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Kevin Wolf da15ee5134 block: Catch integer overflow in bdrv_rw_co() 
Insanely large requests could cause an integer overflow in
bdrv_rw_co() while converting sectors to bytes. This patch catches the
problem and returns an error (if we hadn't overflown the integer here,
bdrv_check_byte_request() would have rejected the request, so we're not
breaking anything that was supposed to work before).

We actually do have a test case that triggers behaviour where we
accidentally let such a request pass, so that it would return success,
but read 0 bytes instead of the requested 4 GB. It fails now like it
should.

If the vdi block driver wants to be able to deal with huge images, it
can't read the whole block bitmap at once into memory like it does
today, but needs to use a metadata cache like qcow2 does.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
 		2014-04-22 11:57:02 +02:00
..
acpi-test-data acpi-test: update expected files 2014-04-14 15:13:27 +03:00
libqos tests/libqos/pci-pc: Avoid shifting left into sign bit 2014-03-27 19:22:49 +04:00
multiboot
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qapi-schema qapi script: do not allow string discriminator 2014-03-11 09:07:42 -04:00
qemu-iotests block: Catch integer overflow in bdrv_rw_co() 2014-04-22 11:57:02 +02:00
tcg tests: Fix 'make test' for i686 hosts (build regression) 2014-03-15 13:54:18 +04:00
.gitignore tests/.gitignore: Ignore tests/check-qom-interface 2014-02-01 13:56:31 +04:00
Makefile tests: Update check-clean rule 2014-04-07 18:33:22 +02:00
acpi-test.c tests/acpi-test: do not fail if iasl is broken 2014-03-24 12:37:36 +02:00
blockdev-test.c
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boot-order-test.c
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check-block.sh
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check-qdict.c check-qdict: Test termination of qdict_array_split() 2014-02-21 22:18:26 +01:00
check-qfloat.c
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check-qint.c
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check-qjson.c
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check-qlist.c
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check-qom-interface.c
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check-qstring.c
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e1000-test.c tests: Add e1000 qtest 2014-02-14 16:22:33 +01:00
eepro100-test.c tests: Add eepro100 qtest 2014-02-14 16:22:33 +01:00
endianness-test.c qtest: Include system headers before user headers 2014-02-17 23:10:02 +01:00
fdc-test.c
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fw_cfg-test.c qtest: Include system headers before user headers 2014-02-17 23:10:02 +01:00
hd-geo-test.c
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i440fx-test.c QOM infrastructure fixes and device conversions 2014-02-20 13:05:48 +00:00
i82801b11-test.c tests: Add i82801b11 qtest 2014-03-31 22:36:17 +02:00
ide-test.c
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ipoctal232-test.c tests: Add ipoctal232 qtest 2014-02-14 21:07:13 +01:00
libqtest.c qtest: Factor out qtest_qmp_receive() 2014-03-31 22:36:16 +02:00
libqtest.h qtest: Factor out qtest_qmp_receive() 2014-03-31 22:36:16 +02:00
m48t59-test.c qtest: Include system headers before user headers 2014-02-17 23:10:02 +01:00
ne2000-test.c tests: Add ne2000 qtest 2014-02-14 20:50:19 +01:00
nvme-test.c tests: Add nvme qtest 2014-03-31 22:35:03 +02:00
pcnet-test.c tests: Add pcnet qtest 2014-02-14 16:22:33 +01:00
pvpanic-test.c pvpanic-test: Assert pause event 2014-03-31 22:36:17 +02:00
qdev-monitor-test.c qdev-monitor-test: Don't test human-readable error message 2014-03-12 20:13:02 +01:00
qemu-iotests-quick.sh qemu-iotests: add more tests to the "quick" group 2014-02-28 18:59:06 +01:00
qom-test.c qom-test: Test QOM properties 2014-03-13 01:21:45 +01:00
rtc-test.c qtest: Include system headers before user headers 2014-02-17 23:10:02 +01:00
rtl8139-test.c tests: Add rtl8139 qtest 2014-02-14 16:22:33 +01:00
spapr-phb-test.c tests: Add spapr-pci-host-bridge qtest 2014-03-13 01:21:57 +01:00
test-aio.c tests: Remove unsupported tests for MinGW 2014-03-31 22:35:02 +02:00
test-bitops.c
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test-coroutine.c
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test-cutils.c
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test-hbitmap.c
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test-int128.c tests/test-int128: Don't use __noclone__ attribute on clang 2014-03-02 17:20:37 +04:00
test-iov.c
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test-mul64.c
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test-opts-visitor.c
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test-qdev-global-props.c
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test-qmp-commands.c tests: test-qmp-commands: Fix double free 2014-03-11 09:07:42 -04:00
test-qmp-input-strict.c qapi script: do not allow string discriminator 2014-03-11 09:07:42 -04:00
test-qmp-input-visitor.c qapi script: do not allow string discriminator 2014-03-11 09:07:42 -04:00
test-qmp-output-visitor.c qapi script: do not allow string discriminator 2014-03-11 09:07:42 -04:00
test-rfifolock.c rfifolock: add recursive FIFO lock 2014-03-13 14:42:21 +01:00
test-string-input-visitor.c Use error_is_set() only when necessary 2014-02-17 11:57:23 -05:00
test-string-output-visitor.c QOM infrastructure fixes and device conversions 2014-02-20 13:05:48 +00:00
test-thread-pool.c
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test-throttle.c
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test-visitor-serialization.c tests/qapi-schema: Cover complex types with base 2014-03-03 11:16:45 -05:00
test-vmstate.c
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test-x86-cpuid.c
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test-xbzrle.c
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tmp105-test.c tmp105-test: Test QOM property and precision 2014-03-31 23:03:14 +02:00
tpci200-test.c tests: Add tpci200 qtest 2014-02-14 21:02:27 +01:00
virtio-9p-test.c tests: Add virtio-9p qtest 2014-03-31 22:35:50 +02:00
virtio-balloon-test.c tests: Add virtio-balloon qtest 2014-03-13 01:21:56 +01:00
virtio-blk-test.c tests: Add virtio-blk qtest 2014-03-13 01:21:56 +01:00
virtio-console-test.c virtio-console-test: Test virtserialport as well 2014-03-13 21:12:07 +01:00
virtio-net-test.c tests: Add virtio-net qtest 2014-02-14 21:01:03 +01:00
virtio-rng-test.c tests: Add virtio-rng qtest 2014-03-13 01:21:56 +01:00
virtio-scsi-test.c tests: Add virtio-scsi qtest 2014-03-13 01:21:56 +01:00
virtio-serial-test.c tests: Add virtio-serial qtest 2014-03-13 01:21:57 +01:00
vmxnet3-test.c tests: Add vmxnet3 qtest 2014-02-14 16:22:33 +01:00