From nobody Sun Dec 14 21:54:19 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1752222838169490.21730139545707; Fri, 11 Jul 2025 01:33:58 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ua97T-0004vs-Px; Fri, 11 Jul 2025 04:28:37 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ua8yZ-0006R4-By; Fri, 11 Jul 2025 04:19:28 -0400 Received: from isrv.corpit.ru ([212.248.84.144]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ua8yV-00047E-FY; Fri, 11 Jul 2025 04:19:21 -0400 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id 5F2871356DD; Fri, 11 Jul 2025 11:17:19 +0300 (MSK) Received: from think4mjt.tls.msk.ru (mjtthink.wg.tls.msk.ru [192.168.177.146]) by tsrv.corpit.ru (Postfix) with ESMTP id 55CFE23FA52; Fri, 11 Jul 2025 11:17:46 +0300 (MSK) From: Michael Tokarev To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, =?UTF-8?q?Volker=20R=C3=BCmelin?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Mark Cave-Ayland , Michael Tokarev Subject: [Stable-10.0.3 18/39] hw/audio/asc: fix SIGSEGV in asc_realize() Date: Fri, 11 Jul 2025 11:16:14 +0300 Message-ID: <20250711081745.1785806-18-mjt@tls.msk.ru> X-Mailer: git-send-email 2.47.2 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=212.248.84.144; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1752222838869116600 From: Volker R=C3=BCmelin AUD_open_out() may fail and return NULL. This may then lead to a segmentation fault in memset() below. The memset() behaviour is undefined if the pointer to the destination object is a null pointer. Add the missing error handling code. Reviewed-by: Marc-Andr=C3=A9 Lureau Signed-off-by: Volker R=C3=BCmelin Reviewed-by: Mark Cave-Ayland Message-Id: <20250515054429.7385-4-vr_qemu@t-online.de> (cherry picked from commit d009f26a54f573468be721590a19350c224bc730) Signed-off-by: Michael Tokarev diff --git a/hw/audio/asc.c b/hw/audio/asc.c index cc205bf063..b7d0fd8acd 100644 --- a/hw/audio/asc.c +++ b/hw/audio/asc.c @@ -12,6 +12,7 @@ =20 #include "qemu/osdep.h" #include "qemu/timer.h" +#include "qapi/error.h" #include "hw/sysbus.h" #include "hw/irq.h" #include "audio/audio.h" @@ -654,6 +655,12 @@ static void asc_realize(DeviceState *dev, Error **errp) =20 s->voice =3D AUD_open_out(&s->card, s->voice, "asc.out", s, asc_out_cb, &as); + if (!s->voice) { + AUD_remove_card(&s->card); + error_setg(errp, "Initializing audio stream failed"); + return; + } + s->shift =3D 1; s->samples =3D AUD_get_buffer_size_out(s->voice) >> s->shift; s->mixbuf =3D g_malloc0(s->samples << s->shift); --=20 2.47.2