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vmncdec: Sanity-check rectangle sizes a bit more thorough

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The x/y coordinates could already be bigger than the configured
width/height, and adding the rectangle width/height could cause an
overflow.
This commit is contained in:
Sebastian Dröge 2016-12-06 07:58:25 +02:00
parent 1dbbd4c91e
commit 807e23118b
1 changed files with 2 additions and 1 deletions
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3
gst/vmnc/vmncdec.c
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@ -785,7 +785,8 @@ vmnc_handle_packet (GstVMncDec * dec, const guint8 * data, int len,
r.type);
return ERROR_INVALID;
}
if (r.x + r.width > dec->format.width ||
if (r.x > dec->format.width || r.y > dec->format.height ||
r.x + r.width > dec->format.width ||
r.y + r.height > dec->format.height) {
GST_WARNING_OBJECT (dec, "Rectangle out of range, type %d", r.type);
return ERROR_INVALID;