diff options
| author | Mauro Matteo Cascella <mcascell@redhat.com> | 2021-05-20 12:58:33 +0200 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2021-05-21 09:42:44 +0200 |
| commit | e932e9f327650d4a3f745539e8c4bf4f72a08015 (patch) | |
| tree | 876b955977a2ad0fefb91af5ce8c7da95f80656f | |
| parent | 4087ecb84227bf16f4481377a3bbe79fc87e1ada (diff) | |
| download | qemu-e932e9f327650d4a3f745539e8c4bf4f72a08015.zip qemu-e932e9f327650d4a3f745539e8c4bf4f72a08015.tar.gz qemu-e932e9f327650d4a3f745539e8c4bf4f72a08015.tar.bz2 | |
ui/spice-display: check NULL pointer in interface_release_resource()
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>
| -rw-r--r-- | ui/spice-display.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/ui/spice-display.c b/ui/spice-display.c index d22781a..f59c698 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: |