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 398CE253946 for ; Wed, 21 May 2025 10:22:59 +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=1747822982; cv=none; b=TWghxTE9ucqEMsE7xjYIot1Qc7vWrFnOR5E1PyWatXF2ZP2ac2rnZs7l/eDnyUHF0dJuw7lgzK8upPYZedFVM9zCSq8LNNkJEnSlO91a2d9tZcfk/GteR1ytCc73tU/hdD7/rIDEGqE8EJlZJyKy9NDVGbPortAFlnVMwRy2JrA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747822982; c=relaxed/simple; bh=vMrbMPmnr66D9MoRLd3wHyOxUmuR8XEX65gucSkKivc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=otojfxPCaXj888pQn4Ly4pmHNpV8vP0bbfQAslHmcHlb5NLsIRUTXmWIF804GjjYWlzZiPzbCWcRpJbcvBO1BAhjxSnuYwdABSIEVIZaCTvIDsI/uqF3M8nEDp1X0yK0wfAt1otiper3qypvd1/vNWWuq1LXcXxD5TVMHlhsUFE= 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=a7Gn+EEu; 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="a7Gn+EEu" 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=IiAE xulbZyheoKVtSlmVQX3HQ/jEp/zeXoCUKpIHZ2E=; b=a7Gn+EEu/1STHTI4mszW gti3C85BEwbaGL7CS6zbwEoiuqKOu3fh17VbDQYVEGEE6Jc1mHbxBx/fqGS3oFG+ SOOujXbnRcWy33F/YMuzrexsb1h2UwhjH/Gc2oH2mkklAMgjydc9A+hGKN6MAnEi VCcV70+R69jpjlSnkKeA1Pi/XxfzhGEjoTYAFxJepII99KxFG4GH/d7/t3GD6fAo K4IZe2rcMCVh7vAXmJcJtyrnFRxlDQUOjMdmd+2dURBJVPFdYXs6tB2MFrT1OUu6 smqt1ct0fCLCEGluitAuCrEzFmJO220FXyBDpSZmsuMMOGtWt1lGDEhAutJ059Yo Gg== Received: (qmail 3220941 invoked from network); 21 May 2025 12:22:57 +0200 Received: by mail.zeus03.de with UTF8SMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 21 May 2025 12:22:57 +0200 X-UD-Smtp-Session: l3s3148p1@dH+yv6I1pJtehhrc Date: Wed, 21 May 2025 12:22:57 +0200 From: Wolfram Sang To: Nikita Zhandarovich Cc: Mauro Carvalho Chehab , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, syzbot+721071c10f3c7e4e5dcb@syzkaller.appspotmail.com, lvc-project@linuxtesting.org, Alan Stern , gregkh@linuxfoundation.org Subject: Re: [PATCH v2] media: dvb-usb-v2: disallow 0-length I2C reads Message-ID: Mail-Followup-To: Wolfram Sang , Nikita Zhandarovich , Mauro Carvalho Chehab , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, syzbot+721071c10f3c7e4e5dcb@syzkaller.appspotmail.com, lvc-project@linuxtesting.org, Alan Stern , gregkh@linuxfoundation.org References: <20250520135216.2509505-1-n.zhandarovich@fintech.ru> Precedence: bulk X-Mailing-List: linux-media@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="SlaYVM44ag2fg58z" Content-Disposition: inline In-Reply-To: <20250520135216.2509505-1-n.zhandarovich@fintech.ru> --SlaYVM44ag2fg58z Content-Type: text/plain; charset=us-ascii Content-Disposition: inline > +static const struct i2c_adapter_quirks i2c_usb_quirks = { > + .flags = I2C_AQ_NO_ZERO_LEN_READ, > +}; Maybe it makes sense to add a comment like /* would create an invalid usb_control_msg */ ? --SlaYVM44ag2fg58z Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmgtqX0ACgkQFA3kzBSg KbYFkA//QtjXiEHB24k7NBXnmE35+1sEdGGUJqw/W7Iaz3QNZnt7saB77mtzREH+ jO7mzm92Pw5cc6cniRBK8FFJNguhexzASi6yKWJEmNKeiLUzEclX2+ZB6XVOBftx p/8J8m0oezpnbGUmPkVL3hOsa0gLGS+84SzhLGSWITGNSvCumPlCjTUXcje4CZJ3 En+Ugla9BODJ4KiidLDQY1x3q6L5y4j3AHvYmq9L77hAKNWquEGs/MR5ERUMnY1Q txKoZ5jIsWV/U6f80TsxBozANkHFboZoibMsxYPamkFCdA/P2xOQeDTby7t2s7Ro E8Bbg4aMiqFISGzVvqXXb1O7MJctlrcE1b8B7xMhTGE/5AocHPGFEM0kNktTuuYX W9YWrGcQRAWg7mzpQvPLsdFAcjzZ4L7lYfqg+8QX8v4X8Sp0+YVwqBt/+IaqE8dZ Nidv6TeyjCdJUFwouEcZjsSU7LeZrOKurIlnjuHasF+UEnkOdnRsHvNQliON+3+z Sby9abOZ4uVFLGpn+4Is8p5yiSNfJfO9VI/GSRzYieajl0kxjlw9p/va78pGz5da hnlclcxc+o3H169XKy4gomTtwSYl/sgpeer0Xag4X2N3fYsJB104OoltOwLH25rx u1eXOxdO2UN4ZGaKVKKK5VlVElGeF/AZADs0pxYZx4D+MkeYnXU= =af27 -----END PGP SIGNATURE----- --SlaYVM44ag2fg58z--