From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-f49.google.com (mail-wr1-f49.google.com [209.85.221.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 454AE3A4527 for ; Tue, 14 Apr 2026 08:33:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.49 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776155612; cv=none; b=GI3ZTsZPM3zJW/bXUU3kmZqtQhxYg4U6rAT7kFzx3eC+UfpYu36fKhpcbLnYtyqrOiAVJCdp8/LGO5RZu9wtehDkoChp9z17aoUxo91g0oHT94jnnspNt6iWCAyKpq0OaJBAbTMU3EUmPYk9f/fH+FG93BMVuasw0FllQ31dzhc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776155612; c=relaxed/simple; bh=T23ocOb3hJrpEyXeDyzy+yRX+M3NaqeBUnlq2hnGA6U=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ZaK5sHfIXZJFNgFC4Gbu35tswvQixPxNcNBD9dRQVl3BuJcJCPpE0/wIAobtVev72oBIk5Y/6ZdMV60tDUTTm4tgu5mqkFAYIyKe6Dab6UstkXfWoQTl5BBlnpaxelTyw4Q6aTAPWhhKYK0rx6dETchvyDSU0BDiuybMXHfd9KE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=HZ4ltVS8; arc=none smtp.client-ip=209.85.221.49 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="HZ4ltVS8" Received: by mail-wr1-f49.google.com with SMTP id ffacd0b85a97d-43d01d6b50cso5370426f8f.1 for ; Tue, 14 Apr 2026 01:33:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1776155610; x=1776760410; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=T23ocOb3hJrpEyXeDyzy+yRX+M3NaqeBUnlq2hnGA6U=; b=HZ4ltVS8ypH7zEiQYUYlqUB2SdJMmT76NAZWdFYj9NgXObRdG9M4NEoea1AUHduYby 0Bv7h5u9JhrScBMVRLD4F+z+e8cEG75CWdnTh0OyN8YtyjGfiWTXBgcAmQkNXY6Bf/1Y wRFYpudM2ARhHSNfNZV5JnsB0vv9ZTlC1cSPh0OV0X1Gjw/EkA/IZcjMPlob5vIcYvgn xC2ptrsTHawxXP2Qe2EWUr0YjcQVMt488al7g0Q6PPQ2NpTD2lN8kPzrlvw97nCz4NGr y4IdhyN9fojtuBqHjSdnjghX1P0XJmG0orY08pkfwKzxVpBQKhNTgLBnMBTJvhb49x+Q F3cA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1776155610; x=1776760410; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=T23ocOb3hJrpEyXeDyzy+yRX+M3NaqeBUnlq2hnGA6U=; b=qGTpmhcLdcDYIPEDSW0e7uoLWU2/bSqfdmyTOgRnOHbHFn4MenT5PzA6u11V4B9nT+ uUdkZCS1bApoEC9FzdB4kiiaj3iKarqwHsAnRLbjAhGudDnWtkOn8P/6TUbSujc/NvIG l5B8kpBTa79cjgPIIrnTl+z+QxxFrAll0M5Sp4mosRJM5G+Gcb1mJuO4QaLc7YPCgP0l L5vsuXJe7E9FZvHEMpYWKmk8pPYVUhTSW0KIL68aqEjNP5tz3kIs9QIX1o1F6GoHFmR5 t6u93gquF0Eb8Yg8+4o+vRCPNHcanIVdxtRmJR0wkmbby2uHUa/SO94lhWN6qr6hdRoY 9qtQ== X-Forwarded-Encrypted: i=1; AFNElJ8HCHNp2PvRqtWt0H0ztTl03MY5CXX8OIM7BVllxbvkG82yfl9cAeZ0pZjWdFDYvKQ08aPmLQt+tAj3B40=@vger.kernel.org X-Gm-Message-State: AOJu0YygEzso8SQVCYvPxQMCYM5QO2+EHAHKEJyksoilcBO7hfgM2kBs WrMAQV8NE48CQ6vS5+B/rWrufYRd/GTlFF5HpTqJ6hj/OpGlwykTZqt5 X-Gm-Gg: AeBDiesdjvX751rvrP7o067a3T0PehKCkevazmcUnyP2UhXHlSsyr0kNuyFv8FV3706 N3/AQCt3sLHoThzj+/SgL5ekKu8L44nQ/gTLWdP7e6E8XOOxjqX9Y71YQYqv3UuSK3YIy0IVZC3 0rkbnn0W/2tS3j7k5O7/PzJuKCmFFH2xI6ALRvvSW7qkmY2hN/EsvHTkQMfOqvUMr61vtNQ46DR W7E04F9R4rRMMtxo1WdW2NKDqWr8JAf+t4sTUMV7Q5L73zi61l8OXMmgNM+prM+AguhAD1vGT/3 +GH3iGbBVsj+eNbgN8dbyxX0v+VyMDDFgd8llhAAWAE/vffrvGM5NDcS7Kr6tkpEeKbRODHh7Zw UoJLtSxZp7gKLkadWcsJqhZWS2XzD6oF5bXQ41TxU1GynCiIVgQY/RwEnZ6ruw26WhJWfVilxqG 5e5PdDE6rsxxNVxVxV X-Received: by 2002:a05:6000:4021:b0:43d:7854:32ec with SMTP id ffacd0b85a97d-43d785433bcmr10582621f8f.17.1776155609520; Tue, 14 Apr 2026 01:33:29 -0700 (PDT) Received: from localhost ([41.210.143.51]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-43d7d5812dcsm9175539f8f.32.2026.04.14.01.33.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 14 Apr 2026 01:33:28 -0700 (PDT) Date: Tue, 14 Apr 2026 11:33:22 +0300 From: Dan Carpenter To: Andy Shevchenko Cc: Shyam Sunder Reddy Padira , gregkh@linuxfoundation.org, ethantidmore06@gmail.com, nayana.mariyappa@gmail.com, s9430939@naver.com, kees@kernel.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3] staging: rtl8723bs: os_dep: avoid NULL pointer dereference in rtw_cbuf_alloc Message-ID: References: <20260413224417.5674-2-shyamsunderreddypadira@gmail.com> <20260414071308.4781-2-shyamsunderreddypadira@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Really _obj() can't be ZERO_SIZE_PTR either, or if they are then it's very difficult to dereference them since they don't have any struct members. The main way that ZERO_SIZE_PTR bugs show up is with strings and NUL terminators. regards, dan carpenter