diff options
| -rw-r--r-- | nx-X11/lib/X11/XKBGetMap.c | 5 |
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]; } } |