various tests
2014-02-09 09:12:38 +01:00
018.out
qemu-iotests: Filter out 'qemu-io> ' prompt
2013-11-29 17:41:13 +01:00
019
block: qemu-iotests: make test 019 and 086 work with spaced pathnames
2014-04-29 16:19:37 +02:00
019.out
qemu-iotests: Filter out 'qemu-io> ' prompt
2013-11-29 17:41:13 +01:00
020
qemu-iotests: blacklist test 020 for NFS protocol
2014-02-09 09:12:38 +01:00
020.out
qemu-iotests: Filter out 'qemu-io> ' prompt
2013-11-29 17:41:13 +01:00
021
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
021.out
…
022
…
022.out
qemu-iotests: Filter out 'qemu-io> ' prompt
2013-11-29 17:41:13 +01:00
023
qemu-iotests: change _supported_proto to file for various tests
2014-02-09 09:12:38 +01:00
023.out
qemu-iotests: Filter out 'qemu-io> ' prompt
2013-11-29 17:41:13 +01:00
024
qemu-iotests: change _supported_proto to file for various tests
2014-02-09 09:12:38 +01:00
024.out
qemu-iotests: Filter out 'qemu-io> ' prompt
2013-11-29 17:41:13 +01:00
025
qemu-iotests: Run 025 for Archipelago block driver
2014-09-10 10:41:29 +02:00
025.out
qemu-iotests: Filter out 'qemu-io> ' prompt
2013-11-29 17:41:13 +01:00
026
qemu-iotests: change _supported_proto to file for various tests
2014-02-09 09:12:38 +01:00
026.out
qcow2: Don't rely on free_cluster_index in alloc_refcount_block() (CVE-2014-0147)
2014-04-01 15:21:03 +02:00
026.out.nocache
qemu-iotests: Correct 026 output
2013-10-07 13:23:19 +02:00
027
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
027.out
…
028
qemu-iotests: Fix 028 reference output for qed
2014-08-20 11:51:28 +02:00
028.out
qemu-iotests: Fix 028 reference output for qed
2014-08-20 11:51:28 +02:00
029
qcow2: Fix L1 allocation size in qcow2_snapshot_load_tmp() (CVE-2014-0145)
2014-04-01 15:22:35 +02:00
029.out
qcow2: Fix L1 allocation size in qcow2_snapshot_load_tmp() (CVE-2014-0145)
2014-04-01 15:22:35 +02:00
030
qemu-iotests: Add qemu-io format option in Python tests
2014-12-10 10:31:12 +01:00
030.out
…
031
iotests: Use $PYTHON for Python scripts
2014-06-27 20:00:00 +02:00
031.out
qcow2: Add corrupt bit
2013-08-30 15:48:43 +02:00
032
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
032.out
qemu-iotests: Filter out 'qemu-io> ' prompt
2013-11-29 17:41:13 +01:00
033
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
033.out
…
034
qemu-iotests: change _supported_proto to file for various tests
2014-02-09 09:12:38 +01:00
034.out
…
035
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
035.out
qemu-iotests: Filter out 'qemu-io> ' prompt
2013-11-29 17:41:13 +01:00
036
qcow2: Fix error path for unknown incompatible features
2014-07-18 13:12:15 +01:00
036.out
qcow2: Fix error path for unknown incompatible features
2014-07-18 13:12:15 +01:00
037
qemu-iotests: change _supported_proto to file for various tests
2014-02-09 09:12:38 +01:00
037.out
qemu-iotests: Filter out 'qemu-io> ' prompt
2013-11-29 17:41:13 +01:00
038
qemu-iotests: change _supported_proto to file for various tests
2014-02-09 09:12:38 +01:00
038.out
qemu-iotests: Filter out 'qemu-io> ' prompt
2013-11-29 17:41:13 +01:00
039
iotests: Use $PYTHON for Python scripts
2014-06-27 20:00:00 +02:00
