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Stefan Hajnoczi 39ba3bf69c qcow2: fix new_blocks double-free in alloc_refcount_block() 
Commit de82815db1 ("qcow2: Handle failure
for potentially large allocations") introduced a double-free of
new_blocks in the alloc_refcount_block() error path.

The qemu-iotests qcow2 026 test case was failing because qemu-io
segfaulted.

Make sure new_blocks is NULL after we free it the first time.

Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15 18:03:26 +01:00
audio
audio: Drop superfluous conditionals around g_free()
2014-06-13 12:34:54 +02:00
backends
backends: Introduce chr-testdev
2014-08-06 17:53:05 +02:00
block
qcow2: fix new_blocks double-free in alloc_refcount_block()
2014-08-15 18:03:26 +01:00
bsd-user
bsd-user: Fix syscall format, add strace support for more syscalls
2014-06-11 00:25:06 +01:00
default-configs
pc: implement pc-dimm device abstraction
2014-06-19 16:41:47 +03:00
disas
disas/libvixl: prepend the include path of libvixl header files
2014-07-08 12:45:57 +01:00
docs
docs: Expand the list of supported image elements with L1/L2 tables
2014-08-15 18:03:14 +01:00
dtc @ bc895d6d09
…
fpu
fpu: softfloat: drop INLINE macro
2014-06-23 11:00:12 -04:00
fsdev
virtfs-proxy-helper: fix call to accept
2014-04-28 08:55:32 +04:00
gdb-xml
target-arm: Support fp registers in gdb stub
2013-12-17 19:42:32 +00:00
hw
ide: only constrain read/write requests to drive size, not other types
2014-08-15 18:03:14 +01:00
include
Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging
2014-08-15 16:37:17 +01:00
libcacard
vscclient: Add required headers to fix build on FreeBSD
2014-06-24 20:01:24 +04:00
libdecnumber
libdecnumber: Fix decNumberSetBCD
2014-06-16 13:24:29 +02:00
linux-headers
linux-headers: update linux headers to kvm/next
2014-06-16 13:24:41 +02:00
linux-user
linux-user: use TARGET_SA_ONSTACK in get_sigframe
2014-07-15 17:08:41 +03:00
net
tap-bsd: implement a FreeBSD only version of tap_open
2014-08-01 15:57:48 +00:00
pc-bios
pc-bios/s390-ccw: update binary
2014-07-08 15:08:03 +02:00
pixman @ 97336fad32
…
po
po: Add Chinese translation
2014-08-09 00:06:41 +04:00
qapi
QMP: Add support for Archipelago
2014-08-15 15:07:14 +02:00
qga
channel-posix: using qemu_set_nonblock() instead of fcntl(O_NONBLOCK)
2014-08-15 18:03:13 +01:00
qobject
json-lexer: fix escaped backslash in single-quoted string
2014-06-23 11:01:24 -04:00
qom
qom: object: Ignore refs/unrefs of NULL
2014-07-01 10:20:41 +02:00
roms
pseries: Update SLOF firmware image to qemu-slof-20140630
2014-07-08 12:10:36 +02:00
scripts
trace: teach lttng backend to use format strings
2014-08-12 14:26:12 +01:00
slirp
Increase maximum number of session of the internal TFTP server.
