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 X-Spam-Level: X-Spam-Status: No, score=-9.5 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 66D8CC4360C for ; Fri, 4 Oct 2019 19:35:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3E2A4215EA for ; Fri, 4 Oct 2019 19:35:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="KfPgoQZi" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729634AbfJDTfE (ORCPT ); Fri, 4 Oct 2019 15:35:04 -0400 Received: from mail-io1-f66.google.com ([209.85.166.66]:36406 "EHLO mail-io1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725932AbfJDTfE (ORCPT ); Fri, 4 Oct 2019 15:35:04 -0400 Received: by mail-io1-f66.google.com with SMTP id b136so16026274iof.3; Fri, 04 Oct 2019 12:35:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=YUxdWoMjBc3fq7ZEjHVbfnvWMNYpsAW2uL8SUTPJJOk=; b=KfPgoQZiuCc2H7qvFQGzN/Y3EGPnFsu/TLq9CSR8tecMTpa9YL5eWsqgES34oDbm/Z tBCmz9oK9X/m4/+VrPKpX573tizGffhrsfpuA+Fq69Y2qLjGgld9HOjAHd01oZ83u+Oe IfpTdiUjqLS2q1WMSLKP4SYO6lGOL2hAK3fuICIkeFaCYYGEBCZ2DyuGyNv2KTqUkk7I KQb1aZ8FaukkgvjqFvRKzmxBX1EAfsP/eODyKd0CEqnIZdQbkd0Y6geyteNUOKSTNqcn /XpZgD+IsGXz2qWx9KTOw6csMacDX9jweaZEo3BHAZO4XGnVw+LP8rKJvYE92arFNI4q +LLA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=YUxdWoMjBc3fq7ZEjHVbfnvWMNYpsAW2uL8SUTPJJOk=; b=MZTiefsa/zD0rlKyJnXaNkjhKxyXM1RPbiOfRsBzjAXppzdpVXEsMuoNuMbb7UL0XD StXE1INBYwfkI73zbAuORpk1uc3QBCg0KUc6/FT8QWdwM6pVw3g0pWbwPcnA3YhdqbTk 0XWZReG3dHpnGJ+HjFibx9C5K2a5pTK2zAXRfXgJvSLWuhLdI26dNRjOdqmwW02tAThC Z86x/deIZhaQiRbpDadvJVNEx7tRQ0TT1d27Rf93LQStQ5vJW01jA5g//b8D5aB1Q4md mqI61eE+ughOjC7Ef3gIldPML4dtt/zOjR45rFV078yk8vaefDXDqdVnXIL309NOfiRj iGPg== X-Gm-Message-State: APjAAAWuXZ3QkwcdijV+oJ20x5WQPqQsko2OjLI/I2ZE5tL5mXtDiZ9P Kn6oGyHFRVspaJiNUH3WmBs= X-Google-Smtp-Source: APXvYqxdxqTqNQ2D2g2hs/N3xw+sie1sFybvZM7Bv8s50eW0Wl4EA5uLHeMeKaifDlU11aRt9jEhKg== X-Received: by 2002:a5d:88d1:: with SMTP id i17mr14654011iol.235.1570217702565; Fri, 04 Oct 2019 12:35:02 -0700 (PDT) Received: from cs-dulles.cs.umn.edu (cs-dulles.cs.umn.edu. [128.101.35.54]) by smtp.googlemail.com with ESMTPSA id t8sm3372621ild.7.2019.10.04.12.35.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Oct 2019 12:35:01 -0700 (PDT) From: Navid Emamdoost Cc: emamd001@umn.edu, kjlu@umn.edu, smccaman@umn.edu, Navid Emamdoost , Herbert Xu , "David S. Miller" , linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] crypto: user - fix memory leak in crypto_reportstat Date: Fri, 4 Oct 2019 14:34:54 -0500 Message-Id: <20191004193455.18348-1-navid.emamdoost@gmail.com> X-Mailer: git-send-email 2.17.1 To: unlisted-recipients:; (no To-header on input) Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org In crypto_reportstat, a new skb is created by nlmsg_new(). This skb is leaked if crypto_reportstat_alg() fails. Required release for skb is added. Fixes: cac5818c25d0 ("crypto: user - Implement a generic crypto statistics") Signed-off-by: Navid Emamdoost --- crypto/crypto_user_stat.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/crypto/crypto_user_stat.c b/crypto/crypto_user_stat.c index 8bad88413de1..1be95432fa23 100644 --- a/crypto/crypto_user_stat.c +++ b/crypto/crypto_user_stat.c @@ -328,8 +328,10 @@ int crypto_reportstat(struct sk_buff *in_skb, struct nlmsghdr *in_nlh, drop_alg: crypto_mod_put(alg); - if (err) + if (err) { + kfree_skb(skb); return err; + } return nlmsg_unicast(net->crypto_nlsk, skb, NETLINK_CB(in_skb).portid); } -- 2.17.1