039.out
iotests: Fix test outputs
2014-10-23 15:34:01 +02:00
040
qemu-iotests: Add qemu-io format option in Python tests
2014-12-10 10:31:12 +01:00
040.out
qemu-iotests: Test BLOCK_JOB_READY event for 0Kb image active commit
2014-06-26 13:51:00 +02:00
041
iotests: Omit length/offset test in 040 and 041
2014-11-03 11:41:48 +00:00
041.out
mirror: Fix qiov size for short requests
2014-07-07 09:15:29 +02:00
042
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
042.out
…
043
qemu-iotests: change _supported_proto to file for various tests
2014-02-09 09:12:38 +01:00
043.out
…
044
…
044.out
qcow2: Don't rely on free_cluster_index in alloc_refcount_block() (CVE-2014-0147)
2014-04-01 15:21:03 +02:00
045
qemu-iotests: add tests for runtime fd passing via SCM rights
2013-09-12 10:12:47 +02:00
045.out
qemu-iotests: add tests for runtime fd passing via SCM rights
2013-09-12 10:12:47 +02:00
046
qcow2: Set zero flag for discarded clusters
2014-02-21 21:02:21 +01:00
046.out
qemu-iotests: Filter out 'qemu-io> ' prompt
2013-11-29 17:41:13 +01:00
047
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
047.out
qemu-iotests: Filter out 'qemu-io> ' prompt
2013-11-29 17:41:13 +01:00
048
qemu-iotests: Use qemu-io -f $IMGFMT
2014-12-10 10:31:12 +01:00
048.out
qemu-iotests: Split qcow2 only cases in 048
2013-12-04 14:31:39 +01:00
049
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
049.out
qapi: introduce PreallocMode and new PreallocModes full and falloc.
2014-09-12 15:43:06 +02:00
050
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
050.out
qemu-iotests: add tests for rebasing zero clusters
2013-03-15 16:07:51 +01:00
051
block: Catch simultaneous usage of options and their aliases
2014-09-25 15:24:14 +02:00
051.out
block/qapi: Add cache information to query-block
2014-12-10 10:31:09 +01:00
052
qemu-iotests: Fix supported cache modes for 052
2014-10-03 10:30:33 +01:00
052.out
qemu-iotests: add 052 BDRV_O_SNAPSHOT test
2013-03-19 11:48:37 +01:00
053
qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usage
2013-09-27 11:10:45 +02:00
053.out
qemu-iotests: add 053 unaligned compressed image size test
2013-04-22 11:37:12 +02:00
054
iotests: Use $PYTHON for Python scripts
2014-06-27 20:00:00 +02:00
054.out
qemu-iotests: Adjustments due to error propagation
2013-09-12 10:12:48 +02:00
055
qemu-iotests: Add qemu-io format option in Python tests
2014-12-10 10:31:12 +01:00
055.out
Add tests for sync modes 'TOP' and 'NONE'
2013-07-26 22:01:31 +02:00
056
qemu-iotests: Improve and make use of QMPTestCase.wait_until_completed()
2014-04-25 18:05:05 +02:00
056.out
Add tests for sync modes 'TOP' and 'NONE'
2013-07-26 22:01:31 +02:00
057
qemu-iotests: add 057 internal snapshot for block device test case
2013-09-12 10:12:47 +02:00
057.out
qemu-iotests: add 057 internal snapshot for block device test case
2013-09-12 10:12:47 +02:00
058
qemu-iotests: Use qemu-io -f $IMGFMT
2014-12-10 10:31:12 +01:00
058.out
qemu-iotests: add test for snapshot in qemu-img convert
2013-12-04 15:19:00 +01:00
059
qemu-iotests: Add data pattern in version3 VMDK sample image in 059
2014-08-15 15:07:13 +02:00
