From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.11]) (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 5C9B839B497 for ; Tue, 14 Apr 2026 08:44:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776156264; cv=none; b=fVF/QEVuaXJLktMB1Y40G0oHwvohJmOUqHanl+XDpP3Ag4msoFf1Dug0+4fkDbaL8+uVIdw8Me+ePhAV8D+xjI0meCdKrXp3RDlGNj9QPqJ8cUYbQ8+RTyYJx5bF1Pg7K8Z0z/c3w8rkPPeJseqZMX86cJUASkAuNdQ1rpCkhBc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776156264; c=relaxed/simple; bh=NpUf33pNRzJv2ubG74WhPL8sHzImSGAjeBTY6v+XzPI=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=uABHpCyQLcYA4LhQ4mR+lmzkcUZ/vECEqyOsl0Yyphi8fz0iI40N+wjWiWbqfHYPCzPBXUsKHq0QphOLZp1Qe+uKEnv8H+2+W5ESWHKPc99hUE0iCfbKOC5OgD0pqHowsrMVoFSoKqTeIDJhFN+WSttwKhovR3k71HDlnaFF2xE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=ipJDmIPA; arc=none smtp.client-ip=198.175.65.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="ipJDmIPA" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1776156262; x=1807692262; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=NpUf33pNRzJv2ubG74WhPL8sHzImSGAjeBTY6v+XzPI=; b=ipJDmIPADoNC4szhEa75R3MV7tNXg+KojMKPE7hF+3lEfceRftftFGsF x7PzmPCsflpUSYNwxAjmUJtVgVlZreVr5YX/xa13V6rRk94sHI2N3rPM8 f9fAA+CgKgtR1cndBgwvNz6+/r2R+utDeCQRNpSVxleO16K8ff3FBeYKJ YCAGT8dszfL56ZW9+dYIBKYuP94P7VYxUtjXjTM8tUY5AdDwH3y8rG4Xz pXL1a6TV9VRgn/6+GKVDtz9jUb0Is52k8LqieHvhB26pMXLMfXjDAQgAB OAcksLawCmCY5ECRnfspGGdxHGdXaasULFj8wUWwZU+W/g/7MuhZLUnPI g==; X-CSE-ConnectionGUID: kgCch0SYTwym96qiBBrBGQ== X-CSE-MsgGUID: hI30yIKNSHOML47CE7LwQw== X-IronPort-AV: E=McAfee;i="6800,10657,11758"; a="87410898" X-IronPort-AV: E=Sophos;i="6.23,179,1770624000"; d="scan'208";a="87410898" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by orvoesa103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Apr 2026 01:44:21 -0700 X-CSE-ConnectionGUID: UkkHo7FxTge38DJZUXI/xQ== X-CSE-MsgGUID: F2pbr0vpRqCYhXmVL+s0Jg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,179,1770624000"; d="scan'208";a="253252056" Received: from pgcooper-mobl3.ger.corp.intel.com (HELO localhost) ([10.245.245.106]) by fmviesa002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Apr 2026 01:44:20 -0700 Date: Tue, 14 Apr 2026 11:44:18 +0300 From: Andy Shevchenko To: Dan Carpenter 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: Organization: Intel Finland Oy - BIC 0357606-4 - c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo On Tue, Apr 14, 2026 at 11:33:22AM +0300, Dan Carpenter wrote: > 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. Wouldn't it be the problem for struct foo { u32 baz[]; }; ? -- With Best Regards, Andy Shevchenko