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Paolo Bonzini f18c69cfc5 exec: avoid possible overwriting of mmaped area in qemu_ram_remap 
It is not necessary to munmap an area before remapping it with MAP_FIXED;
if the memory region specified by addr and len overlaps pages of any
existing mapping, then the overlapped part of the existing mapping will
be discarded.

On the other hand, if QEMU does munmap the pages, there is a small
probability that another mmap sneaks in and catches the just-freed
portion of the address space.  In effect, munmap followed by
mmap(MAP_FIXED) is a use-after-free error, and Coverity flags it
as such.  Fix it.

Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-26 10:43:54 +01:00
audio
audio: Don't free hw resources until after hw backend is stopped
2014-12-22 23:12:25 +00:00
backends
backends: Fix warning from Sparse
2015-03-19 11:11:55 +03:00
block
Block patches for 2.3.0-rc1
2015-03-19 17:47:08 +00:00
bsd-user
cpu: Make cpu_init() return QOM CPUState object
2015-03-10 17:33:51 +01:00
default-configs
hw/usb: Include USB files only if necessary
2015-03-18 11:50:47 +01:00
disas
cris: remove unused cris_cond15 declarations
2015-03-19 11:11:55 +03:00
docs
docs: add memory-hotplug.txt
2015-03-04 13:00:36 -05:00
dtc @ bc895d6d09
…
fpu
softfloat: expand out STATUS macro
2015-02-06 16:11:38 +00:00
fsdev
Fix typos in comments
2015-03-19 11:30:37 +03:00
gdb-xml
…
hw
sparc: memory: Replace memory_region_init_ram with memory_region_allocate_system_memory
2015-03-25 14:36:14 +01:00
include
NUMA queue 2015-03-19
2015-03-20 10:37:03 +00:00
libcacard
libcacard: stop linking against every single 3rd party library
2015-02-10 09:27:20 +03:00
libdecnumber
…
linux-headers
synchronize Linux headers to 4.0-rc3
2015-03-10 09:26:22 +01:00
linux-user
linux-user: fix broken cpu_copy()
2015-03-23 15:26:42 +02:00
migration
migration: Expose 'cancelling' status to user
2015-03-17 15:20:37 +01:00
net
net: synchronize net_host_device_remove with host_net_remove_completion
2015-03-12 19:59:39 +00:00
pc-bios
seabios: update to 1.8.1 stable release
2015-03-16 09:07:15 +01:00
pixman @ 87eea99e44
…
po
…
qapi
block: Fix blockdev-backup not to use funky error class
2015-03-19 16:02:59 +01:00
qga
qga/commands-posix: Fix resource leak
2015-03-19 11:39:18 +03:00
qobject
qjson: Drop trailing space for pretty formatting
2014-12-10 10:25:30 +01:00
qom
qom: Fix warning from Sparse
2015-03-19 11:11:55 +03:00
roms
seabios: update to 1.8.1 stable release
2015-03-16 09:07:15 +01:00
scripts
build: pass .d file name to scripts/make_device_config.sh, fix makefile target
2015-03-18 12:07:25 +01:00
slirp
…
stubs
pci, pc, virtio fixes and cleanups
2015-03-09 09:14:28 +00:00
sysconfigs/target
…
target-alpha
tcg: Change translator-side labels to a pointer
2015-03-13 12:28:18 -07:00
target-arm
target-arm: Ignore low bit of PC in M-profile exception return
2015-03-16 12:30:47 +00:00
target-cris
cris: remove unused cris_cond15 declarations
2015-03-19 11:11:55 +03:00
target-i386
target-i386: Haswell-noTSX and Broadwell-noTSX
2015-03-19 16:35:14 -03:00
target-lm32
tcg: Change translator-side labels to a pointer
2015-03-13 12:28:18 -07:00
target-m68k
tcg: Change translator-side labels to a pointer
2015-03-13 12:28:18 -07:00
target-microblaze
tcg: Change translator-side labels to a pointer
2015-03-13 12:28:18 -07:00
target-mips
trivial patches for 2015-03-19
2015-03-19 14:10:20 +00:00
target-moxie
target-moxie: Fix warnings from Sparse (one-bit signed bitfield)
2015-03-19 11:11:55 +03:00
target-openrisc
tcg: Change translator-side labels to a pointer
2015-03-13 12:28:18 -07:00
target-ppc
tcg: Change translator-side labels to a pointer
2015-03-13 12:28:18 -07:00
target-s390x
