From nobody Mon Feb 9 21:47:04 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1733233256; cv=none; d=zohomail.com; s=zohoarc; b=EYTFVkjuOD7tj26xzT7oAxarRVH7JFnhy4Cvhf3b4QmE/ieSgLtdrSJd006a0gvgzy36HOZnpHQFRZRItC/3NXdlmo5JRzmtkO0epcg/6Wu5oqKyYVlZ5o8AwbptSQNtdXzKrw0D5+Qmwg+DE/H/MNznrmt4RCq1lrvtvi4yA3w= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1733233256; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=jHr9cJGY/ijRGteW+inaktRfgMyPYsPeEycO3v4GR60=; b=gTwXh0/RoOqKFSCRf+KaMzTGif7SWEU+q0NKYVJleepdwuJDyJ6tdrdhHiX4/Pc7xZN7ZILlTahb78qsza8ohgOLv9WyJlsoPtzt6QGRiXP1cOYQvkhUxdh66BhS+vwE0VBQz3wGD7ZdWogjvGQ+bfsGhk9jSa5F200yLC3Qc2I= ARC-Authentication-Results: i=1; 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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1733233218; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=jHr9cJGY/ijRGteW+inaktRfgMyPYsPeEycO3v4GR60=; b=G08oyW9GylcUqg1Q7bRZlH2x3fchvrb6vHgxIr7JKtgdZzC6hNMwml61Va4DpC88y0WiVp rd0YN+TE1J4SW/inMien/yKb4dl35WATqxe7UD52+hE9ec2p3WeZJ00d4IwZKB60CaLyAH 8rka1BEMt596laXiGxIfxS8p1QYT4+s= X-MC-Unique: vZixn3tUPBSjUMysRInwSA-1 X-Mimecast-MFC-AGG-ID: vZixn3tUPBSjUMysRInwSA From: marcandre.lureau@redhat.com To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org, Paolo Bonzini , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Nicholas Piggin Subject: [PULL 1/2] chardev: Fix record/replay error path NULL deref in device creation Date: Tue, 3 Dec 2024 17:40:00 +0400 Message-ID: <20241203134001.750958-2-marcandre.lureau@redhat.com> In-Reply-To: <20241203134001.750958-1-marcandre.lureau@redhat.com> References: <20241203134001.750958-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 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=170.10.129.124; envelope-from=marcandre.lureau@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -50 X-Spam_score: -5.1 X-Spam_bar: ----- X-Spam_report: (-5.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-2.996, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_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-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1733233258377116600 From: Nicholas Piggin qemu_chardev_set_replay() was being called in chardev creation to set up replay parameters even if the chardev is NULL. A segfault can be reproduced by specifying '-serial chardev:bad' with an rr=3Drecord mode. Fix this with a NULL pointer check. Reported-by: Peter Maydell Resolves: Coverity CID 1559470 Fixes: 4c193bb129dae ("chardev: set record/replay on the base device of a m= uxed device") Signed-off-by: Nicholas Piggin Reviewed-by: Marc-Andr=C3=A9 Lureau Reviewed-by: Peter Maydell Message-ID: <20240828043337.14587-2-npiggin@gmail.com> --- chardev/char.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/chardev/char.c b/chardev/char.c index a1722aa076..1c7f6c711a 100644 --- a/chardev/char.c +++ b/chardev/char.c @@ -726,7 +726,7 @@ static Chardev *__qemu_chr_new(const char *label, const= char *filename, =20 if (strstart(filename, "chardev:", &p)) { chr =3D qemu_chr_find(p); - if (replay) { + if (replay && chr) { qemu_chardev_set_replay(chr, &err); if (err) { error_report_err(err); --=20 2.47.0 From nobody Mon Feb 9 21:47:04 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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; 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dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1733233239917870.4453348753635; Tue, 3 Dec 2024 05:40:39 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tIT8h-0006L6-Qt; Tue, 03 Dec 2024 08:40:32 -0500 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 1tIT8a-0006KG-02 for qemu-devel@nongnu.org; Tue, 03 Dec 2024 08:40:24 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tIT8Y-00020C-Dv for qemu-devel@nongnu.org; Tue, 03 Dec 2024 08:40:23 -0500 Received: from mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-609-f4-ub7Z5MaCrRKr2Tv5buA-1; 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bh=w5ChKXtHIpjzQSjyahis7qpZuTfzIJGucF5eGbHoAV8=; b=CLfrcHPio6oP/ujWwkQ1nUEs2Jthyit8dRig+dUbaJUP/0naXAzN8NL9R6Zu33iNHAsJl1 I1y2aL/beCuaTeDWDp165pTHXGe43G1tcXDOy6zRX1qZy5yqGxXqxuyCN4NMiSZmgO+5O+ Is1LW8tA+qzko3jAjuh7FATvgOQxmqo= X-MC-Unique: f4-ub7Z5MaCrRKr2Tv5buA-1 X-Mimecast-MFC-AGG-ID: f4-ub7Z5MaCrRKr2Tv5buA From: marcandre.lureau@redhat.com To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org, Paolo Bonzini , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Nicholas Piggin Subject: [PULL 2/2] chardev: Remove __-prefixed names Date: Tue, 3 Dec 2024 17:40:01 +0400 Message-ID: <20241203134001.750958-3-marcandre.lureau@redhat.com> In-Reply-To: <20241203134001.750958-1-marcandre.lureau@redhat.com> References: <20241203134001.750958-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 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=170.10.129.124; envelope-from=marcandre.lureau@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -50 X-Spam_score: -5.1 X-Spam_bar: ----- X-Spam_report: (-5.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-2.996, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_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-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1733233242163116600 From: Nicholas Piggin Peter points out double underscore prefix names tend to be reserved for the system. Clean these up. Suggested-by: Peter Maydell Signed-off-by: Nicholas Piggin Reviewed-by: Marc-Andr=C3=A9 Lureau Reviewed-by: Peter Maydell Message-ID: <20240828043337.14587-3-npiggin@gmail.com> --- chardev/char.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/chardev/char.c b/chardev/char.c index 1c7f6c711a..d06698228a 100644 --- a/chardev/char.c +++ b/chardev/char.c @@ -633,8 +633,8 @@ static void qemu_chardev_set_replay(Chardev *chr, Error= **errp) } } =20 -static Chardev *__qemu_chr_new_from_opts(QemuOpts *opts, GMainContext *con= text, - bool replay, Error **errp) +static Chardev *do_qemu_chr_new_from_opts(QemuOpts *opts, GMainContext *co= ntext, + bool replay, Error **errp) { const ChardevClass *cc; Chardev *base =3D NULL, *chr =3D NULL; @@ -712,12 +712,12 @@ Chardev *qemu_chr_new_from_opts(QemuOpts *opts, GMain= Context *context, Error **errp) { /* XXX: should this really not record/replay? */ - return __qemu_chr_new_from_opts(opts, context, false, errp); + return do_qemu_chr_new_from_opts(opts, context, false, errp); } =20 -static Chardev *__qemu_chr_new(const char *label, const char *filename, - bool permit_mux_mon, GMainContext *context, - bool replay) +static Chardev *qemu_chr_new_from_name(const char *label, const char *file= name, + bool permit_mux_mon, + GMainContext *context, bool replay) { const char *p; Chardev *chr; @@ -740,7 +740,7 @@ static Chardev *__qemu_chr_new(const char *label, const= char *filename, if (!opts) return NULL; =20 - chr =3D __qemu_chr_new_from_opts(opts, context, replay, &err); + chr =3D do_qemu_chr_new_from_opts(opts, context, replay, &err); if (!chr) { error_report_err(err); goto out; @@ -765,7 +765,8 @@ out: Chardev *qemu_chr_new_noreplay(const char *label, const char *filename, bool permit_mux_mon, GMainContext *context) { - return __qemu_chr_new(label, filename, permit_mux_mon, context, false); + return qemu_chr_new_from_name(label, filename, permit_mux_mon, context, + false); } =20 static Chardev *qemu_chr_new_permit_mux_mon(const char *label, @@ -773,7 +774,8 @@ static Chardev *qemu_chr_new_permit_mux_mon(const char = *label, bool permit_mux_mon, GMainContext *context) { - return __qemu_chr_new(label, filename, permit_mux_mon, context, true); + return qemu_chr_new_from_name(label, filename, permit_mux_mon, context, + true); } =20 Chardev *qemu_chr_new(const char *label, const char *filename, --=20 2.47.0