[{"id":3678457,"web_url":"http://patchwork.ozlabs.org/comment/3678457/","msgid":"<177639361854.3490984.12957233652551599024.git-patchwork-notify@kernel.org>","date":"2026-04-17T02:40:18","subject":"Re: [PATCH v2 net 0/2] net: enetc: fix command BD ring issues","submitter":{"id":80291,"url":"http://patchwork.ozlabs.org/api/people/80291/","name":null,"email":"patchwork-bot+netdevbpf@kernel.org"},"content":"Hello:\n\nThis series was applied to netdev/net.git (main)\nby Jakub Kicinski :\n\nOn Wed, 15 Apr 2026 14:08:31 +0800 you wrote:\n> Currently, the implementation of command BD ring has two issues, one is\n> that the driver may obtain wrong consumer index of the ring, because the\n> driver does not mask out the SBE bit of the CIR value, so a wrong index\n> will be obtained when a SBE error ouccrs. The other one is that the DMA\n> buffer may be used after free. If netc_xmit_ntmp_cmd() times out and\n> returns an error, the pending command is not explicitly aborted, while\n> ntmp_free_data_mem() unconditionally frees the DMA buffer. If the buffer\n> has already been reallocated elsewhere, this may lead to silent memory\n> corruption. Because the hardware eventually processes the pending command\n> and perform a DMA write of the response to the physical address of the\n> freed buffer. So this patch set is to fix these two issues.\n> \n> [...]\n\nHere is the summary with links:\n - [v2,net,1/2] net: enetc: correct the command BD ring consumer index\n https://git.kernel.org/netdev/net/c/759a32900b6f\n - [v2,net,2/2] net: enetc: fix NTMP DMA use-after-free issue\n https://git.kernel.org/netdev/net/c/3cade698881e\n\nYou are awesome, thank you!","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linuxppc-dev@lists.ozlabs.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=nziXgXAE;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org\n (client-ip=2404:9400:21b9:f100::1; helo=lists.ozlabs.org;\n envelope-from=linuxppc-dev+bounces-19819-incoming=patchwork.ozlabs.org@lists.ozlabs.org;\n receiver=patchwork.ozlabs.org)","lists.ozlabs.org;\n arc=none smtp.remote-ip=172.234.252.31","lists.ozlabs.org;\n dmarc=pass (p=quarantine dis=none) header.from=kernel.org","lists.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=nziXgXAE;\n\tdkim-atps=neutral","lists.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org\n (client-ip=172.234.252.31; 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charset=\"utf-8\"","X-Mailing-List":"linuxppc-dev@lists.ozlabs.org","List-Id":"","List-Help":"","List-Owner":"","List-Post":"","List-Archive":",\n ","List-Subscribe":",\n ,\n ","List-Unsubscribe":"","Precedence":"list","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","Subject":"Re: [PATCH v2 net 0/2] net: enetc: fix command BD ring issues","From":"patchwork-bot+netdevbpf@kernel.org","Message-Id":"\n <177639361854.3490984.12957233652551599024.git-patchwork-notify@kernel.org>","Date":"Fri, 17 Apr 2026 02:40:18 +0000","References":"<20260415060833.2303846-1-wei.fang@nxp.com>","In-Reply-To":"<20260415060833.2303846-1-wei.fang@nxp.com>","To":"Wei Fang ","Cc":"claudiu.manoil@nxp.com, vladimir.oltean@nxp.com, xiaoning.wang@nxp.com,\n andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com,\n kuba@kernel.org, pabeni@redhat.com, chleroy@kernel.org,\n netdev@vger.kernel.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev,\n linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org","X-Spam-Status":"No, score=-0.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED,\n\tDKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS\n\tautolearn=disabled version=4.0.1 OzLabs 8","X-Spam-Checker-Version":"SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org"}}]