spice-gtk/0004-channel-usbredir-Fix-crash-on-channel-up.patch
Cole Robinson 58daa5a8e4 channel-usbredir: Fix crash on channel-up. Resolves: rhbz#1399838
usbutils no longer ships usb.ids, it is hwdata now, set path manually.
Backport fixes for "Couldn't find current GL or GLX context" Resolves: rhbz#1461802
2017-06-20 18:16:13 -04:00

60 lines
2.3 KiB
Diff

From 291f3e4419e6fb4077ae43a5e09eb1c37b9dd729 Mon Sep 17 00:00:00 2001
From: Victor Toso <me@victortoso.com>
Date: Tue, 29 Nov 2016 22:34:04 +0100
Subject: [PATCH spice-gtk] channel-usbredir: Fix crash on channel-up
SpiceSession does not initialize its SpiceUsbDeviceManager object on
startup that could lead to a race condition where channel-usbredir is
requested to flush data while it is uninitialized.
In a few places, spice_usb_device_manager_get() is called as in
usb-device-widget.c and spice-gtk-session.c but not used in
spicy-stats, making the tool to crash on startup if it encounters an
usbredir channel.
#0 in usbredirhost_write_guest_data (host=0x0) at usbredir/usbredirhost/usbredirhost.c:876
#1 in spice_usbredir_channel_up (c=0x643830) at channel-usbredir.c:821
#2 in spice_channel_up (channel=0x643830) at spice-channel.c:1238
#3 in spice_channel_recv_auth (channel=0x643830) at spice-channel.c:1225
#4 in spice_channel_coroutine (data=0x643830) at spice-channel.c:2580
#5 in coroutine_trampoline (cc=0x642ec0) at coroutine_ucontext.c:63
#6 in continuation_trampoline (i0=6565568, i1=0) at continuation.c:55
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1399838
Signed-off-by: Victor Toso <victortoso@redhat.com>
Reported-by: Michael Cullen <michael@cullen-online.com>
Acked-by: Christophe Fergeau <cfergeau@redhat.com>
---
src/spice-session.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/src/spice-session.c b/src/spice-session.c
index f900bd1..cc3dbdd 100644
--- a/src/spice-session.c
+++ b/src/spice-session.c
@@ -281,6 +281,7 @@ static void spice_session_init(SpiceSession *session)
{
SpiceSessionPrivate *s;
gchar *channels;
+ GError *err = NULL;
SPICE_DEBUG("New session (compiled from package " PACKAGE_STRING ")");
s = session->priv = SPICE_SESSION_GET_PRIVATE(session);
@@ -293,6 +294,12 @@ static void spice_session_init(SpiceSession *session)
s->images = cache_image_new((GDestroyNotify)pixman_image_unref);
s->glz_window = glz_decoder_window_new();
update_proxy(session, NULL);
+
+ s->usb_manager = spice_usb_device_manager_get(session, &err);
+ if (err != NULL) {
+ SPICE_DEBUG("Could not initialize SpiceUsbDeviceManager - %s", err->message);
+ g_clear_error(&err);
+ }
}
static void
--
2.13.1.395.gf7b71de06