From patchwork Mon Nov 14 11:07:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wei Yongjun X-Patchwork-Id: 624621 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 22045C4332F for ; Mon, 14 Nov 2022 11:07:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236618AbiKNLHL (ORCPT ); Mon, 14 Nov 2022 06:07:11 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33112 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235617AbiKNLHI (ORCPT ); Mon, 14 Nov 2022 06:07:08 -0500 Received: from dggsgout12.his.huawei.com (dggsgout12.his.huawei.com [45.249.212.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B85051DA77 for ; Mon, 14 Nov 2022 03:07:07 -0800 (PST) Received: from mail02.huawei.com (unknown [172.30.67.153]) by dggsgout12.his.huawei.com (SkyGuard) with ESMTP id 4N9mjL1RYqz4f3thK for ; Mon, 14 Nov 2022 19:07:02 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.102.38]) by APP4 (Coremail) with SMTP id gCh0CgDH69hYIXJjTUALAg--.19413S4; Mon, 14 Nov 2022 19:07:05 +0800 (CST) From: Wei Yongjun To: "Michael S. Tsirkin" , Jason Wang , Gonglei , Herbert Xu , "David S. Miller" , zhenwei pi Cc: Wei Yongjun , virtualization@lists.linux-foundation.org, linux-crypto@vger.kernel.org Subject: [PATCH] virtio-crypto: fix memory leak in virtio_crypto_alg_skcipher_close_session() Date: Mon, 14 Nov 2022 11:07:40 +0000 Message-Id: <20221114110740.537276-1-weiyongjun@huaweicloud.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-CM-TRANSID: gCh0CgDH69hYIXJjTUALAg--.19413S4 X-Coremail-Antispam: 1UD129KBjvdXoW7Gw4fCF1kGrW5Wry5JFWDurg_yoWkGFX_J3 s7W39rZryjgF10vrWDZ3yrWrZFva4rZFykWr4ftry8Ja43ZF45GF12qrnxCFyUX34jyF45 Cws3tr9xuw1fujkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbokYFVCjjxCrM7AC8VAFwI0_Gr0_Xr1l1xkIjI8I6I8E6xAIw20E Y4v20xvaj40_Wr0E3s1l1IIY67AEw4v_Jr0_Jr4l8cAvFVAK0II2c7xJM28CjxkF64kEwV A0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVW7JVWDJwA2z4x0Y4vE2Ix0cI8IcVCY1x02 67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I 0E14v26rxl6s0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40E x7xfMcIj6xIIjxv20xvE14v26r1Y6r17McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x 0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41l42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Y z7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zV AF1VAY17CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4l IxAIcVC0I7IYx2IY6xkF7I0E14v26r4j6F4UMIIF0xvE42xK8VAvwI8IcIk0rVW3JVWrJr 1lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxVW8JVW8JrUvcSsG vfC2KfnxnUUI43ZEXa7IU189N3UUUUU== X-CM-SenderInfo: 5zhl50pqjm3046kxt4xhlfz01xgou0bp/ X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org From: Wei Yongjun 'vc_ctrl_req' is alloced in virtio_crypto_alg_skcipher_close_session(), and should be freed in the invalid ctrl_status->status error handling case. Otherwise there is a memory leak. Fixes: 0756ad15b1fe ("virtio-crypto: use private buffer for control request") Signed-off-by: Wei Yongjun Reviewed-by: Gonglei Acked-by: zhenwei pi Acked-by: Jason Wang --- drivers/crypto/virtio/virtio_crypto_skcipher_algs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/virtio/virtio_crypto_skcipher_algs.c b/drivers/crypto/virtio/virtio_crypto_skcipher_algs.c index e553ccadbcbc..e5876286828b 100644 --- a/drivers/crypto/virtio/virtio_crypto_skcipher_algs.c +++ b/drivers/crypto/virtio/virtio_crypto_skcipher_algs.c @@ -239,7 +239,8 @@ static int virtio_crypto_alg_skcipher_close_session( pr_err("virtio_crypto: Close session failed status: %u, session_id: 0x%llx\n", ctrl_status->status, destroy_session->session_id); - return -EINVAL; + err = -EINVAL; + goto out; } err = 0;