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Thu, 08 Oct 2020 16:27:33 -0400 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-10-crnV9F94NcOw8SHubKmc_w-1; Thu, 08 Oct 2020 16:27:27 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A1A8A57037; Thu, 8 Oct 2020 20:27:26 +0000 (UTC) Received: from localhost (ovpn-119-102.rdu2.redhat.com [10.10.119.102]) by smtp.corp.redhat.com (Postfix) with ESMTP id A4D545D9E8; Thu, 8 Oct 2020 20:27:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1602188850; 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=NNOqED1OTgtVa+7GfujHrZJ0p5BpKzArXu8F733th+c=; b=e8sxtgU0yxFeRDLwt5dNVpNwkVUTBWaSxXEYDW2he/J1gqyd7lY80JjsVVtAFvqyZV8NJo rSMIYij/BKz4hYm4NTf65yTlQHFZxlHRRmFbDLmsStlCm2IzgZhcmSZANpzFXAmBZ19bF8 AmAnNaL/bO0bpLChyh3OdvFgkTXLs3c= X-MC-Unique: crnV9F94NcOw8SHubKmc_w-1 From: Eduardo Habkost To: qemu-devel@nongnu.org Subject: [PATCH 2/3] can-host-socketcan: Fix crash when 'if' option is not set Date: Thu, 8 Oct 2020 16:27:12 -0400 Message-Id: <20201008202713.1416823-3-ehabkost@redhat.com> In-Reply-To: <20201008202713.1416823-1-ehabkost@redhat.com> References: <20201008202713.1416823-1-ehabkost@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=ehabkost@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com 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; 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charset="utf-8" Fix the following crash: $ qemu-system-x86_64 -object can-host-socketcan,id=3Dobj0 Segmentation fault (core dumped) Signed-off-by: Eduardo Habkost Acked-by: Pavel Pisa Reviewed-by: Li Qiang Reviewed-by: Vikram Garhwal --- Cc: Pavel Pisa Cc: Vikram Garhwal Cc: Jason Wang Cc: qemu-devel@nongnu.org --- net/can/can_socketcan.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/can/can_socketcan.c b/net/can/can_socketcan.c index 92b1f79385..4b68f60c6b 100644 --- a/net/can/can_socketcan.c +++ b/net/can/can_socketcan.c @@ -194,6 +194,11 @@ static void can_host_socketcan_connect(CanHostState *c= h, Error **errp) struct sockaddr_can addr; struct ifreq ifr; =20 + if (!c->ifname) { + error_setg(errp, "'if' property not set"); + return; + } + /* open socket */ s =3D qemu_socket(PF_CAN, SOCK_RAW, CAN_RAW); if (s < 0) { --=20 2.26.2