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qemu/spice-app-avoid-crash-when-core-spice-mo.patch
Bruce Rogers 698c429494 Accepting request 874876 from home:bfrogers:branches:Virtualization
- Fix issue of virtio-9p-ccw having been mistakenly dropped from
  qemu (bsc#1182496)
  hw-s390x-fix-build-for-virtio-9p-ccw.patch
- Tweaked some spec file details to be again compatible with quilt
  setup using the spec file as input
- Remove BuildRequires that were added in anticipation of building
  ovmf within this package. We have not taken that route

OBS-URL: https://build.opensuse.org/request/show/874876
OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=619
2021-02-24 14:16:12 +00:00

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From: Bruce Rogers <brogers@suse.com>
Date: Fri, 12 Feb 2021 20:23:18 -0700
Subject: spice-app: avoid crash when core spice module doesn't loaded
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
git-commit: 122e4ef6dea14a078a860ca253852e18ddebb8e2
When qemu is built with modules, but a given module doesn't load
qemu should handle that gracefully. When ui-spice-core.so isn't
able to be loaded and qemu is invoked with -display spice-app or
-spice, qemu will dereference a null pointer. With this change we
check the pointer before dereferencing and error out in a normal
way.
Signed-off-by: Bruce Rogers <brogers@suse.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210213032318.346093-1-brogers@suse.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
ui/spice-app.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/ui/spice-app.c b/ui/spice-app.c
index 026124ef56a0ef26fbe3cf0a1aba..4325ac2d9c5403e8d77099825fc3 100644
--- a/ui/spice-app.c
+++ b/ui/spice-app.c
@@ -129,6 +129,7 @@ static void spice_app_atexit(void)
static void spice_app_display_early_init(DisplayOptions *opts)
{
QemuOpts *qopts;
+ QemuOptsList *list;
GError *err = NULL;
if (opts->has_full_screen) {
@@ -159,11 +160,16 @@ static void spice_app_display_early_init(DisplayOptions *opts)
exit(1);
}
}
+ list = qemu_find_opts("spice");
+ if (list == NULL) {
+ error_report("spice-app missing spice support");
+ exit(1);
+ }
type_register(&char_vc_type_info);
sock_path = g_strjoin("", app_dir, "/", "spice.sock", NULL);
- qopts = qemu_opts_create(qemu_find_opts("spice"), NULL, 0, &error_abort);
+ qopts = qemu_opts_create(list, NULL, 0, &error_abort);
qemu_opt_set(qopts, "disable-ticketing", "on", &error_abort);
qemu_opt_set(qopts, "unix", "on", &error_abort);
qemu_opt_set(qopts, "addr", sock_path, &error_abort);