2014-06-24 20:01:24 +04:00
stubs
backends: Introduce chr-testdev
2014-08-06 17:53:05 +02:00
sysconfigs/target
…
target-alpha
trace: [tcg] Include TCG-tracing header on all targets
2014-08-12 14:26:12 +01:00
target-arm
trace: [tcg] Include TCG-tracing header on all targets
2014-08-12 14:26:12 +01:00
target-cris
trace: [tcg] Include TCG-tracing header on all targets
2014-08-12 14:26:12 +01:00
target-i386
Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging
2014-08-15 16:37:17 +01:00
target-lm32
trace: [tcg] Include TCG-tracing header on all targets
2014-08-12 14:26:12 +01:00
target-m68k
trace: [tcg] Include TCG-tracing header on all targets
2014-08-12 14:26:12 +01:00
target-microblaze
trace: [tcg] Include TCG-tracing header on all targets
2014-08-12 14:26:12 +01:00
target-mips
trace: [tcg] Include TCG-tracing header on all targets
2014-08-12 14:26:12 +01:00
target-moxie
softmmu: introduce cpu_ldst.h
2014-06-05 16:10:33 +02:00
target-openrisc
trace: [tcg] Include TCG-tracing header on all targets
2014-08-12 14:26:12 +01:00
target-ppc
trace: [tcg] Include TCG-tracing header on all targets
2014-08-12 14:26:12 +01:00
target-s390x
trace: [tcg] Include TCG-tracing header on all targets
2014-08-12 14:26:12 +01:00
target-sh4
trace: [tcg] Include TCG-tracing header on all targets
2014-08-12 14:26:12 +01:00
target-sparc
trace: [tcg] Include TCG-tracing header on all targets
2014-08-12 14:26:12 +01:00
target-unicore32
trace: [tcg] Include TCG-tracing header on all targets
2014-08-12 14:26:12 +01:00
target-xtensa
trace: [tcg] Include TCG-tracing header on all targets
2014-08-12 14:26:12 +01:00
tcg
tcg/ppc: Fix support for 64-bit PPC MacOSX hosts
2014-06-29 11:38:50 +01:00
tests
image-fuzzer: Reduce number of generator functions in __init__
2014-08-15 18:03:14 +01:00
trace
trace: [tcg] Generate TCG tracing routines
2014-08-12 14:26:12 +01:00
ui
vnc update fix
2014-07-25 09:43:31 +02:00
util
block: Introduce qemu_try_blockalign()
2014-08-15 15:07:15 +02:00
.exrc
…
.gitignore
trace: [tcg] Generate TCG tracing routines
2014-08-12 14:26:12 +01:00
.gitmodules
PPC: Add u-boot firmware for e500
2014-06-16 13:24:35 +02:00
.mailmap
…
.travis.yml
trace: Multi-backend tracing
2014-06-09 15:43:40 +02:00
aio-posix.c
AioContext: speed up aio_notify
2014-07-09 15:50:11 +02:00
aio-win32.c
block: drop aio functions that operate on the main AioContext
2014-07-09 15:50:11 +02:00
arch_init.c
Show length mismatch error is hex
2014-08-09 00:06:32 +04:00
async.c
AioContext: speed up aio_notify
2014-07-09 15:50:11 +02:00
balloon.c
qapi event: convert BALLOON_CHANGE
2014-06-23 11:12:28 -04:00
block-migration.c
block: Use bdrv_nb_sectors() where sectors, not bytes are wanted
2014-08-15 15:07:13 +02:00
block.c
block: Catch !bs->drv in bdrv_check()
2014-08-15 15:07:16 +02:00
blockdev-nbd.c
nbd: Shutdown socket before closing.
2014-06-30 12:50:12 +02:00
blockdev.c
block: add backing-file option to block-stream
2014-07-01 10:47:01 +02:00
blockjob.c
block: prefer aio_poll to qemu_aio_wait
2014-07-09 15:50:11 +02:00
bt-host.c
…
bt-vhci.c
…
Changelog
…
CODING_STYLE
CODING_STYLE: Section about mixed declarations
2014-03-27 19:22:49 +04:00
configure
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
2014-08-15 14:49:50 +01:00
COPYING
…
COPYING.LIB
…
coroutine-gthread.c
glib-compat.h: add new thread API emulation on top of pre-2.31 API
2014-06-10 07:44:01 +02:00
coroutine-sigaltstack.c
…
coroutine-ucontext.c
…
coroutine-win32.c
coroutine-win32.c: Add noinline attribute to work around gcc bug
2014-06-26 14:08:14 +01:00
cpu-exec.c
trace: add some tcg tracing support
2014-08-12 14:26:12 +01:00
cpus.c
monitor: Add drift info to 'info jit'
2014-08-07 15:09:48 +02:00
cputlb.c
softmmu: introduce cpu_ldst.h
2014-06-05 16:10:33 +02:00
device_tree.c
device_tree: qemu_fdt_setprop: Rename val_array arg
2013-12-20 01:58:12 +01:00
