debian/patches/extra/0012-audio-release-capture-buffers.patch

   1 From 56ca431e96a6aadffdccecb882600dc780f13ad9 Mon Sep 17 00:00:00 2001
   2 From: Gerd Hoffmann <kraxel@redhat.com>
   3 Date: Fri, 28 Apr 2017 09:56:12 +0200
   4 Subject: [PATCH 12/15] audio: release capture buffers
   5
   6 AUD_add_capture() allocates two buffers which are never released.
   7 Add the missing calls to AUD_del_capture().
   8
   9 Impact: Allows vnc clients to exhaust host memory by repeatedly
  10 starting and stopping audio capture.
  11
  12 Fixes: CVE-2017-8309
  13 Cc: P J P <ppandit@redhat.com>
  14 Cc: Huawei PSIRT <PSIRT@huawei.com>
  15 Reported-by: "Jiangxin (hunter, SCC)" <jiangxin1@huawei.com>
  16 Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
  17 Reviewed-by: Prasad J Pandit <pjp@fedoraproject.org>
  18 Message-id: 20170428075612.9997-1-kraxel@redhat.com
  19 ---
  20  audio/audio.c | 2 ++
  21  1 file changed, 2 insertions(+)
  22
  23 diff --git a/audio/audio.c b/audio/audio.c
  24 index c8898d8422..beafed209b 100644
  25 --- a/audio/audio.c
  26 +++ b/audio/audio.c
  27 @@ -2028,6 +2028,8 @@ void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque)
  28                      sw = sw1;
  29                  }
  30                  QLIST_REMOVE (cap, entries);
  31 +                g_free (cap->hw.mix_buf);
  32 +                g_free (cap->buf);
  33                  g_free (cap);
  34              }
  35              return;
  36 --
  37 2.11.0
  38