Received: by 2002:a05:6a10:1d13:0:0:0:0 with SMTP id pp19csp1282048pxb; Tue, 17 Aug 2021 08:04:51 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxxoebKNh7+PmRlwtw6WsxYgToNX2Au/OBTToUrRnU9hJIydrVjKlG0uW6896+OGrkxL0EG X-Received: by 2002:a50:9e87:: with SMTP id a7mr4589849edf.202.1629212691472; Tue, 17 Aug 2021 08:04:51 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1629212691; cv=none; d=google.com; s=arc-20160816; b=Br9xI73MUzTRIRISiuktxyeJfku6c2ch6/ds0KDNKGSMLfUT6rui/drISfJj/HKAaV R+3y30WsY0f7/tglpPiTGvNR0kDCajp0CRoi1hGKqZjG7ScNpMMuYlAeENmMB3ZfggNl GAjdheUdEot9c9rfiVxMr38TfsoeJsiuVzQH6jrZfv21K0Wotgc5Jr98hk2L81nExsPJ FizXvQoB8JUSYyt38GEmgOM6LT3lyaaadXdq73YqoNMrkJeuNAdhfaDYpqNF7q3okagA a71Sx2FFaxev6cgO7Ys4FagO9zSrPsoYWD4pq2cp620bfoHOieP+DgCnIYQPdP2aguQx uSjQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:message-id:date:subject:cc:to:from; bh=nqrBJYSHjtydYVXiiNB6x76Fqt8hBsaqocL3VZRfOIA=; b=lSsvwmv+PFVurtBfqVyqoZvs6xFXrsz/15v4Gzl938Kv8nnWnfsSSIP9GgQIBmjVej MgrQu7GftiK7UPMybqIOhKPh1YDbITqHMZLxJeSjrq0iFv2Jz82n1e9q16RToqIUDkUm IommM/bQMs0e9KGfjO6VWw8AnACNy3nmDPbUp/FolD3z/k0tOMXgi8Bu7ofLgIt7d51C jjzrMiamAdL3zoW15u49hynTz9CJFEHvbh0M/Q/eG06mgK4dHbqBZbWNAMbTOOecJv7w uKYnQVUldYjnUUJJjk2VTGGGYJM95GAqqB6YaTeg6LTmhS/6Uz3EbEDQJSen6fq+yfu4 JSTw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=sangfor.com.cn Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id l1si2784505ejo.68.2021.08.17.08.04.21; Tue, 17 Aug 2021 08:04:51 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=sangfor.com.cn Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240102AbhHQPCI (ORCPT + 99 others); Tue, 17 Aug 2021 11:02:08 -0400 Received: from mail-m17642.qiye.163.com ([59.111.176.42]:38732 "EHLO mail-m17642.qiye.163.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232705AbhHQPCH (ORCPT ); Tue, 17 Aug 2021 11:02:07 -0400 X-Greylist: delayed 341 seconds by postgrey-1.27 at vger.kernel.org; Tue, 17 Aug 2021 11:02:06 EDT Received: from localhost.localdomain (unknown [119.136.90.116]) by mail-m17642.qiye.163.com (Hmail) with ESMTPA id EB46D22014E; Tue, 17 Aug 2021 22:55:48 +0800 (CST) From: Ding Hui To: sfrench@samba.org Cc: linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-kernel@vger.kernel.org, Ding Hui Subject: [PATCH] cifs: fix wrong release in sess_alloc_buffer() failed path Date: Tue, 17 Aug 2021 22:55:10 +0800 Message-Id: <20210817145510.639-1-dinghui@sangfor.com.cn> X-Mailer: git-send-email 2.17.1 X-HM-Spam-Status: e1kfGhgUHx5ZQUtXWQgPGg8OCBgUHx5ZQUlOS1dZCBgUCR5ZQVlLVUtZV1 kWDxoPAgseWUFZKDYvK1lXWShZQUhPN1dZLVlBSVdZDwkaFQgSH1lBWUMZSxlWGR4aGkIfGUNLGE tMVRMBExYaEhckFA4PWVdZFhoPEhUdFFlBWU9LSFVKSktISkNVS1kG X-HM-Sender-Digest: e1kMHhlZQR0aFwgeV1kSHx4VD1lBWUc6Oi46Pjo*Iz9JHxIrSwsDKB0X LykaCkJVSlVKTUlCSUpJSk9CTk9KVTMWGhIXVR8SFRwTDhI7CBoVHB0UCVUYFBZVGBVFWVdZEgtZ QVlKSkJVSkhNVUJLVUpKTVlXWQgBWUFKT01PNwY+ X-HM-Tid: 0a7b549c8571d998kuwseb46d22014e Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org smb_buf is allocated by small_smb_init_no_tc(), and buf type is CIFS_SMALL_BUFFER, so we should use cifs_small_buf_release() to release it in failed path. Signed-off-by: Ding Hui --- fs/cifs/sess.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index c5785fd3f52e..606fd7d6cb71 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -877,7 +877,7 @@ sess_alloc_buffer(struct sess_data *sess_data, int wct) return 0; out_free_smb_buf: - kfree(smb_buf); + cifs_small_buf_release(smb_buf); sess_data->iov[0].iov_base = NULL; sess_data->iov[0].iov_len = 0; sess_data->buf0_type = CIFS_NO_BUFFER; -- 2.17.1