From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=198.175.65.17 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793214033; b=B3X7wPbXYT3U8kS4hAjLpT6mkXRV5kbjSXq/Ca7ZNrKOdtF4VHfjzUt4sVSU8Xxm7aPa RDoiLnCuTlb06Q/OrFgmDWJcQz5iOT4ajBrDNKKV3rCaNCb+EHEWVq2MdoqBk5VKcTOcR GyYaRQkED2gHvB0N5iH116/SD/FeoLrQuXG6sr3w3mGIKmIf99/E0rhjZ8m/snnVWVMst AeP4rA3nNPx31ID8zakOe+4ltYxuUsz7GCd0ZggiBOVlAMlo3LtDoYVWLE74UFXTRMTKP n4NMlLCZktJI8tX0IyC/0jDOVXly2rtE1kYGhUL9OJbAcWJ2r+pb2yeeM2OT6LkLusw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793214033; h=DMARC-Filter:DKIM-Signature:X-CSE-ConnectionGUID:X-CSE-MsgGUID: X-IronPort-AV:X-IronPort-AV:Received:X-CSE-ConnectionGUID: X-CSE-MsgGUID:X-ExtLoop1:X-IronPort-AV:Received:Received:Date:From:To: Cc:Subject:Message-ID:References:MIME-Version:Content-Type: Content-Disposition:In-Reply-To; bh=0SF6Z6fkYcC3mNc32hQG4riaKfE87q4Tb0lTvxci1qc=; b=BtN5TInc7hPW8ZBGfgAH8Ru6mNFEbAabxrhceJWw864g2AHkIhlos7nxNzDW64+mr2dQ SKYqiObjohWLK2krwtDLDBeBWGOcsSDhudtGLaGRlgjrzcLlHkXxPNqQZOoXVF7usSHkr NY98ZJSiKY3gOq4AtIr94VsAO+jMyXhl0kf9dUyFRJ64+41zZGG2c7dG5Xgvlnnm85Oxv d+re6CsdHq2TANdiDmDN/U4sIBmJBGFq39XUrSN6Yr4/tiEe24BpZ0Z5fTah3p/S1YoM5 T/ZrMwvYcrjZLaNaWA21aFSXkLVJiqJ1TV0dlcdRTXZVfx/Sk0+nXdUqQWspR76FtWw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=G1xQ1Pcd; arc=none smtp.remote-ip=198.175.65.17 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 873C6606A321; Wed, 28 Oct 2026 19:00:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 873C6606A321 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, unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=G1xQ1Pcd DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1793214028; x=1824750028; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=SvF0qrPpa1mze0SmaiTONN6P7h8s1a5USFeiNzRZx70=; b=G1xQ1PcdgHcFibQvoVcLBrnyrlkHd3ndAtpC/bodAco4iVZSYvpVMoNG Jqyqog5aFte9V58AmllbEk64yKbqPEUH3QySzZ92U+pPJ4X6DayrRTLnT 4jRAR0NcAva4E4Fa1u5mmDBgWmg+rFzgdHkGPwUsM6cZK2UqbdLLZ2Pbw lz+tNxaQVt1VEf5McV9mvE6akgMjtc1B3K43IlGep2ifh0/LFc/IaN/9k 3CaAbj0IqVoP/kb5PLv6st8g9MZWBYrX4nGOvnMq0MPZmMN6QxEjUcl3E 8o/kjINzaI8tvrxWttcACZyRX3aNQenoTzsJw2bHE/cC/Viu2YejCA9NH w==; X-CSE-ConnectionGUID: y9BkPTHAR8Ong9nD2Mps8g== X-CSE-MsgGUID: npGtg7aZTUGVTXqyCn6qUw== X-IronPort-AV: E=McAfee;i="6800,10657,11949"; a="1962913" X-IronPort-AV: E=Sophos;i="6.27,183,1787036400"; d="scan'208";a="1962913" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by orvoesa109.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Oct 2026 11:59:47 -0700 X-CSE-ConnectionGUID: kAwP7TzjT2a7K5T1rBaG6Q== X-CSE-MsgGUID: zEn4UmG8RQ6ShkL/enzcxg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,183,1787036400"; d="scan'208";a="4789786" Received: from lkp-server01.sh.intel.com (HELO 0caa9d2d175c) ([10.239.97.150]) by orviesa008.jf.intel.com with ESMTP; 28 Oct 2026 11:59:44 -0700 Received: from kbuild by 0caa9d2d175c with local (Exim 4.98.2) (envelope-from ) id 1xM8s9-00000000Z8O-0v7S; Wed, 28 Oct 2026 18:59:41 +0000 Date: Thu, 29 Oct 2026 02:58:42 +0800 From: kernel test robot To: Henry Martin , Paulo Alcantara , Namjae Jeon , Ronnie Sahlberg , Shyam Prasad N , Tom Talpey , Bharath SM Cc: oe-kbuild-all@lists.linux.dev, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-kernel@vger.kernel.org, Henry Martin , stable@vger.kernel.org Subject: Re: [PATCH] cifs: fix UAF read of server->hostname in cifs_get_spnego_key() Message-ID: <202610290208.vMXHYOZa-lkp@intel.com> References: <20261027150438.943354-1-bsdhenrymartin@gmail.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261027150438.943354-1-bsdhenrymartin@gmail.com> Hi Henry, kernel test robot noticed the following build warnings: [auto build test WARNING on manguebit/cifs-next] [also build test WARNING on manguebit/cifs-fixes linus/master v7.3 next-20261027] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Henry-Martin/cifs-fix-UAF-read-of-server-hostname-in-cifs_get_spnego_key/20261027-230438 base: https://git.manguebit.org/linux.git cifs-next patch link: https://lore.kernel.org/r/20261027150438.943354-1-bsdhenrymartin%40gmail.com patch subject: [PATCH] cifs: fix UAF read of server->hostname in cifs_get_spnego_key() config: arm-allyesconfig (https://download.01.org/0day-ci/archive/20261029/202610290208.vMXHYOZa-lkp@intel.com/config) compiler: arm-linux-gnueabi-gcc (GCC) 16.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261029/202610290208.vMXHYOZa-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202610290208.vMXHYOZa-lkp@intel.com/ All warnings (new ones prefixed by >>): fs/smb/client/cifs_spnego.c: In function 'cifs_get_spnego_key': >> fs/smb/client/cifs_spnego.c:199:1: warning: the frame size of 1304 bytes is larger than 1280 bytes [-Wframe-larger-than=] 199 | } | ^ vim +199 fs/smb/client/cifs_spnego.c f1d662a7d5e532 fs/cifs/cifs_spnego.c Steve French 2007-11-05 195 f1d662a7d5e532 fs/cifs/cifs_spnego.c Steve French 2007-11-05 196 out: f1d662a7d5e532 fs/cifs/cifs_spnego.c Steve French 2007-11-05 197 kfree(description); f1d662a7d5e532 fs/cifs/cifs_spnego.c Steve French 2007-11-05 198 return spnego_key; f1d662a7d5e532 fs/cifs/cifs_spnego.c Steve French 2007-11-05 @199 } b74cb9a80268be fs/cifs/cifs_spnego.c Sachin Prabhu 2016-05-17 200 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki