recipes/bluez/bluez4-4.99/0001-sdp-Fix-Out-of-bounds-heap-read-in-service_search_at.patch

   1 From 9e009647b14e810e06626dde7f1bb9ea3c375d09 Mon Sep 17 00:00:00 2001
   2 From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
   3 Date: Wed, 13 Sep 2017 10:01:40 +0300
   4 Subject: [PATCH] sdp: Fix Out-of-bounds heap read in service_search_attr_req
   5  function
   6
   7 Check if there is enough data to continue otherwise return an error.
   8 ---
   9  src/sdpd-request.c | 2 +-
  10  1 file changed, 1 insertion(+), 1 deletion(-)
  11
  12 diff --git a/src/sdpd-request.c b/src/sdpd-request.c
  13 index 1eefdce..318d044 100644
  14 --- a/src/sdpd-request.c
  15 +++ b/src/sdpd-request.c
  16 @@ -917,7 +917,7 @@ static int service_search_attr_req(sdp_req_t *req, sdp_buf_t *buf)
  17         } else {
  18                 /* continuation State exists -> get from cache */
  19                 sdp_buf_t *pCache = sdp_get_cached_rsp(cstate);
  20 -               if (pCache) {
  21 +               if (pCache && cstate->cStateValue.maxBytesSent < pCache->data_size) {
  22                         uint16_t sent = MIN(max, pCache->data_size - cstate->cStateValue.maxBytesSent);
  23                         pResponse = pCache->data;
  24                         memcpy(buf->data, pResponse + cstate->cStateValue.maxBytesSent, sent);
  25 --
  26 2.7.4
  27