From: Gerd Hoffmann Date: Fri, 28 Apr 2017 09:56:12 +0200 Subject: [PATCH] audio: release capture buffers AUD_add_capture() allocates two buffers which are never released. Add the missing calls to AUD_del_capture(). Impact: Allows vnc clients to exhaust host memory by repeatedly starting and stopping audio capture. Fixes: CVE-2017-8309 Cc: P J P Cc: Huawei PSIRT Reported-by: "Jiangxin (hunter, SCC)" Signed-off-by: Gerd Hoffmann Reviewed-by: Prasad J Pandit Message-id: 20170428075612.9997-1-kraxel@redhat.com (cherry picked from commit 3268a845f41253fb55852a8429c32b50f36f349a) --- audio/audio.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/audio/audio.c b/audio/audio.c index c8898d8422..beafed209b 100644 --- a/audio/audio.c +++ b/audio/audio.c @@ -2028,6 +2028,8 @@ void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque) sw = sw1; } QLIST_REMOVE (cap, entries); + g_free (cap->hw.mix_buf); + g_free (cap->buf); g_free (cap); } return;