device-hotplug.c
blockdev: Remove unused DriveInfo reference count
2014-06-16 17:23:19 +08:00
disas.c
monitor: QEMU Monitor Instruction Disassembly Incorrect for PowerPC LE Mode
2014-06-16 13:24:26 +02:00
dma-helpers.c
dma-helpers: Fix too long qiov
2014-07-14 12:03:21 +02:00
dump.c
dump: Make DumpState and endian conversion routines available for arch-specific dump code
2014-06-16 13:24:36 +02:00
exec.c
exec: fix migration with devices that use address_space_rw
2014-07-22 10:38:50 +02:00
gdbstub.c
exec: Change cpu_breakpoint_{insert,remove{,_by_ref,_all}} argument
2014-03-13 19:20:48 +01:00
HACKING
…
hmp-commands.hx
Add the vhost-user netdev backend to the command line
2014-06-19 18:44:18 +03:00
hmp.c
block: add backing-file option to block-stream
2014-07-01 10:47:01 +02:00
hmp.h
hmp: add info memdev
2014-06-19 18:44:21 +03:00
iohandler.c
iohandler.c: Properly initialize sigaction struct
2014-05-24 00:07:29 +04:00
ioport.c
…
iothread.c
AioContext: do not rely on aio_poll(ctx, true) result to end a loop
2014-07-14 12:03:20 +02:00
kvm-all.c
kvm-all: Use 'tmpcpu' instead of 'cpu' in sub-looping to avoid 'cpu' be NULL
2014-07-22 12:38:17 +02:00
kvm-stub.c
Add kvm_eventfds_enabled function
2014-06-19 16:41:54 +03:00
LICENSE
…
main-loop.c
block: drop aio functions that operate on the main AioContext
2014-07-09 15:50:11 +02:00
MAINTAINERS
block: Support Archipelago as a QEMU block backend
2014-08-15 15:07:14 +02:00
Makefile
Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging
2014-08-15 16:37:17 +01:00
Makefile.objs
Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging
2014-08-15 16:37:17 +01:00
Makefile.target
trace: [tcg] Define TCG tracing helper routines
2014-08-12 14:26:12 +01:00
memory_mapping.c
…
memory.c
memory: MemoryRegion: Add size property
2014-07-01 10:20:41 +02:00
migration-exec.c
…
migration-fd.c
…
migration-rdma.c
rdma: bug fixes
2014-06-23 19:09:50 +02:00
migration-tcp.c
Coverity: Fix failure path for qemu_accept in migration
2014-05-05 22:15:03 +02:00
migration-unix.c
Coverity: Fix failure path for qemu_accept in migration
2014-05-05 22:15:03 +02:00
migration.c
migration: catch unknown flags in ram_load
2014-06-16 04:55:27 +02:00
module-common.c
module: implement module loading
2014-02-20 13:14:18 +01:00
monitor.c
monitor: Add drift info to 'info jit'
2014-08-07 15:09:48 +02:00
nbd.c
nbd: Handle NBD_OPT_LIST option.
2014-06-30 12:50:17 +02:00
numa.c
numa: check for busy memory backend
2014-07-06 09:13:53 +03:00
os-posix.c
oslib-posix: Fix build on FreeBSD
2014-03-13 14:34:16 +00:00
os-win32.c
util: Split out exec_dir from os_find_datadir
2014-02-20 13:12:54 +01:00
page_cache.c
migration: Plug memory leak in migrate-set-cache-size command
2014-06-10 19:54:43 +04:00
qapi-schema.json
backends: Introduce chr-testdev
2014-08-06 17:53:05 +02:00
qdev-monitor.c
qdev-monitor: include QOM properties in -device FOO, help output
2014-08-15 15:07:13 +02:00
qdict-test-data.txt
…
qemu-bridge-helper.c
qemu-bridge-helper: Fix fd leak in main()
2014-06-27 10:39:10 +02:00
qemu-char.c
qemu-char: using qemu_set_nonblock() instead of fcntl(O_NONBLOCK)
2014-08-15 18:03:13 +01:00
qemu-coroutine-io.c
…
qemu-coroutine-lock.c
…
qemu-coroutine-sleep.c
…
qemu-coroutine.c
coroutine: make pool size dynamic
2014-08-15 15:07:14 +02:00
qemu-doc.texi
doc: slirp supports ICMP echo if enabled in Linux
2014-07-18 17:45:37 +04:00
qemu-file.c
Make qemu_peek_buffer loop until it gets it's data
2014-05-05 22:15:03 +02:00
qemu-img-cmds.hx
…
qemu-img.c
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
2014-08-15 14:49:50 +01:00
qemu-img.texi
Fix nocow typos in manpage
2014-07-07 09:15:29 +02:00
qemu-io-cmds.c
block: prefer aio_poll to qemu_aio_wait
2014-07-09 15:50:11 +02:00
qemu-io.c
trace: Multi-backend tracing
2014-06-09 15:43:40 +02:00
qemu-log.c
…
qemu-nbd.c
nbd: Shutdown socket before closing.