Final batch of s390x enhancements/fixes for 2.3:
2015-03-16 11:44:55 +00:00
target-sh4
tcg: Change translator-side labels to a pointer
2015-03-13 12:28:18 -07:00
target-sparc
tcg: Change translator-side labels to a pointer
2015-03-13 12:28:18 -07:00
target-tricore
target-tricore: properly fix dvinit_b/h_13
2015-03-24 09:45:28 +01:00
target-unicore32
tcg: Change translator-side labels to a pointer
2015-03-13 12:28:18 -07:00
target-xtensa
tcg: Change translator-side labels to a pointer
2015-03-13 12:28:18 -07:00
tcg
tcg/optimize: Handle or r,a,a with constant a
2015-03-16 08:46:13 -07:00
tests
rcu tests: fix compilation on 32-bit ppc
2015-03-25 13:37:10 +01:00
trace
Remove superfluous '\n' around error_report()
2015-03-10 08:15:33 +03:00
ui
ui: ensure VNC websockets server checks the ACL if requested
2015-03-18 09:25:14 +01:00
util
util/uri: Add overflow check to rfc3986_parse_port
2015-03-18 12:05:31 +01:00
.exrc
…
.gitignore
gitignore: Track common.env in iotests gitignore
2015-03-10 08:15:34 +03:00
.gitmodules
…
.mailmap
…
.travis.yml
.travis.yml: Add "--enable-modules"
2015-01-26 12:27:05 +01:00
accel.c
…
aio-posix.c
block: Use g_new0() for a bit of extra type checking
2014-12-10 10:31:21 +01:00
aio-win32.c
block: Use g_new0() for a bit of extra type checking
2014-12-10 10:31:21 +01:00
arch_init.c
arch_init: Count the total number of pages by using helper function
2015-03-17 15:20:37 +01:00
async.c
block: replace g_new0 with g_new for bottom half allocation.
2015-01-13 11:47:56 +00:00
balloon.c
balloon: Fix typo
2015-02-23 10:56:09 -05:00
block.c
block: Drop bdrv_find
2015-03-16 12:10:30 -04:00
blockdev-nbd.c
nbd: Fix up comment after commit e140177
2015-03-25 13:38:07 +01:00
blockdev.c
block: Fix blockdev-backup not to use funky error class
2015-03-19 16:02:59 +01:00
blockjob.c
…
bootdevice.c
bootdevice: bug fixes
2015-03-08 06:43:32 +00:00
bt-host.c
…
bt-vhci.c
…
Changelog
…
CODING_STYLE
…
configure
configure: enable kvm on x32
2015-03-19 11:17:27 +03:00
COPYING
…
COPYING.LIB
…
coroutine-gthread.c
…
coroutine-sigaltstack.c
coroutine-sigaltstack: Change jmp_buf to sigjmp_buf
2014-11-11 11:07:55 +03:00
coroutine-ucontext.c
coroutine-ucontext: use __thread
2015-01-13 13:43:28 +00:00
coroutine-win32.c
…
cpu-exec.c
- vhost-scsi: add bootindex property
2015-02-24 13:58:18 +00:00
cpus.c
cpus: Don't kick un-realized cpus.
2015-03-25 13:38:07 +01:00
cputlb.c
exec: RCUify AddressSpaceDispatch
2015-02-16 17:30:19 +01:00
device_tree.c
machine: query phandle-start machine property
2015-03-11 18:17:11 +01:00
device-hotplug.c
pci-hotplug-old: Has been dead for five major releases, bury
2015-03-01 12:37:54 +01:00
disas.c
…
dma-helpers.c
…
dump.c
…
exec.c
exec: avoid possible overwriting of mmaped area in qemu_ram_remap
2015-03-26 10:43:54 +01:00
gdbstub.c
gdbstub: avoid possible NULL pointer dereference
2015-03-10 08:15:34 +03:00
HACKING
…
hmp-commands.hx
hmp: Fix texinfo documentation
2015-03-19 11:35:52 +03:00
hmp.c
migration/next for 20150317
2015-03-17 17:11:33 +00:00
hmp.h
qom: Implement qom-set HMP command
2015-03-17 14:31:15 +01:00
iohandler.c
…
ioport.c
…
iothread.c
…
kvm-all.c
kvm: fix ioeventfd endianness on bi-endian architectures
2015-03-18 12:07:30 +01:00
kvm-stub.c
pc: kvm: check if KVM has free memory slots to avoid abort()
2014-11-23 12:11:29 +02:00
LICENSE
vfio: move hw/misc/vfio.c to hw/vfio/pci.c Move vfio.h into include/hw/vfio
2014-12-19 15:24:06 -07:00
main-loop.c
…
MAINTAINERS
misc fixes and cleanups
2015-03-12 09:13:07 +00:00
Makefile
build: pass .d file name to scripts/make_device_config.sh, fix makefile target
2015-03-18 12:07:25 +01:00
Makefile.objs
QJSON: Add JSON writer
2015-02-05 17:16:14 +01:00
Makefile.target
Makefile.target: binary depends on config-devices
