diff options
Diffstat (limited to 'src/XrrOutput.c')
| -rw-r--r-- | src/XrrOutput.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/XrrOutput.c b/src/XrrOutput.c index 85f0b6e..30f3d40 100644 --- a/src/XrrOutput.c +++ b/src/XrrOutput.c @@ -25,6 +25,7 @@ #include <config.h> #endif +#include <limits.h> #include <stdio.h> #include <X11/Xlib.h> /* we need to be able to manipulate the Display structure on events */ @@ -60,6 +61,16 @@ XRRGetOutputInfo (Display *dpy, XRRScreenResources *resources, RROutput output) return NULL; } + if (rep.length > INT_MAX >> 2 || rep.length < (OutputInfoExtra >> 2)) + { + if (rep.length > (OutputInfoExtra >> 2)) + _XEatDataWords (dpy, rep.length - (OutputInfoExtra >> 2)); + else + _XEatDataWords (dpy, rep.length); + UnlockDisplay (dpy); + SyncHandle (); + return NULL; + } nbytes = ((long) (rep.length) << 2) - OutputInfoExtra; nbytesRead = (long) (rep.nCrtcs * 4 + |