059.out
qemu-iotests: Add data pattern in version3 VMDK sample image in 059
2014-08-15 15:07:13 +02:00
060
iotests: qemu-img info output for corrupt image
2014-10-04 19:18:17 +01:00
060.out
iotests: Fix test outputs
2014-10-23 15:34:01 +02:00
061
iotests: Expand test 061
2014-11-03 11:41:49 +00:00
061.out
iotests: Expand test 061
2014-11-03 11:41:49 +00:00
062
qemu-iotests: Snapshotting zero clusters
2013-08-30 15:28:52 +02:00
062.out
qemu-iotests: Snapshotting zero clusters
2013-08-30 15:28:52 +02:00
063
qemu-iotests: change _supported_proto to file for various tests
2014-02-09 09:12:38 +01:00
063.out
add qemu-img convert -n option (skip target volume creation)
2013-09-06 15:25:07 +02:00
064
block: qemu-iotests for vhdx, add write test support
2013-11-07 13:58:59 +01:00
064.out
block: qemu-iotests for vhdx, add write test support
2013-11-07 13:58:59 +01:00
065
qapi: Add corrupt field to ImageInfoSpecificQCow2
2014-10-04 19:18:17 +01:00
065.out
qemu-iotests: Additional info from qemu-img info
2013-10-11 16:49:50 +02:00
066
qemu-iotests: Discard preallocated zero clusters
2013-10-11 16:49:59 +02:00
066.out
qemu-iotests: Discard preallocated zero clusters
2013-10-11 16:49:59 +02:00
067
iotests: Use -qmp-pretty in 067
2014-12-10 10:25:30 +01:00
067.out
block/qapi: Add cache information to query-block
2014-12-10 10:31:09 +01:00
068
qemu-iotests: Test for loading VM state from qcow2
2013-10-25 11:08:20 +02:00
068.out
qemu-iotests: Test for loading VM state from qcow2
2013-10-25 11:08:20 +02:00
069
block: delete cow block driver
2014-09-22 11:39:45 +01:00
069.out
block: Print its file name if backing file opening failed
2013-11-14 13:09:06 +01:00
070
iotests: Use _img_info
2014-10-04 19:18:17 +01:00
070.out
iotests: Use _img_info
2014-10-04 19:18:17 +01:00
071
qemu-iotests: Use qemu-io -f $IMGFMT
2014-12-10 10:31:12 +01:00
071.out
qemu-iotests: Use qemu-io -f $IMGFMT
2014-12-10 10:31:12 +01:00
072
block: delete cow block driver
2014-09-22 11:39:45 +01:00
072.out
iotests: Test file format nesting
2014-01-22 12:07:18 +01:00
073
qemu-iotests: Test qcow2 count_contiguous_clusters()
2013-11-15 13:37:43 +01:00
073.out
qemu-iotests: Test qcow2 count_contiguous_clusters()
2013-11-15 13:37:43 +01:00
074
qemu-iotests: Split qcow2 only cases in 048
2013-12-04 14:31:39 +01:00
074.out
qemu-iotests: Split qcow2 only cases in 048
2013-12-04 14:31:39 +01:00
075
block: qemu-iotests change _supported_proto to file once more.
2014-10-23 15:34:01 +02:00
075.out
block/cloop: fix offsets[] size off-by-one
2014-04-01 13:59:47 +02:00
076
iotests: add v2 parallels sample image and simple test for it
2014-11-03 09:48:41 +00:00
076.out
iotests: add v2 parallels sample image and simple test for it
2014-11-03 09:48:41 +00:00
077
qemu-iotests: Use qemu-io -f $IMGFMT
2014-12-10 10:31:12 +01:00
077.out
qemu-iotests: Test pwritev RMW logic
2014-01-24 17:40:25 +01:00
078
block: qemu-iotests change _supported_proto to file once more.
2014-10-23 15:34:01 +02:00
078.out
bochs: Fix catalog size check
2014-04-11 13:59:49 +02:00
079
block: qemu-iotests change _supported_proto to file once more.
