diff options
| -rw-r--r-- | src/Region.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/src/Region.c b/src/Region.c index cb0cf6e..59bcc1a 100644 --- a/src/Region.c +++ b/src/Region.c @@ -23,6 +23,7 @@ #ifdef HAVE_CONFIG_H #include <config.h> #endif +#include <limits.h> #include "Xfixesint.h" XserverRegion @@ -333,9 +334,17 @@ XFixesFetchRegionAndBounds (Display *dpy, bounds->y = rep.y; bounds->width = rep.width; bounds->height = rep.height; - nbytes = (long) rep.length << 2; - nrects = rep.length >> 1; - rects = Xmalloc (nrects * sizeof (XRectangle)); + + if (rep.length < (INT_MAX >> 2)) { + nbytes = (long) rep.length << 2; + nrects = rep.length >> 1; + rects = Xmalloc (nrects * sizeof (XRectangle)); + } else { + nbytes = 0; + nrects = 0; + rects = NULL; + } + if (!rects) { _XEatDataWords(dpy, rep.length); |