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fangying 7cec2ed9d7 xhci: Fix memory leak in xhci_kick_epctx
Address Sanitizer shows memory leak in xhci_kick_epctx hw/usb/hcd-xhci.c:1912.
A sglist is leaked when a packet is retired and returns USB_RET_NAK status.
The leak stack is as bellow:

Direct leak of 2688 byte(s) in 168 object(s) allocated from:
    #0 0xffffae8b11db in __interceptor_malloc (/lib64/libasan.so.4+0xd31db)
    #1 0xffffae5c9163 in g_malloc (/lib64/libglib-2.0.so.0+0x57163)
    #2 0xaaaabb6fb3f7 in qemu_sglist_init dma-helpers.c:43
    #3 0xaaaabba705a7 in pci_dma_sglist_init include/hw/pci/pci.h:837
    #4 0xaaaabba705a7 in xhci_xfer_create_sgl hw/usb/hcd-xhci.c:1443
    #5 0xaaaabba705a7 in xhci_setup_packet hw/usb/hcd-xhci.c:1615
    #6 0xaaaabba77a6f in xhci_kick_epctx hw/usb/hcd-xhci.c:1912
    #7 0xaaaabbdaad27 in timerlist_run_timers util/qemu-timer.c:592
    #8 0xaaaabbdab19f in qemu_clock_run_timers util/qemu-timer.c:606
    #9 0xaaaabbdab19f in qemu_clock_run_all_timers util/qemu-timer.c:692
    #10 0xaaaabbdab9a3 in main_loop_wait util/main-loop.c:524
    #11 0xaaaabb6ff5e7 in main_loop vl.c:1806
    #12 0xaaaabb1e1453 in main vl.c:4488

