diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2014-02-13 22:36:36 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2014-02-13 22:48:09 +0000 |
| commit | 2d9fcb3f729e3959dd30b7d7859438894b806b34 (patch) | |
| tree | 1b09e016138f01b890263b4770299c4b05a6a200 | |
| parent | 1037a1a3f6a8dbde017a28a7b59ef5398c84dba1 (diff) | |
sna: Filter out requests to create a 0x0 frontbuffer
Attempting to create a 0x0 frontbuffer results in erroneous pixmap
generation, and is liable to explode at a random point in future, so
just reject it outright.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
| -rw-r--r-- | src/sna/sna_display.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/sna/sna_display.c b/src/sna/sna_display.c index 54e45ffd..70673b0a 100644 --- a/src/sna/sna_display.c +++ b/src/sna/sna_display.c @@ -3273,6 +3273,10 @@ sna_mode_resize(ScrnInfoPtr scrn, int width, int height) if (scrn->virtualX == width && scrn->virtualY == height) return TRUE; + /* Paranoid defense against rogue internal calls by Xorg */ + if (width == 0 || height == 0) + return FALSE; + assert(sna->front); assert(screen->GetScreenPixmap(screen) == sna->front); |