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-rw-r--r--nx-X11/lib/X11/XKBGetMap.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/nx-X11/lib/X11/XKBGetMap.c b/nx-X11/lib/X11/XKBGetMap.c
index 79fa315cd..56f068dbf 100644
--- a/nx-X11/lib/X11/XKBGetMap.c
+++ b/nx-X11/lib/X11/XKBGetMap.c
@@ -391,6 +391,9 @@ register int i;
unsigned char *wire;
if ( rep->totalModMapKeys>0 ) {
+ if ( ((int)rep->firstModMapKey + rep->nModMapKeys) >
+ (xkb->max_key_code + 1))
+ return BadLength;
if ((xkb->map->modmap==NULL)&&
(XkbAllocClientMap(xkb,XkbModifierMapMask,0)!=Success)) {
return BadAlloc;
@@ -403,6 +406,8 @@ unsigned char *wire;
if (!wire)
return BadLength;
for (i=0;i<rep->totalModMapKeys;i++,wire+=2) {
+ if (wire[0] > xkb->max_key_code || wire[1] > xkb->max_key_code)
+ return BadLength;
xkb->map->modmap[wire[0]]= wire[1];
}
}