From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A2353C43217 for ; Thu, 1 Dec 2022 06:14:58 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1p0cp2-0005gI-JL; Thu, 01 Dec 2022 01:13:24 -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 1p0coy-0005eH-Gl for qemu-devel@nongnu.org; Thu, 01 Dec 2022 01:13:20 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1p0cow-0005lw-TG for qemu-devel@nongnu.org; Thu, 01 Dec 2022 01:13:20 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1669875198; 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=CEncH5jWuMoGUOCPEM0Co8w+5YqVTzL+43gIV+1rwA8=; b=V2QHJNNNaIj/qYI7c2YL1bsWdE2WArlH1NBsqwYSFwQYJ30LcMrCjCHwXyjhpXIBJzRrjJ a76Xfu4ojAb00gPvs3nImdhVekNr3JNFXWSSORxOUdHEDwpPkauN/hqRkxghsAYBZd4W83 Q9MzbMV1MUUuUJDoJMucmiZUFXcgrSM= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-356-oC-RKTEPOdWtBwfpdfHLCQ-1; Thu, 01 Dec 2022 01:13:15 -0500 X-MC-Unique: oC-RKTEPOdWtBwfpdfHLCQ-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 4A3B585A588 for ; Thu, 1 Dec 2022 06:13:15 +0000 (UTC) Received: from blackfin.pond.sub.org (unknown [10.39.192.19]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 21111140EBF5; Thu, 1 Dec 2022 06:13:15 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id E27C321E6681; Thu, 1 Dec 2022 07:13:11 +0100 (CET) From: Markus Armbruster To: qemu-devel@nongnu.org Cc: kraxel@redhat.com, dgilbert@redhat.com Subject: [PATCH 2/9] ui: Fix silent truncation of numeric keys in HMP sendkey Date: Thu, 1 Dec 2022 07:13:04 +0100 Message-Id: <20221201061311.3619052-3-armbru@redhat.com> In-Reply-To: <20221201061311.3619052-1-armbru@redhat.com> References: <20221201061311.3619052-1-armbru@redhat.com> MIME-Version: 1.0 Content-type: text/plain Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.1 on 10.11.54.7 Received-SPF: pass client-ip=170.10.133.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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, 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Keys are int. HMP sendkey assigns them from the value strtoul(), silently truncating values greater than INT_MAX. Fix to reject them. While there, use qemu_strtoul() instead of strtoul() so checkpatch.pl won't complain. Signed-off-by: Markus Armbruster --- monitor/hmp-cmds.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c index 01b789a79e..a7c9ae2520 100644 --- a/monitor/hmp-cmds.c +++ b/monitor/hmp-cmds.c @@ -1666,8 +1666,13 @@ void hmp_sendkey(Monitor *mon, const QDict *qdict) v = g_malloc0(sizeof(*v)); if (strstart(keys, "0x", NULL)) { - char *endp; - int value = strtoul(keys, &endp, 0); + const char *endp; + unsigned long value; + + if (qemu_strtoul(keys, &endp, 0, &value) < 0 + || value >= INT_MAX) { + goto err_out; + } assert(endp <= keys + keyname_len); if (endp != keys + keyname_len) { goto err_out; -- 2.37.3