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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 683CFC43219 for ; Tue, 30 Nov 2021 14:55:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243859AbhK3O67 (ORCPT ); Tue, 30 Nov 2021 09:58:59 -0500 Received: from sin.source.kernel.org ([145.40.73.55]:59550 "EHLO sin.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242824AbhK3Ozx (ORCPT ); Tue, 30 Nov 2021 09:55:53 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id DFD3DCE1A61; Tue, 30 Nov 2021 14:52:32 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 254F9C8D183; Tue, 30 Nov 2021 14:52:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1638283951; bh=g2xtFHDDDqGZ65N/h46+t86BVmQAKlSj0QJgegHbjLU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Y3B32DTzjf0RkZRk7UmeDm8ZTcM6eU3aSPkEHr5dKeZ+mw4ajr+FTrCSF2/Xdp0ZC F9vk/akNIktptVDo26iqAED2khqXCkULMrwppJfxJTxvTBN2xkuHP5LB38jlkNqDtt t13z1hDK4ZQtdzqXpNIrtumI9X7vtfyejANhtwBCqOfDjCz3mdkah2x7p9ww0NQCFz QrXhvcLBaM/lV0Bq/YUU3iTbrRaFl/kIIX7GZVJsEVTMa/23dCGosJf4p8vmO7hqHK 9qKzQYWtzw3ci+DKnOtivH+/NA3CeJ3yN5diSBo1zc3ZXKyn4wj2wPJKsRnirBMWN2 vooaz6GQ5gHOw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Maurizio Lombardi , Keith Busch , Sagi Grimberg , John Meneghini , Christoph Hellwig , Sasha Levin , kch@nvidia.com, linux-nvme@lists.infradead.org Subject: [PATCH AUTOSEL 5.4 18/25] nvmet-tcp: fix memory leak when performing a controller reset Date: Tue, 30 Nov 2021 09:51:48 -0500 Message-Id: <20211130145156.946083-18-sashal@kernel.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211130145156.946083-1-sashal@kernel.org> References: <20211130145156.946083-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Maurizio Lombardi [ Upstream commit af21250bb503a02e705b461886321e394b300524 ] If a reset controller is executed while the initiator is performing some I/O the driver may leak the memory allocated for the commands' iovec. Make sure that nvmet_tcp_uninit_data_in_cmds() releases all the memory. Signed-off-by: Maurizio Lombardi Reviewed-by: Keith Busch Reviewed-by: Sagi Grimberg Reviewed-by: John Meneghini Signed-off-by: Christoph Hellwig Signed-off-by: Sasha Levin --- drivers/nvme/target/tcp.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c index d1cb8e78eb415..427de5ad6ded1 100644 --- a/drivers/nvme/target/tcp.c +++ b/drivers/nvme/target/tcp.c @@ -1342,7 +1342,10 @@ static void nvmet_tcp_uninit_data_in_cmds(struct nvmet_tcp_queue *queue) for (i = 0; i < queue->nr_cmds; i++, cmd++) { if (nvmet_tcp_need_data_in(cmd)) - nvmet_tcp_finish_cmd(cmd); + nvmet_req_uninit(&cmd->req); + + nvmet_tcp_unmap_pdu_iovec(cmd); + nvmet_tcp_free_cmd_buffers(cmd); } if (!queue->nr_cmds && nvmet_tcp_need_data_in(&queue->connect)) { -- 2.33.0