Signed-off-by: Ying Fang <fangying1@huawei.com>
Message-id: 20190828062535.1573-1-fangying1@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-08-29 07:30:04 +02:00
accel Monitor patches for 2019-08-21 2019-08-22 10:31:21 +01:00
audio audio: fix memory leak reported by ASAN 2019-08-21 09:13:37 +02:00
authz Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
backends Include sysemu/sysemu.h a lot less 2019-08-16 13:31:53 +02:00
block vpc: Do not return RAW from block_status 2019-08-19 17:13:26 +02:00
bsd-user Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
capstone@22ead3e0bf disas: Add capstone as submodule 2017-10-26 11:56:20 +02:00
chardev char-socket: Lock tcp_chr_disconnect() and socket_reconnect_timeout() 2019-08-21 16:31:59 +02:00
contrib contrib/elf2dmp: Build download.o with CURL_CFLAGS 2019-07-22 14:07:39 +01:00
crypto crypto: use auto cleanup for many stack variables 2019-08-22 10:56:57 +01:00
default-configs MIPS queue for July 2nd, 2019 2019-07-03 21:19:03 +01:00
disas ppc: Add support for 'mffsl' instruction 2019-08-21 17:17:39 +10:00
docs Monitor patches for 2019-08-21 2019-08-22 10:31:21 +01:00
dtc@88f18909db Update dtc/libfdt submodule to v1.4.7 2018-10-02 13:53:26 +10:00
dump sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
fpu fpu: rename softfloat-specialize.h -> .inc.c 2019-08-19 12:07:13 +01:00
fsdev 9p: simplify source file selection 2019-08-20 17:26:19 +02:00
gdb-xml RISC-V: Add 64-bit gdb xml files. 2019-03-19 05:13:24 -07:00
hw xhci: Fix memory leak in xhci_kick_epctx 2019-08-29 07:30:04 +02:00
include xen: Fix ring.h header 2019-08-27 14:18:28 +01:00
io main-loop: Fix GSource leak in qio_task_thread_worker() 2019-08-21 16:31:58 +02:00
libdecnumber build: remove CONFIG_LIBDECNUMBER 2017-10-16 18:03:52 +02:00
linux-headers linux-headers: sync with latest KVM headers from Linux 5.2 2019-06-21 13:23:47 +02:00
linux-user target/mips: rationalise softfloat includes 2019-08-19 12:07:13 +01:00
migration memory: fix race between TCG and accesses to dirty bitmap 2019-08-20 17:26:20 +02:00
monitor Monitor patches for 2019-08-21 2019-08-22 10:31:21 +01:00
nbd block/dirty-bitmap: add bdrv_dirty_bitmap_get 2019-08-16 16:28:02 -04:00
net sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
pc-bios pseries: Update SLOF firmware image 2019-08-21 17:17:26 +10:00
po po/Makefile: Modern shell scripting (use $() instead of ``) 2018-10-24 07:39:10 +01:00
python/qemu iotests: Add @has_quit to vm.shutdown() 2019-07-19 13:19:17 +02:00
qapi curses: assert get_wch return value is okay 2019-08-22 14:16:42 +01:00
qga Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
qobject json: Move switch 'fall through' comment to correct place 2019-08-21 10:54:31 +02:00
qom hw/core: Move cpu.c, cpu.h from qom/ to hw/core/ 2019-08-21 13:24:01 +02:00
replay audio: second batch of -audiodev support, adding support for multiple backends. 2019-08-21 15:18:50 +01:00
roms pseries: Update SLOF firmware image 2019-08-21 17:17:26 +10:00
scripts minikconf: don't print CONFIG_FOO=n lines 2019-08-21 16:29:57 +02:00
scsi iscsi: base all handling of check condition on scsi_sense_to_errno 2019-07-15 11:20:42 +02:00
slirp@126c04acba slirp: update with CVE-2019-14378 fix 2019-08-02 15:14:56 +04:00
stubs sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
target target/alpha: fix tlb_fill trap_arg2 value for instruction fetch 2019-08-25 12:30:48 -07:00
tcg configure: Define target access alignment in configure 2019-08-20 17:26:19 +02:00
tests modules-test: ui-spice-app is not built as module 2019-08-23 14:07:00 +01:00
trace hw/core: Move cpu.c, cpu.h from qom/ to hw/core/ 2019-08-21 13:24:01 +02:00
ui curses: assert get_wch return value is okay 2019-08-22 14:16:42 +01:00
util Pull request 2019-08-23 16:11:35 +01:00
.cirrus.yml cirrus / travis: Add gnu-sed and bash for macOS and FreeBSD 2019-05-21 10:12:47 +02:00
.dir-locals.el Add .dir-locals.el file to configure emacs coding style 2015-10-08 19:46:01 +03:00
.editorconfig editorconfig: add setting for shell scripts 2019-06-12 17:53:22 +01:00
.exrc qemu: add .exrc 2012-09-07 09:02:44 +03:00
.gdbinit .gdbinit: load QEMU sub-commands when gdb starts 2017-06-07 14:38:45 +01:00
.gitignore .gitignore: ignore some vhost-user* related files 2019-08-21 10:40:41 +02:00
.gitlab-ci.yml gitlab-ci: Remove qcow2 tests that are handled by "make check" already 2019-08-17 09:06:17 +02:00
.gitmodules roms: Add OpenSBI version 0.4 2019-07-18 14:18:43 -07:00
.gitpublish Add a git-publish configuration file 2018-03-05 09:03:17 +00:00
.mailmap maint: Grammar fix to mailmap 2018-12-11 18:35:54 +01:00
.patchew.yml ci: store Patchew configuration in the tree 2019-06-03 14:03:02 +02:00
.shippable.yml shippable: re-enable the windows cross builds 2019-07-23 15:53:25 +01:00
.travis.yml travis: enable travis_retry for check phase 2019-07-23 15:53:25 +01:00
arch_init.c qapi: Move query-target from misc.json to machine.json 2019-08-21 13:24:01 +02:00
balloon.c Clean up inclusion of exec/cpu-common.h 2019-08-16 13:31:52 +02:00
block.c block: Add bdrv_has_zero_init_truncate() 2019-08-19 17:13:26 +02:00
blockdev-nbd.c Clean up inclusion of sysemu/sysemu.h 2019-08-16 13:31:53 +02:00
blockdev.c mirror: Fix bdrv_has_zero_init() use 2019-08-19 17:13:26 +02:00
blockjob.c Block layer patches: 2019-08-16 16:43:46 +01:00
bootdevice.c fw_cfg: ignore suffixes in the bootdevice list dependent on machine class 2018-08-16 22:27:43 -03:00
