File 0269-audio-release-capture-buffers.patch of Package qemu.15027

Overview Repositories Revisions Requests Users Attributes Meta

File 0269-audio-release-capture-buffers.patch of Package qemu.15027

From fb9270311c88de01410d30295fb26479f615ca21 Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
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 <ppandit@redhat.com>
Cc: Huawei PSIRT <PSIRT@huawei.com>
Reported-by: "Jiangxin (hunter, SCC)" <jiangxin1@huawei.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Prasad J Pandit <pjp@fedoraproject.org>
Message-id: 20170428075612.9997-1-kraxel@redhat.com
(cherry picked from commit 3268a845f41253fb55852a8429c32b50f36f349a)
[BR: BSC#1037242]
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 audio/audio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/audio/audio.c b/audio/audio.c
index 9d018e9ded..d29cb3bdc5 100644
--- a/audio/audio.c
+++ b/audio/audio.c
@@ -2054,6 +2054,8 @@ 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;

Places

File 0269-audio-release-capture-buffers.patch of Package qemu.15027

Places