From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.zeus03.de (zeus03.de [194.117.254.33]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AE1CA212D7C for ; Tue, 29 Apr 2025 05:41:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=194.117.254.33 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745905312; cv=none; b=OlJE/Fm9tKBvXd1ZX8xVk06oYCl1pQdkNjJkFl3qzZAM4zVgrR68yCWvp4WqigW9ODgY9PYTxJyJm4qtybobI7pqP2gB3BGM9oqAxP3rvLEZcrw/+1tOS4fvlrdxtJZGFAWrmhL8Bdb9siFaghCOFKBFqRQyQMCcibzJYtB3y2o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745905312; c=relaxed/simple; bh=LDGEy6BgXcLzexaYRIXjqYYouqaIk/CmA7XWdbGlmjY=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=bFMS7wT2Lg7DTA1OnWcA+DjKA5V41VZBqADUR6qdo2xVBlFeqVNtDe2OB8A3F5XEXpY9t4HflKy6n586MYtX7l+FJd942BU7ztGcmejjuW8JDnOXOBcPwBBvsgmBcGWYXCgN0NvSmsurYq8/QnoDuQWwpbcy08rvAtOobdgemeY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com; spf=pass smtp.mailfrom=sang-engineering.com; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b=jI3gB2HA; arc=none smtp.client-ip=194.117.254.33 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b="jI3gB2HA" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= sang-engineering.com; h=date:from:to:cc:subject:message-id :references:mime-version:content-type:in-reply-to; s=k1; bh=G96w HknFvMDYs9Me2VS4zcAoceHRxCX4C1FN4jhCjms=; b=jI3gB2HAzkOIzAXdfgGl 33CBhnQRcgr6MTIAw422tJwPkuKCftn8g/G1kt2/im1vO537D2UTdtIdbP8rFegk TiG7xoNytx8chHE/vwJ22D/AQcr/WrXOLm0P3MmeB/ZwFy+RVRTeoNISNF12OIbM fUH290VXsdQ8bOalrr0iwEjBpFLcYmFA+bN4QK92DRiCdma1s6FzASvPbwEdB02H cfnS3igiEQuT5ZpHT/sW0aSC1Mm5fBjswjJHel1WyzRXFZcG9lZw6WBHjx/D77ST UYYoLgsQY9l23RqYHuWsqVPUbV0b8AYxSHwR5BqkIrrroINUJDkxPW3f3sCDCagX MQ== Received: (qmail 127660 invoked from network); 29 Apr 2025 07:41:45 +0200 Received: by mail.zeus03.de with UTF8SMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 29 Apr 2025 07:41:45 +0200 X-UD-Smtp-Session: l3s3148p1@wKKHQeQz2Ocujnsd Date: Tue, 29 Apr 2025 07:41:44 +0200 From: Wolfram Sang To: Akhil R Cc: Andi Shyti , Laxman Dewangan , "digetx@gmail.com" , "thierry.reding@gmail.com" , Jon Hunter , "wsa@kernel.org" , "linux-i2c@vger.kernel.org" , "linux-tegra@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Thierry Reding Subject: Re: [PATCH v2 RESEND] i2c: tegra: check msg length in SMBUS block read Message-ID: Mail-Followup-To: Wolfram Sang , Akhil R , Andi Shyti , Laxman Dewangan , "digetx@gmail.com" , "thierry.reding@gmail.com" , Jon Hunter , "wsa@kernel.org" , "linux-i2c@vger.kernel.org" , "linux-tegra@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Thierry Reding References: <20250424053320.19211-1-akhilrajeev@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="LKcIhL0cHU9e9mjD" Content-Disposition: inline In-Reply-To: --LKcIhL0cHU9e9mjD Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi Akhil, > Yes. We have had issues where the client device sends '0' as length if the Can you reveal which client that is? > transfer is terminated abruptly at the client's side. The actual fix is in the client's > driver, but this check here would ensure that the master does not run into > trouble either. Correct. Happy hacking! Wolfram --LKcIhL0cHU9e9mjD Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmgQZpQACgkQFA3kzBSg KbYwVg/+Ls0ETpDPvjbXAvPTPGrLr4B1aAcdbJxiAEbIpx2BoU1NlrNi1muKcM9u 9Cj+Xb+69BqlTuo8O4yup6pfd1aCe5MMejxLFkaoYxCbXRFSiFEbRHrPN7Le+LE9 YrWR92ER5yy+XOKMWikfdHEcvGHy+emvurGfcmrrtykvl2lJ6ux1MoMbC7os7ky5 P4UM7RFBuVVAhH8RCQHkhvE8ZJKGI8rA3HWGIMDIch+iiczzYaHPfuC9odYkRzZb RJSXaQFx/x4MQQ9MnbKwym96z6REcjXBIVMBssLexbQbP8odf76QomTO+wPegjts 4GYKTgAi4mpTFeJ2mXk3A2hUuM8fF00szDhWc7obNLZdQtDe/wkxnsdWeQlbrMqP yo0f5nlhxP5guGV/Ofi5V7hkjDZ4iOY8ArACXqViUjRtV7ePJXr/PMRTnVKuz64T 4j2pacdY7uazHVCesI867Zc37dB7pVbwbORnNnO4L6n+8x9sriO5Bvms96AdSs7W /kID7Gn1RnHc8L3vjnDTMKh+TY7pW/SRATQ+P8qIF8ewtuYBoiIvHMs7IaJq1uv+ H/lrZ9Z3ysabkr09nqQS9k+ZZTfE7S6+878a2GGD5/T+/b4OyedD2uMvnDyf3pLK nEyy26Lwz1h8qj1cpSFRNkmd5ZIJu8ugW6rxtBt3Y7XqgK6G7wE= =JRhs -----END PGP SIGNATURE----- --LKcIhL0cHU9e9mjD--