bt-host.c all: Clean up includes 2016-02-04 17:41:30 +00:00
bt-vhci.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
Changelog Use HTTPS for qemu.org and other domains 2017-11-21 13:34:13 +00:00
CODING_STYLE CODING_STYLE: indent example code as all others 2019-05-02 18:12:58 +02:00
configure require newer glib2 to enable autofree'ing of stack variables exiting scope 2019-08-22 17:57:09 +01:00
COPYING
COPYING.LIB COPYING.LIB: Synchronize the LGPL 2.1 with the version from gnu.org 2019-01-30 11:01:22 +01:00
cpus-common.c Monitor patches for 2019-08-21 2019-08-22 10:31:21 +01:00
cpus.c util/qemu-timer: refactor deadline calculation for external timers 2019-08-20 17:26:21 +02:00
device_tree.c device_tree: Fix integer overflowing in load_device_tree() 2019-04-09 16:35:40 -07:00
device-hotplug.c Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
disas.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
dma-helpers.c dma-helpers: ensure AIO callback is invoked after cancellation 2019-08-16 19:14:04 -04:00
exec.c Monitor patches for 2019-08-21 2019-08-22 10:31:21 +01:00
gdbstub.c sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
gitdm.config contrib: gitdm: add a mapping for Janus Technologies 2019-03-12 19:31:29 +00:00
HACKING HACKING: Document 'struct' keyword usage 2019-08-20 20:00:51 +02:00
hmp-commands-info.hx {hmp, hw/pvrdma}: Expose device internals via monitor interface 2019-03-16 15:52:44 +02:00
hmp-commands.hx audio: add audiodev property to vnc and wav_capture 2019-08-21 09:13:37 +02:00
ioport.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
iothread.c iothread: document about why we need explicit aio_poll() 2019-03-08 10:20:57 +00:00
job-qmp.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
job.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
Kconfig.host 9p: simplify source file selection 2019-08-20 17:26:19 +02:00
LICENSE roms: Add OpenSBI version 0.4 2019-07-18 14:18:43 -07:00
MAINTAINERS hw/core: Move cpu.c, cpu.h from qom/ to hw/core/ 2019-08-21 13:24:01 +02:00
Makefile tests/docker: add podman support 2019-08-22 17:30:25 +04:00
Makefile.objs dump: Move HMP command handlers to dump/ 2019-07-02 13:37:00 +02:00
Makefile.target configure: only link capstone to emulation targets 2019-07-19 12:52:04 +01:00
memory_ldst.inc.c exec: Fix MAP_RAM for cached access 2018-06-28 19:05:30 +02:00
memory_mapping.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
memory.c memory: Fix up memory_region_{add|del}_coalescing 2019-08-21 16:31:58 +02:00
module-common.c all: Clean up includes 2016-02-04 17:41:30 +00:00
os-posix.c sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
os-win32.c sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
qdev-monitor.c qdev: Collect HMP handlers command handlers in qdev-monitor.c 2019-08-21 13:24:01 +02:00
qemu-bridge-helper.c qemu-bridge-helper: move repeating code in parse_acl_file 2019-07-29 16:29:30 +08:00
qemu-deprecated.texi qapi: add dirty-bitmaps to query-named-block-nodes result 2019-08-16 18:29:43 -04:00
qemu-doc.texi docs: add Security chapter to the documentation 2019-05-10 10:53:52 +01:00
qemu-edid.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
qemu-ga.texi doc: fix the configuration path 2019-05-03 13:03:04 +02:00
qemu-img-cmds.hx qemu-img: Add salvaging mode to convert 2019-06-14 14:16:57 +02:00
qemu-img.c qemu-img: Fix bdrv_has_zero_init() use in convert 2019-08-19 17:13:26 +02:00
qemu-img.texi doc: Preallocation does not require writing zeroes 2019-08-19 17:13:26 +02:00
qemu-io-cmds.c qemu-io-cmds: use clock_gettime for benchmarking 2019-06-12 17:53:22 +01:00
qemu-io.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
qemu-keymap.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
qemu-nbd.c block/nbd: use non-blocking io channel for nbd negotiation 2019-08-15 13:22:14 -05:00
qemu-nbd.texi qemu-nbd: Add --pid-file option 2019-06-13 08:50:47 -05:00
qemu-option-trace.texi qemu-option-trace: -trace enable= is a pattern, not a file 2018-05-20 08:29:01 +03:00
qemu-options-wrapper.h qemu-img: remove references to GEN_DOCS 2018-05-20 08:35:54 +03:00
qemu-options.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
qemu-options.hx usb: bugfixes and minor improvements. 2019-08-22 15:10:51 +01:00
qemu-seccomp.c seccomp: report more useful errors from seccomp 2019-03-27 13:11:38 +01:00
qemu-tech.texi qemu-tech: Fix dangling @menu entries 2019-07-15 21:10:29 +02:00
qemu.nsi NSIS: Add missing firmware blobs 2019-07-23 15:53:25 +01:00
qemu.sasl Default to GSSAPI (Kerberos) instead of DIGEST-MD5 for SASL 2017-05-09 14:41:47 +01:00
qtest.c tests: add module loading test 2019-08-21 16:29:57 +02:00
README README: use 'https://' instead of 'git://' 2018-11-12 11:26:02 +00:00
replication.c replication: Introduce new APIs to do replication operation 2016-09-13 11:00:56 +01:00
replication.h Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
rules.mak contrib: add vhost-user-gpu 2019-05-29 06:30:45 +02:00
thunk.c thunk: improve readability of allocation loop 2019-03-11 18:48:20 +01:00
tpm.c tpm: Clean up error reporting in tpm_init_tpmdev() 2018-10-19 14:51:34 +02:00
trace-events hw/core: Move cpu.c, cpu.h from qom/ to hw/core/ 2019-08-21 13:24:01 +02:00
VERSION Open 4.2 development tree 2019-08-15 17:20:55 +01:00
version.rc Use HTTPS for qemu.org and other domains 2017-11-21 13:34:13 +00:00
vl.c Various trivial fixes 2019-08-21 16:59:22 +01:00

