From nobody Sun Jul 26 13:27:34 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=163.com ARC-Seal: i=1; a=rsa-sha256; t=1781613201; cv=none; d=zohomail.com; s=zohoarc; b=TbihF+N09N//O1zAcDjAXA2IROt3FccdyYiAgyR6zGD+t3DVIoebXl+GWfXZvyrfyac4MnKGEb1iVRdna2woT0/7E8fEH2wP6pRpn3I/uQWuN/gKQVfxlBVevZpneHBm4USOntRbU/LNJZNEvd9YwkuuYCvYfofr9ifgGfidzGQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1781613201; h=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=G0ytJBKH6ieo2ArfDwfcC6VgasgMg/pQ2KxrNKkOdlY=; b=TPw8Pc2BVA4lB9xKAE8ACYGcoGX+cSfz1exbVvRAmOffufU41/uDkNjagB/hmIE2uUyUo5I5oGQy0krtPTbogSd1Z15TSxk2pTvAmnlK2DtWuB+h8fipRMwbrvz2qEouV6ommBqCpNcHbrnwGda5Zt18+aM4o7HsQYa1ie79rUc= ARC-Authentication-Results: i=1; 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 header.from= (p=none dis=none) Return-Path: Received: from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1781613201597902.3371223952427; Tue, 16 Jun 2026 05:33:21 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1wZSyh-0003sB-Pe; Tue, 16 Jun 2026 08:33:15 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wZSyf-0003rD-BN for qemu-devel@nongnu.org; Tue, 16 Jun 2026 08:33:13 -0400 Received: from m16.mail.163.com ([220.197.31.2]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wZSyc-0006fy-W9 for qemu-devel@nongnu.org; Tue, 16 Jun 2026 08:33:13 -0400 Received: from zinogre.. (unknown []) by gzga-smtp-mtada-g1-3 (Coremail) with SMTP id _____wAX35lzQjFqmGm1DQ--.51S3; Tue, 16 Jun 2026 20:32:54 +0800 (CST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=G0 ytJBKH6ieo2ArfDwfcC6VgasgMg/pQ2KxrNKkOdlY=; b=muCRbzCy8zyG9lnOze Of1KLx957/IWu4jrNPE/RarnAO1+WUr3+ctlt5DEBy47ujuMGm83+ZLIGVn2tFpL qkAgH/iFzrDMaCwT43Tn3g7oMvpX56NxZLiM2uu8zLdH6cp4EobqaZoYvIEr/2vy mo1gc53Y1yaBckcZqPfm45J1k= From: helei To: qemu-devel@nongnu.org Cc: arei.gonglei@huawei.com, zhenwei.pi@linux.dev, mst@redhat.com, helei Subject: [PATCH v2] hw/virtio-crypto: enforce max akcipher key length Date: Tue, 16 Jun 2026 20:32:51 +0800 Message-ID: <20260616123251.26446-2-lhestz@163.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260616123251.26446-1-lhestz@163.com> References: <20260616123251.26446-1-lhestz@163.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: _____wAX35lzQjFqmGm1DQ--.51S3 X-Coremail-Antispam: 1Uf129KBjvdXoW7XFWDuw4DZF47KF48Gw4Durg_yoW3urb_A3 yku3yxWw4rXF10va1UArWrWr12g3WfAFnF9FZIg3W8A3Wxta1DJF1xJrs5WF47Z3y8JF45 GF45Ars0gw13ujkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7sRyOpRJUUUUU== X-Originating-IP: [2409:8a00:18c1:5350:3587:e387:c9c3:2fb] X-CM-SenderInfo: pokh23r26rljoofrz/xtbC8xaUv2oxQnYROwAA3L 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=lists1p.gnu.org; Received-SPF: pass client-ip=220.197.31.2; envelope-from=lhestz@163.com; helo=m16.mail.163.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=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: 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-ZohoMail-DKIM: pass (identity @163.com) X-ZM-MESSAGEID: 1781613201866158500 Content-Type: text/plain; charset="utf-8" enforce the global max_size boundary for akcipher session creation Signed-off-by: helei --- hw/virtio/virtio-crypto.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/hw/virtio/virtio-crypto.c b/hw/virtio/virtio-crypto.c index 6fceb39681..79e2acb56c 100644 --- a/hw/virtio/virtio-crypto.c +++ b/hw/virtio/virtio-crypto.c @@ -216,6 +216,12 @@ virtio_crypto_create_asym_session(VirtIOCrypto *vcrypt= o, return -VIRTIO_CRYPTO_NOTSUPP; } =20 + if (unlikely(keylen > vcrypto->conf.max_size)) { + error_report("virtio-crypto length of akcipher key is too large: %= u", + keylen); + return -VIRTIO_CRYPTO_ERR; + } + if (keylen) { asym_info->key =3D g_malloc(keylen); if (iov_to_buf(iov, out_num, 0, asym_info->key, keylen) !=3D keyle= n) { --=20 2.43.0