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From: Gerd Hoffmann <kraxel@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Eric Blake" <eblake@redhat.com>,
	"Markus Armbruster" <armbru@redhat.com>,
	"Gerd Hoffmann" <kraxel@redhat.com>,
	"Bandan Das" <bsd@redhat.com>,
	"Alexander Bulekov" <alxndr@bu.edu>,
	"Laurent Vivier" <lvivier@redhat.com>,
	"Darren Kenny" <darren.kenny@oracle.com>,
	"Qiuhao Li" <Qiuhao.Li@outlook.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Philippe Mathieu-Daudé" <f4bug@amsat.org>,
	"Akihiko Odaki" <akihiko.odaki@gmail.com>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	"Alexandre Ratchov" <alex@caoua.org>,
	"Peter Maydell" <peter.maydell@linaro.org>,
	"Stefan Hajnoczi" <stefanha@redhat.com>,
	"Thomas Huth" <thuth@redhat.com>,
	"Volker Rümelin" <vr_qemu@t-online.de>
Subject: [PULL 23/25] audio: remove abort() in audio_bug()
Date: Mon, 26 Sep 2022 11:55:07 +0200	[thread overview]
Message-ID: <20220926095509.3759409-24-kraxel@redhat.com> (raw)
In-Reply-To: <20220926095509.3759409-1-kraxel@redhat.com>

From: Volker Rümelin <vr_qemu@t-online.de>

Commit ab32b78cd1 "audio: Simplify audio_bug() removing old code"
introduced abort() in audio_bug() for regular builds.

audio_bug() was never meant to abort QEMU for the following
reasons.

  - There's code in audio_bug() that expects audio_bug() gets
    called more than once with error condition true. The variable
    'shown' is only 0 on first error.

  - All call sites test the return code of audio_bug(), print
    an error context message and handle the errror.

  - The abort() in audio_bug() enables a class of guest-triggered
    aborts similar to the Launchpad Bug #1910603 at
    https://bugs.launchpad.net/bugs/1910603.

Fixes: ab32b78cd1 "audio: Simplify audio_bug() removing old code"
Buglink: https://bugs.launchpad.net/bugs/1910603
Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Message-Id: <20220917131626.7521-2-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 audio/audio.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/audio/audio.c b/audio/audio.c
index d96a13055940..df6818ed5598 100644
--- a/audio/audio.c
+++ b/audio/audio.c
@@ -118,7 +118,6 @@ int audio_bug (const char *funcname, int cond)
             AUD_log (NULL, "I am sorry\n");
         }
         AUD_log (NULL, "Context:\n");
-        abort();
     }
 
     return cond;
-- 
2.37.3



  parent reply	other threads:[~2022-09-26 10:45 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-26  9:54 [PULL 00/25] Kraxel 20220926 patches Gerd Hoffmann
2022-09-26  9:54 ` [PULL 01/25] ui/console: Get tab completion working again in the SDL monitor vc Gerd Hoffmann
2022-09-26  9:54 ` [PULL 02/25] ui/cocoa: Run qemu_init in the main thread Gerd Hoffmann
2022-09-26  9:54 ` [PULL 03/25] Revert "main-loop: Disable block backend global state assertion on Cocoa" Gerd Hoffmann
2022-09-26  9:54 ` [PULL 04/25] meson: Allow to enable gtk and sdl while cocoa is enabled Gerd Hoffmann
2022-09-26  9:54 ` [PULL 05/25] ui: add some vdagent related traces Gerd Hoffmann
2022-09-26  9:54 ` [PULL 06/25] ui/clipboard: fix serial priority Gerd Hoffmann
2022-09-26  9:54 ` [PULL 07/25] ui/vdagent: always reset the clipboard serial on caps Gerd Hoffmann
2022-09-26  9:54 ` [PULL 08/25] ui/clipboard: reset the serial state on reset Gerd Hoffmann
2022-09-26  9:54 ` [PULL 09/25] ui/vdagent: fix serial reset of guest agent Gerd Hoffmann
2022-09-26  9:54 ` [PULL 10/25] ui/console: fix three double frees in png_save() Gerd Hoffmann
2022-09-26  9:54 ` [PULL 11/25] hw/usb/hcd-xhci: Check whether DMA accesses fail Gerd Hoffmann
2022-09-26  9:54 ` [PULL 12/25] hcd-ohci: Drop ohci_service_iso_td() if ed->head & OHCI_DPTR_MASK is zero Gerd Hoffmann
2022-09-26  9:54 ` [PULL 13/25] hcd-ohci: Fix inconsistency when resetting ohci root hubs Gerd Hoffmann
2022-09-27  1:11   ` Stefan Hajnoczi
2022-09-28 12:24     ` Qiang Liu
2023-02-15 13:45       ` Qiang Liu
2023-02-15 14:34         ` Stefan Hajnoczi
2023-02-15 16:28           ` Laurent Vivier
2023-02-15 17:05             ` BALATON Zoltan
2023-02-15 16:10         ` Laurent Vivier
2022-09-26  9:54 ` [PULL 14/25] usb/msd: move usb_msd_packet_complete() Gerd Hoffmann
2022-09-26  9:54 ` [PULL 15/25] usb/msd: add usb_msd_fatal_error() and fix guest-triggerable assert Gerd Hoffmann
2022-09-26  9:55 ` [PULL 16/25] hcd-xhci: drop operation with secondary stream arrays enabled Gerd Hoffmann
2022-09-26  9:55 ` [PULL 17/25] usbnet: Add missing usb_wakeup() call in usbnet_receive() Gerd Hoffmann
2022-09-26  9:55 ` [PULL 18/25] usbnet: Accept mandatory USB_CDC_SET_ETHERNET_PACKET_FILTER request Gerd Hoffmann
2022-09-26  9:55 ` [PULL 19/25] usbnet: Detect short packets as sent by the xHCI controller Gerd Hoffmann
2022-09-26  9:55 ` [PULL 20/25] usbnet: Report link-up via interrupt endpoint in CDC-ECM mode Gerd Hoffmann
2022-09-26  9:55 ` [PULL 21/25] audio: Add sndio backend Gerd Hoffmann
2022-09-26  9:55 ` [PULL 22/25] Revert "audio: Log context for audio bug" Gerd Hoffmann
2022-09-26  9:55 ` Gerd Hoffmann [this message]
2022-09-26  9:55 ` [PULL 24/25] hw/display/ati_2d: Fix buffer overflow in ati_2d_blt (CVE-2021-3638) Gerd Hoffmann
2022-09-26  9:55 ` [PULL 25/25] virtio-gpu: update scanout if there is any area covered by the rect Gerd Hoffmann
2022-09-27  1:12 ` [PULL 00/25] Kraxel 20220926 patches Stefan Hajnoczi

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