2014-10-23 15:34:01 +02:00
079.out
qemu-iotests: add test for qcow2 preallocation with different cluster sizes
2014-02-09 09:12:39 +01:00
080
qcow2: Fix header extension size check
2014-12-10 10:31:13 +01:00
080.out
qcow2: Fix header extension size check
2014-12-10 10:31:13 +01:00
081
qemu-iotests: Use qemu-io -f $IMGFMT
2014-12-10 10:31:12 +01:00
081.out
qemu-iotests: Use qemu-io -f $IMGFMT
2014-12-10 10:31:12 +01:00
082
block: qemu-iotests change _supported_proto to file once more.
2014-10-23 15:34:01 +02:00
082.out
qapi: Add corrupt field to ImageInfoSpecificQCow2
2014-10-04 19:18:17 +01:00
083
iotests: Fix 083 for out-of-tree builds
2014-06-27 20:00:01 +02:00
083.out
qemu-iotests: add 083 NBD client disconnect tests
2014-03-14 16:29:02 +01:00
084
block/vdi: Limit maximum size even futher
2014-11-09 23:39:50 +01:00
084.out
block/vdi: Limit maximum size even futher
2014-11-09 23:39:50 +01:00
085
block: qemu-iotests - update 085 to use common.qemu
2014-05-09 20:57:32 +02:00
085.out
block: qemu-iotests 085 - live snapshots tests
2014-03-07 11:36:12 +01:00
086
block: qemu-iotests change _supported_proto to file once more.
2014-10-23 15:34:01 +02:00
086.out
qemu-iotests: Test progress output for conversion
2014-03-05 15:58:32 +01:00
087
qemu-iotests: Test missing "driver" key for blockdev-add
2014-09-26 13:14:11 -04:00
087.out
Merge remote-tracking branch 'remotes/qmp-unstable/queue/qmp' into staging
2014-09-29 18:18:29 +01:00
088
block: qemu-iotests change _supported_proto to file once more.
2014-10-23 15:34:01 +02:00
088.out
vpc: Validate block size (CVE-2014-0142)
2014-04-01 13:59:47 +02:00
089
qemu-iotests: Use qemu-io -f $IMGFMT
2014-12-10 10:31:12 +01:00
089.out
qapi: Add corrupt field to ImageInfoSpecificQCow2
2014-10-04 19:18:17 +01:00
090
block: qemu-iotests change _supported_proto to file once more.
2014-10-23 15:34:01 +02:00
090.out
iotests: Discarding compressed clusters on qcow2
2014-04-29 16:39:51 +02:00
091
qemu-iotests: Handle cache mode option in 091
2014-05-28 14:22:25 +02:00
091.out
block: qemu-iotests - test for live migration
2014-05-09 20:57:32 +02:00
092
block: qemu-iotests change _supported_proto to file once more.
2014-10-23 15:34:01 +02:00
092.out
qcow1: Stricter backing file length check
2014-05-19 11:36:49 +02:00
095
iotests: Use _img_info
2014-10-04 19:18:17 +01:00
095.out
iotests: Use _img_info
2014-10-04 19:18:17 +01:00
097
iotests: Add test for backing-chain commits
2014-11-03 11:41:48 +00:00
097.out
iotests: Add test for backing-chain commits
2014-11-03 11:41:48 +00:00
098
iotests: Add test for qcow2's bdrv_make_empty
2014-11-03 11:41:48 +00:00
098.out
iotests: Add test for qcow2's bdrv_make_empty
2014-11-03 11:41:48 +00:00
099
iotests: Plain blkdebug filename generation
2014-12-10 10:31:11 +01:00
099.out
iotests: Plain blkdebug filename generation
2014-12-10 10:31:11 +01:00
100
qemu-iotests: add multiwrite test cases
2014-08-29 14:10:15 +01:00
100.out
qemu-iotests: add multiwrite test cases
2014-08-29 14:10:15 +01:00
101
qemu-iotests: add test case 101 for short file I/O
2014-08-22 11:01:12 +02:00
101.out
qemu-iotests: add test case 101 for short file I/O
2014-08-22 11:01:12 +02:00
102
iotests: Add test for external image truncation
2014-11-03 11:41:47 +00:00
102.out
iotests: Add test for external image truncation
2014-11-03 11:41:47 +00:00
103
block: qemu-iotests change _supported_proto to file once more.
