From nobody Sun Apr 12 02:52:07 2026 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; dmarc=fail(p=reject dis=none) header.from=rsg.ci.i.u-tokyo.ac.jp Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 177243779045295.1569746111661; Sun, 1 Mar 2026 23:49:50 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vwy1N-00046k-VM; Mon, 02 Mar 2026 02:48:53 -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 1vwy1K-00043o-98; Mon, 02 Mar 2026 02:48:50 -0500 Received: from www3579.sakura.ne.jp ([49.212.243.89]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vwy1H-0001Al-5r; Mon, 02 Mar 2026 02:48:50 -0500 Received: from h205.csg.ci.i.u-tokyo.ac.jp (h205.csg.ci.i.u-tokyo.ac.jp [133.11.54.205]) (authenticated bits=0) by www3579.sakura.ne.jp (8.16.1/8.16.1) with ESMTPSA id 6227mGm3070526 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Mon, 2 Mar 2026 16:48:24 +0900 (JST) (envelope-from odaki@rsg.ci.i.u-tokyo.ac.jp) DKIM-Signature: a=rsa-sha256; bh=yz1K3mW2WUc23Qlepl8xm/wGyRdafvoJCT/tVVjXyIs=; c=relaxed/relaxed; d=rsg.ci.i.u-tokyo.ac.jp; h=From:Message-Id:To:Subject:Date; s=rs20250326; t=1772437704; v=1; b=hy5umFdPZ50SJiAQtbM3y4dN/X/n1wwlipIjjUbgu7d071XMvpuWpkzzuNuiRwN1 KCRxZKD9bhHMFZM+dGC6n14w98Fvf+zA5gN23g3GlrvpazxhQ5UAQrD5JkpWKxOW cd/Kj7lW0dvIFoTzGm2I3zwUltxlKU282z4YZEz4b7NFWX6KjVg0Z65qfVWT42lf AWMEmYyP5UIaZb9ZCqlmg3qK1GEPnzXj51wPLndMvBdQAZyVjGcmrLjltDTma2Xs AbNKWVpkEYLnYeZaJFqHdiePDMOecvmqd/d3ifjPqSshbhxv6S45qEiM1dEjG7AN q5i5g0xvKP6f3BL+TcwkCA== From: Akihiko Odaki Date: Mon, 02 Mar 2026 16:48:09 +0900 Subject: [PATCH v2 2/4] vfio/pci: Grow buffer in vfio_pci_host_match() MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260302-nvme-v2-2-37ad8b5788c3@rsg.ci.i.u-tokyo.ac.jp> References: <20260302-nvme-v2-0-37ad8b5788c3@rsg.ci.i.u-tokyo.ac.jp> In-Reply-To: <20260302-nvme-v2-0-37ad8b5788c3@rsg.ci.i.u-tokyo.ac.jp> To: qemu-devel@nongnu.org Cc: Viktor Prutyanov , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Markus Armbruster , Michael Roth , Paolo Bonzini , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Keith Busch , Klaus Jensen , Jesper Devantier , qemu-block@nongnu.org, Akihiko Odaki X-Mailer: b4 0.15-dev-5ab4c 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=49.212.243.89; envelope-from=odaki@rsg.ci.i.u-tokyo.ac.jp; helo=www3579.sakura.ne.jp X-Spam_score_int: -4 X-Spam_score: -0.5 X-Spam_bar: / X-Spam_report: (-0.5 / 5.0 requ) BAYES_00=-1.9, DKIM_INVALID=0.1, DKIM_SIGNED=0.1, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.012, RCVD_IN_VALIDITY_RPBL_BLOCKED=1.188, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development 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: 1772437791396158500 Ensure the buffer in vfio_pci_host_match() will not overflow even when an invalid addr parameter is provided. Signed-off-by: Akihiko Odaki Reviewed-by: Alex Williamson --- hw/vfio/pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index c89f3fbea348..94c174a773fb 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -2739,7 +2739,7 @@ void vfio_pci_post_reset(VFIOPCIDevice *vdev) =20 bool vfio_pci_host_match(PCIHostDeviceAddress *addr, const char *name) { - char tmp[13]; + char tmp[36]; =20 sprintf(tmp, "%04x:%02x:%02x.%1x", addr->domain, addr->bus, addr->slot, addr->function); --=20 2.53.0