2015-03-01 19:41:50 +01:00
memory_mapping.c
…
memory.c
memory: Move owner-less MemoryRegions to /machine/unattached
2015-03-17 14:31:26 +01:00
module-common.c
…
monitor.c
usb: bugfix collection.
2015-03-20 09:50:08 +00:00
nbd.c
nbd: Drop unexpected data for NBD_OPT_LIST
2015-03-18 12:07:16 +01:00
numa.c
numa: Print warning if no node is assigned to a CPU
2015-03-19 16:20:15 -03:00
os-posix.c
…
os-win32.c
…
page_cache.c
xbzrle: rebuild the cache_is_cached function
2015-01-15 17:49:43 +05:30
qapi-schema.json
migration: Convert 'status' of MigrationInfo to use an enum type
2015-03-17 15:20:37 +01:00
qdev-monitor.c
qom: Implement info qom-tree HMP command
2015-03-17 14:31:21 +01:00
qdict-test-data.txt
…
qemu-bridge-helper.c
…
qemu-char.c
qemu-img: Suppress unhelpful extra errors in convert, amend
2015-02-26 14:51:21 +01:00
qemu-coroutine-io.c
coroutine-io: Return -errno in case of error
2015-03-18 12:07:21 +01:00
qemu-coroutine-lock.c
…
qemu-coroutine-sleep.c
…
qemu-coroutine.c
coroutine: Clean up qemu_coroutine_enter()
2015-03-09 11:11:59 +01:00
qemu-doc.texi
raw-posix: Deprecate host floppy passthrough
2015-03-19 11:43:02 +01:00
qemu-img-cmds.hx
…
qemu-img.c
qemu-img: Avoid qerror_report_err() outside QMP handlers, again
2015-03-16 17:07:25 +01:00
qemu-img.texi
…
qemu-io-cmds.c
qemu-io: Use BlockBackend
2015-02-16 15:07:19 +00:00
qemu-io.c
Clean up around error_get_pretty(), qerror_report_err()
2015-02-26 07:01:08 +00:00
qemu-log.c
qemu-log: Correct help text of 'log cpu_reset'
2015-02-10 09:27:20 +03:00
qemu-nbd.c
nbd: Set block size to BDRV_SECTOR_SIZE
2015-03-18 12:07:01 +01:00
qemu-nbd.texi
…
qemu-options-wrapper.h
…
qemu-options.h
…
qemu-options.hx
Block patches for 2.3.0-rc1
2015-03-19 17:47:08 +00:00
qemu-seccomp.c
seccomp: add mlockall to whitelist
2015-01-23 14:07:08 +01:00
qemu-tech.texi
…
qemu-timer.c
qemu-timer.c: Trim list of included headers
2015-01-26 18:15:54 +00:00
qemu.nsi
…
qemu.sasl
…
qjson.c
QJSON: fix typo in author's email address
2015-02-10 09:27:20 +03:00
qmp-commands.hx
Block patches for 2.3.0-rc1
2015-03-19 17:47:08 +00:00
qmp.c
vnc: set id at parse time not init time
2015-03-10 11:33:35 +01:00
qtest.c
qtest: Use qemu_opt_set() instead of qemu_opts_parse()
2015-02-26 14:52:13 +01:00
README
…
rules.mak
rules.mak: Fix module build
2015-01-14 10:38:57 +01:00
savevm.c
error: Replace error_report() & error_free() with error_report_err()
2015-03-19 11:11:55 +03:00
softmmu_template.h
exec: make iotlb RCU-friendly
2015-02-16 17:30:19 +01:00
spice-qemu-char.c
spice: Add missing 'static' attribute
2015-02-10 10:26:05 +03:00
tcg-runtime.c
…
tci.c
tcg: Remove unused opcodes
2015-02-12 21:21:38 -08:00
thread-pool.c
…
thunk.c
…
tpm.c
tpm: Remove superfluous '\n' around error_report()
2015-03-10 08:15:33 +03:00
trace-events
s390x/kvm: trace all SIGP orders
2015-03-10 09:26:22 +01:00
translate-all.c
translate-all: Use g_try_malloc() for dynamic translator buffer
2015-02-10 09:27:21 +03:00
translate-all.h
…
user-exec.c
user-exec.c: fix build on NetBSD/sparc64 and NetBSD/arm
2015-03-13 15:57:00 +00:00
VERSION
Update version for v2.3.0-rc0 release
2015-03-17 18:58:33 +00:00
version.rc
…
vl.c
numa: introduce machine callback for VCPU to node mapping
2015-03-19 16:12:09 -03:00
xen-common-stub.c
…
xen-common.c
…
xen-hvm-stub.c
xen: Remove xen_cmos_set_s3_resume()
2015-03-10 08:15:33 +03:00
xen-hvm.c
Xen: Use the ioreq-server API when available
2015-01-20 14:24:10 +00:00
xen-mapcache.c
xen: add a lock for the mapcache
2015-01-20 14:24:17 +00:00

README 

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

- QEMU team
Description
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Readme 404 MiB
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