pxcloud/spice
5
0
Fork 0
mirror of https://gitlab.uni-freiburg.de/opensourcevdi/spice synced 2026-01-13 10:43:37 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

display-channel: Avoid potential crash from buggy guest driver

Browse Source 
This fixes https://bugzilla.redhat.com/show_bug.cgi?id=1582137.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Snir Sheriber <ssheribe@redhat.com>
This commit is contained in:
Frediano Ziglio 2019-06-17 17:12:17 +01:00
parent 1a3c0b1ee6
commit bf968572d1
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
server/display-channel.c
View File

@ -2032,7 +2032,11 @@ void display_channel_update(DisplayChannel *display,
SpiceRect rect;
RedSurface *surface;
spice_return_if_fail(display_channel_validate_surface(display, surface_id));
// Check that the request is valid, the surface_id comes directly from the guest
if (!display_channel_validate_surface(display, surface_id)) {
// just return, display_channel_validate_surface already logged a warning
return;
}
red_get_rect_ptr(&rect, area);
display_channel_draw(display, &rect, surface_id);