         QEMU README
         ===========

QEMU is a generic and open source machine & userspace emulator and
virtualizer.

QEMU is capable of emulating a complete machine in software without any
need for hardware virtualization support. By using dynamic translation,
it achieves very good performance. QEMU can also integrate with the Xen
and KVM hypervisors to provide emulated hardware while allowing the
hypervisor to manage the CPU. With hypervisor support, QEMU can achieve
near native performance for CPUs. When QEMU emulates CPUs directly it is
capable of running operating systems made for one machine (e.g. an ARMv7
board) on a different machine (e.g. an x86_64 PC board).

QEMU is also capable of providing userspace API virtualization for Linux
and BSD kernel interfaces. This allows binaries compiled against one
architecture ABI (e.g. the Linux PPC64 ABI) to be run on a host using a
different architecture ABI (e.g. the Linux x86_64 ABI). This does not
involve any hardware emulation, simply CPU and syscall emulation.

QEMU aims to fit into a variety of use cases. It can be invoked directly
by users wishing to have full control over its behaviour and settings.
It also aims to facilitate integration into higher level management
layers, by providing a stable command line interface and monitor API.
It is commonly invoked indirectly via the libvirt library when using
open source applications such as oVirt, OpenStack and virt-manager.

QEMU as a whole is released under the GNU General Public License,
version 2. For full licensing details, consult the LICENSE file.


Building
========

QEMU is multi-platform software intended to be buildable on all modern
Linux platforms, OS-X, Win32 (via the Mingw64 toolchain) and a variety
of other UNIX targets. The simple steps to build QEMU are:

  mkdir build
  cd build
  ../configure
  make

Additional information can also be found online via the QEMU website:

  https://qemu.org/Hosts/Linux
  https://qemu.org/Hosts/Mac
  https://qemu.org/Hosts/W32


Submitting patches
==================

The QEMU source code is maintained under the GIT version control system.

   git clone https://git.qemu.org/git/qemu.git

When submitting patches, one common approach is to use 'git
format-patch' and/or 'git send-email' to format & send the mail to the
qemu-devel@nongnu.org mailing list. All patches submitted must contain
a 'Signed-off-by' line from the author. Patches should follow the
guidelines set out in the HACKING and CODING_STYLE files.

Additional information on submitting patches can be found online via
the QEMU website

  https://qemu.org/Contribute/SubmitAPatch
  https://qemu.org/Contribute/TrivialPatches

The QEMU website is also maintained under source control.

  git clone https://git.qemu.org/git/qemu-web.git
  https://www.qemu.org/2017/02/04/the-new-qemu-website-is-up/

A 'git-publish' utility was created to make above process less
cumbersome, and is highly recommended for making regular contributions,
or even just for sending consecutive patch series revisions. It also
requires a working 'git send-email' setup, and by default doesn't
automate everything, so you may want to go through the above steps
manually for once.

For installation instructions, please go to

  https://github.com/stefanha/git-publish

The workflow with 'git-publish' is:

  $ git checkout master -b my-feature
  $ # work on new commits, add your 'Signed-off-by' lines to each
  $ git publish

Your patch series will be sent and tagged as my-feature-v1 if you need to refer
back to it in the future.

Sending v2:

  $ git checkout my-feature # same topic branch
  $ # making changes to the commits (using 'git rebase', for example)
  $ git publish

Your patch series will be sent with 'v2' tag in the subject and the git tip
will be tagged as my-feature-v2.

Bug reporting
=============

The QEMU project uses Launchpad as its primary upstream bug tracker. Bugs
found when running code built from QEMU git or upstream released sources
should be reported via:

  https://bugs.launchpad.net/qemu/

If using QEMU via an operating system vendor pre-built binary package, it
is preferable to report bugs to the vendor's own bug tracker first. If
the bug is also known to affect latest upstream code, it can also be
reported via launchpad.

For additional information on bug reporting consult:

  https://qemu.org/Contribute/ReportABug


Contact
=======

The QEMU community can be contacted in a number of ways, with the two
main methods being email and IRC

 - qemu-devel@nongnu.org
   https://lists.nongnu.org/mailman/listinfo/qemu-devel
 - #qemu on irc.oftc.net

Information on additional methods of contacting the community can be
found online via the QEMU website:

  https://qemu.org/Contribute/StartHere

-- End