Eryu Guan 9883df8cca virtiofsd: stop all queue threads on exit in virtio_loop() ... On guest graceful shutdown, virtiofsd receives VHOST_USER_GET_VRING_BASE request from VMM and shuts down virtqueues by calling fv_set_started(), which joins fv_queue_thread() threads. So when virtio_loop() returns, there should be no thread is still accessing data in fuse session and/or virtio dev. But on abnormal exit, e.g. guest got killed for whatever reason, vhost-user socket is closed and virtio_loop() breaks out the main loop and returns to main(). But it's possible fv_queue_worker()s are still working and accessing fuse session and virtio dev, which results in crash or use-after-free. Fix it by stopping fv_queue_thread()s before virtio_loop() returns, to make sure there's no-one could access fuse session and virtio dev. Reported-by: Qingming Su <qingming.su@linux.alibaba.com> Signed-off-by: Eryu Guan <eguan@linux.alibaba.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>		2020-01-23 16:41:37 +00:00
..
50-qemu-virtiofsd.json.in	virtiofsd: add vhost-user.json file	2020-01-23 16:41:36 +00:00
buffer.c	virtiofsd: use fuse_buf_writev to replace fuse_buf_write for better performance	2020-01-23 16:41:37 +00:00
fuse_common.h	virtiofsd: Parse flag FUSE_WRITE_KILL_PRIV	2020-01-23 16:41:37 +00:00
fuse_i.h	virtiofsd: add --thread-pool-size=NUM option	2020-01-23 16:41:37 +00:00
fuse_log.c	virtiofsd: Fix common header and define for QEMU builds	2020-01-23 16:41:36 +00:00
fuse_log.h	virtiofsd: Format imported files to qemu style	2020-01-23 16:41:36 +00:00
fuse_lowlevel.c	virtiofsd: add --thread-pool-size=NUM option	2020-01-23 16:41:37 +00:00
fuse_lowlevel.h	virtiofsd: print log only when priority is high enough	2020-01-23 16:41:37 +00:00
fuse_misc.h	virtiofsd: support nanosecond resolution for file timestamp	2020-01-23 16:41:37 +00:00
fuse_opt.c	virtiofsd: Fix common header and define for QEMU builds	2020-01-23 16:41:36 +00:00
fuse_opt.h	virtiofsd: Format imported files to qemu style	2020-01-23 16:41:36 +00:00
fuse_signals.c	virtiofsd: convert more fprintf and perror to use fuse log infra	2020-01-23 16:41:37 +00:00
fuse_virtio.c	virtiofsd: stop all queue threads on exit in virtio_loop()	2020-01-23 16:41:37 +00:00
fuse_virtio.h	virtiofsd: cleanup allocated resource in se	2020-01-23 16:41:37 +00:00
fuse.h	virtiofsd: Format imported files to qemu style	2020-01-23 16:41:36 +00:00
helper.c	virtiofsd: convert more fprintf and perror to use fuse log infra	2020-01-23 16:41:37 +00:00
Makefile.objs	virtiofsd: add seccomp whitelist	2020-01-23 16:41:37 +00:00
passthrough_helpers.h	virtiofsd: Format imported files to qemu style	2020-01-23 16:41:36 +00:00
passthrough_ll.c	virtiofsd/passthrough_ll: Pass errno to fuse_reply_err()	2020-01-23 16:41:37 +00:00
seccomp.c	virtiofsd: add --syslog command-line option	2020-01-23 16:41:37 +00:00
seccomp.h	virtiofsd: add --syslog command-line option	2020-01-23 16:41:37 +00:00