libXtst: Changes to 'master'

[Matthieu Herrb]

 src/XRecord.c |   43 +++++++++++++++++++++++++++++++++++++++----
 1 file changed, 39 insertions(+), 4 deletions(-)

New commits:
commit 9556ad67af3129ec4a7a4f4b54a0d59701beeae3
Author: Tobias Stoeckmann <tobias at stoeckmann.org>
Date:   Sun Sep 25 21:37:01 2016 +0200

    Out of boundary access and endless loop in libXtst
    
    A lack of range checks in libXtst allows out of boundary accesses.
    The checks have to be done in-place here, because it cannot be done
    without in-depth knowledge of the read data.
    
    If XRecordStartOfData, XRecordEndOfData, or XRecordClientDied
    without a client sequence have attached data, an endless loop would
    occur. The do-while-loop continues until the current index reaches
    the end. But in these cases, the current index would not be
    incremented, leading to an endless processing.
    
    Signed-off-by: Tobias Stoeckmann <tobias at stoeckmann.org>
    Reviewed-by: Matthieu Herrb <matthieu at herrb.eu>