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vhost-user: disable chardev handlers on close 

This otherwise causes a use-after-free if network backend cleanup
is performed before character device cleanup.

Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2016-06-29 15:15:33 +02:00
parent 634d39b4e3
commit 25f0d2aa5e
1 changed files with 5 additions and 0 deletions
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5
net/vhost-user.c
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@ -151,6 +151,11 @@ static void vhost_user_cleanup(NetClientState *nc)
vhost_net_cleanup(s->vhost_net); vhost_net_cleanup(s->vhost_net);
s->vhost_net = NULL; s->vhost_net = NULL;
} }
if (s->chr) {
qemu_chr_add_handlers(s->chr, NULL, NULL, NULL, NULL);
qemu_chr_fe_release(s->chr);
s->chr = NULL;
}
qemu_purge_queued_packets(nc); qemu_purge_queued_packets(nc);
} }