All of lore.kernel.org
 help / color / mirror / Atom feed
From: Gerd Hoffmann <kraxel@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Mauro Matteo Cascella" <mcascell@redhat.com>,
	"Prasad J Pandit" <pjp@fedoraproject.org>,
	"Yu Lu" <ini.universe@gmail.com>,
	"Markus Armbruster" <armbru@redhat.com>,
	"Gerd Hoffmann" <kraxel@redhat.com>,
	"Marc-André Lureau" <marcandre.lureau@redhat.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>
Subject: [PULL 02/11] ui/spice-display: check NULL pointer in interface_release_resource()
Date: Fri, 21 May 2021 14:51:10 +0200	[thread overview]
Message-ID: <20210521125119.3173309-3-kraxel@redhat.com> (raw)
In-Reply-To: <20210521125119.3173309-1-kraxel@redhat.com>

From: Mauro Matteo Cascella <mcascell@redhat.com>

Check rext.info to avoid potential NULL pointer dereference. A similar check
exists in interface_release_resource() in hw/display/qxl.c.

Reported-by: Yu Lu <ini.universe@gmail.com>
Signed-off-by: Mauro Matteo Cascella <mcascell@redhat.com>
Reviewed-by: Prasad J Pandit <pjp@fedoraproject.org>
Message-Id: <20210520105833.183160-1-mcascell@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 ui/spice-display.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ui/spice-display.c b/ui/spice-display.c
index d22781a23d06..f59c69882d91 100644
--- a/ui/spice-display.c
+++ b/ui/spice-display.c
@@ -561,6 +561,10 @@ static void interface_release_resource(QXLInstance *sin,
     SimpleSpiceCursor *cursor;
     QXLCommandExt *ext;
 
+    if (!rext.info) {
+        return;
+    }
+
     ext = (void *)(intptr_t)(rext.info->id);
     switch (ext->cmd.type) {
     case QXL_CMD_DRAW:
-- 
2.31.1



  parent reply	other threads:[~2021-05-21 12:57 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-21 12:51 [PULL 00/11] Ui 20210521 patches Gerd Hoffmann
2021-05-21 12:51 ` [PULL 01/11] vnc: spelling fix (enable->enabled) Gerd Hoffmann
2021-05-21 12:51 ` Gerd Hoffmann [this message]
2021-05-21 12:51 ` [PULL 03/11] build: add separate spice-protocol config option Gerd Hoffmann
2021-05-21 12:51 ` [PULL 04/11] ui: add clipboard infrastructure Gerd Hoffmann
2021-05-21 12:51 ` [PULL 05/11] ui: add clipboard documentation Gerd Hoffmann
2021-05-21 12:51 ` [PULL 06/11] ui/vdagent: core infrastructure Gerd Hoffmann
2021-05-21 12:51 ` [PULL 07/11] ui/vdagent: add mouse support Gerd Hoffmann
2021-05-21 12:51 ` [PULL 08/11] ui/vdagent: add clipboard support Gerd Hoffmann
2021-05-21 12:51 ` [PULL 09/11] ui/vnc: " Gerd Hoffmann
2021-12-20 14:33   ` Vladimir Sementsov-Ogievskiy
2021-05-21 12:51 ` [PULL 10/11] ui/gtk: move struct GtkDisplayState to ui/gtk.h Gerd Hoffmann
2021-05-21 12:51 ` [PULL 11/11] ui/gtk: add clipboard support Gerd Hoffmann
2021-05-21 13:09 ` [PULL 00/11] Ui 20210521 patches no-reply
2021-05-21 15:23 ` Peter Maydell

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210521125119.3173309-3-kraxel@redhat.com \
    --to=kraxel@redhat.com \
    --cc=armbru@redhat.com \
    --cc=ini.universe@gmail.com \
    --cc=marcandre.lureau@redhat.com \
    --cc=mcascell@redhat.com \
    --cc=pbonzini@redhat.com \
    --cc=pjp@fedoraproject.org \
    --cc=qemu-devel@nongnu.org \
    --subject='Re: [PULL 02/11] ui/spice-display: check NULL pointer in interface_release_resource()' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.