2014-10-23 15:34:01 +02:00
103.out
iotests: Add test for qcow2's cache options
2014-08-20 11:51:28 +02:00
104
block: round up file size to nearest sector
2014-09-12 15:43:06 +02:00
104.out
block: round up file size to nearest sector
2014-09-12 15:43:06 +02:00
105
vmdk: Fix integer overflow in offset calculation
2014-10-03 10:30:33 +01:00
105.out
vmdk: Fix integer overflow in offset calculation
2014-10-03 10:30:33 +01:00
107
block: qemu-iotest 107 supports NFS
2014-11-03 11:41:48 +00:00
107.out
iotests: Add test for qcow2 L1 table update
2014-10-23 15:34:02 +02:00
108
iotests: Add test for potentially damaging repairs
2014-10-23 15:34:01 +02:00
108.out
iotests: Add test for potentially damaging repairs
2014-10-23 15:34:01 +02:00
109
qemu-iotests: Test writing non-raw image headers to raw image
2014-12-10 10:31:13 +01:00
109.out
qemu-iotests: Test writing non-raw image headers to raw image
2014-12-10 10:31:13 +01:00
111
iotests: Add test for non-existing backing file
2014-11-06 12:45:47 +01:00
111.out
iotests: Add test for non-existing backing file
2014-11-06 12:45:47 +01:00
check
iotests: Use $PYTHON for Python scripts
2014-06-27 20:00:00 +02:00
common
qemu-iotests: Use qemu-io -f $IMGFMT
2014-12-10 10:31:12 +01:00
common.config
tests: Use "command -v" instead of which(1) in shell scripts
2014-12-10 10:31:12 +01:00
common.filter
iotests: _filter_qmp for pretty JSON output
2014-12-10 10:25:30 +01:00
common.pattern
block: qemu-iotests, add quotes to $TEST_IMG usage io pattern tests
2013-11-07 13:53:31 +01:00
common.qemu
qemu-iotests: Fix stderr handling in common.qemu
2014-12-10 10:31:13 +01:00
common.rc
qemu-iotests: Fix 028 reference output for qed
2014-08-20 11:51:28 +02:00
COPYING
…
group
qemu-iotests: Test writing non-raw image headers to raw image
2014-12-10 10:31:13 +01:00
iotests.py
iotests: Omit length/offset test in 040 and 041
2014-11-03 11:41:48 +00:00
Makefile
…
nbd-fault-injector.py
tests: add nbd-fault-injector.py utility
2014-03-14 16:28:28 +01:00
qcow2.py
qcow2: Fix error path for unknown incompatible features
2014-07-18 13:12:15 +01:00
qed.py
…
README
…
socket_scm_helper.c
iotests: Send the correct fd in socket_scm_helper
2014-09-12 10:27:54 +02:00

README 

=== This is the QEMU I/O test suite ===

* Intro

This package contains a simple test suite for the I/O layer of qemu.
It does not require a guest, but only the qemu, qemu-img and qemu-io
binaries.  This does limit it to exercise the low-level I/O path only
but no actual block drivers like ide, scsi or virtio.

* Usage

Just run ./check to run all tests for the raw image format, or ./check
-qcow2 to test the qcow2 image format.  The output of ./check -h explains
additional options to test further image formats or I/O methods.

* Feedback and patches

Please send improvements to the test suite, general feedback or just
reports of failing tests cases to qemu-devel@savannah.nongnu.org.