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Accepting request 865484 from home:derselbst:branches:games

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SDL2_mixer was not respecting the order of object destruction. This adds an upstream patch to prevent fluidsynth >= 2.1.6 from crashing:
https://hg.libsdl.org/SDL_mixer/rev/b0afe341a91d

OBS-URL: https://build.opensuse.org/request/show/865484
OBS-URL: https://build.opensuse.org/package/show/games/SDL2_mixer?expand=0&rev=24
This commit is contained in:
Jan Engelhardt 2021-01-21 17:28:27 +00:00 committed by Git OBS Bridge
parent ed2297cb34
commit 0e928cc603
3 changed files with 39 additions and 1 deletions
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30
0001-use-after-free-fluidsynth.patch Normal file
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@ -0,0 +1,30 @@
From adee41d0c5211142c3422c889dcda8ccf9aad34f Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Wed, 20 Jan 2021 10:17:10 -0800
Subject: [PATCH] Fixed use-after-free in music_fluidsynth.c
Tom M.
There is a dangerous use-after-free in FLUIDSYNTH_Delete(): the settings object is deleted **before** the synth. Since the settings have been created first to initialize the synth, you must first delete the synth and then delete the settings. This currently crashes all applications that use fluidsynth 2.1.6 and SDL2_mixer.
Originally reported at https://github.com/FluidSynth/fluidsynth/issues/748
---
src/codecs/music_fluidsynth.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/codecs/music_fluidsynth.c b/src/codecs/music_fluidsynth.c
index 8667f0d9..a47247f4 100644
--- a/music_fluidsynth.c 2018-10-31 15:59:00.000000000 +0100
+++ b/music_fluidsynth.c 2021-01-20 18:29:11.610459000 +0100
@@ -273,9 +273,10 @@
static void FLUIDSYNTH_Delete(void *context)
{
FLUIDSYNTH_Music *music = (FLUIDSYNTH_Music *)context;
+ fluid_settings_t *settings = fluidsynth.fluid_synth_get_settings(music->synth);
fluidsynth.delete_fluid_player(music->player);
- fluidsynth.delete_fluid_settings(fluidsynth.fluid_synth_get_settings(music->synth));
fluidsynth.delete_fluid_synth(music->synth);
+ fluidsynth.delete_fluid_settings(settings);
SDL_free(music);
}

7
SDL2_mixer.changes
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@ -1,3 +1,10 @@
-------------------------------------------------------------------
Thu Jan 21 17:14:18 UTC 2021 - Tom Mbrt <tom.mbrt@googlemail.com>
- Add 0001-use-after-free-fluidsynth.patch to prevent
fluidsynth >= 2.1.6 from crashing:
https://hg.libsdl.org/SDL_mixer/rev/b0afe341a91d
-------------------------------------------------------------------
Tue Sep 15 22:56:34 UTC 2020 - Jan Engelhardt <jengelh@inai.de>

3
SDL2_mixer.spec
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@ -1,7 +1,7 @@
#
# spec file for package SDL2_mixer
#
# Copyright (c) 2020 SUSE LLC
# Copyright (c) 2021 SUSE LLC
#
# All modifications and additions to the file contributed by third parties
# remain the property of their copyright owners, unless otherwise agreed
@ -28,6 +28,7 @@ URL: http://libsdl.org/projects/SDL_mixer/
#Hg-Clone: http://hg.libsdl.org/SDL_mixer/
Source: http://libsdl.org/projects/SDL_mixer/release/%name-%version.tar.gz
Source1: baselibs.conf
Patch0: 0001-use-after-free-fluidsynth.patch
BuildRequires: dos2unix
BuildRequires: pkg-config
BuildRequires: pkgconfig(flac)