2014-06-30 12:50:12 +02:00
qemu-nbd.texi
nbd: Miscellaneous typo fixes.
2014-05-24 00:07:29 +04:00
qemu-options-wrapper.h
…
qemu-options.h
…
qemu-options.hx
qemu-options: add missing -drive discard option to cmdline help
2014-08-15 18:03:13 +01:00
qemu-seccomp.c
seccomp: add shmctl(), mlock(), and munlock() to the syscall whitelist
2014-04-25 14:52:03 -03:00
qemu-tech.texi
…
qemu-timer.c
vl.c: remove init_clocks call from main
2014-05-09 20:57:32 +02:00
qemu.nsi
…
qemu.sasl
sasl: Avoid 'Could not find keytab file' in syslog
2014-03-15 13:54:18 +04:00
qmp-commands.hx
block: add backing-file option to block-stream
2014-07-01 10:47:01 +02:00
qmp.c
qmp: hide "hotplugged" device property from device-list-properties
2014-08-15 15:07:13 +02:00
qtest.c
icount: Add QemuOpts for icount
2014-08-06 17:53:07 +02:00
README
…
rules.mak
build-sys: introduce install-prog macro to install&strip binaries and use it
2014-06-24 20:01:24 +04:00
savevm.c
savevm: check vmsd for migratability status
2014-06-25 23:54:57 +02:00
softmmu_template.h
softmmu: move softmmu_template.h out of include/
2014-06-05 16:10:33 +02:00
spice-qemu-char.c
qemu-char: introduce qemu_chr_alloc
2014-06-23 11:12:28 -04:00
tcg-runtime.c
tcg: Push tcg-runtime routines into exec/helper-*
2014-05-28 09:33:54 -07:00
tci.c
Merge remote-tracking branch 'remotes/bonzini/softmmu-smap' into staging
2014-06-05 21:06:14 +01:00
thread-pool.c
thread-pool: avoid deadlock in nested aio_poll() calls
2014-08-15 15:07:14 +02:00
thunk.c
…
tpm.c
Use error_is_set() only when necessary
2014-02-17 11:57:23 -05:00
trace-events
virtio-rng: add some trace events
2014-08-12 14:29:55 +01:00
translate-all.c
trace: add some tcg tracing support
2014-08-12 14:26:12 +01:00
translate-all.h
translate-all: Change tb_check_watchpoint() argument to CPUState
2014-03-13 19:20:48 +01:00
user-exec.c
softmmu: introduce cpu_ldst.h
2014-06-05 16:10:33 +02:00
VERSION
Open 2.2 development tree
2014-08-01 18:30:08 +01:00
version.rc
…
vl.c
icount: Add align option to icount
2014-08-06 17:53:07 +02:00
vmstate.c
vmstate: Add preallocation for migrating arrays (VMS_ALLOC flag)
2014-06-27 13:48:27 +02:00
xbzrle.c
xbzrle.c: Avoid undefined behaviour with signed arithmetic
2014-04-18 10:33:36 +04:00
xen-common-stub.c
xen: factor out common functions
2014-05-07 16:16:43 +00:00
xen-common.c
xen: factor out common functions
2014-05-07 16:16:43 +00:00
xen-hvm-stub.c
xen-hvm: Fix xen_hvm_init() to adjust pc memory layout
2014-06-23 17:50:04 +03:00
xen-hvm.c
xen: fix usage of ENODATA
2014-08-01 15:57:28 +00:00
xen-mapcache.c
xen: build on ARM
2014-07-07 10:37:40 +00:00

README 

Read the documentation in qemu-doc.html or on http://wiki.qemu-project.org

- QEMU team
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Description
Original Xbox Emulator for Windows, macOS, and Linux (Active Development)
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