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X-IronPort-AV: E=McAfee;i="6600,9927,10936"; a="15140589" X-IronPort-AV: E=Sophos;i="6.04,310,1695711600"; d="scan'208";a="15140589" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Dec 2023 10:20:24 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10936"; a="848740859" X-IronPort-AV: E=Sophos;i="6.04,310,1695711600"; d="scan'208";a="848740859" Received: from lkp-server02.sh.intel.com (HELO b07ab15da5fe) ([10.239.97.151]) by fmsmga004.fm.intel.com with ESMTP; 27 Dec 2023 10:20:21 -0800 Received: from kbuild by b07ab15da5fe with local (Exim 4.96) (envelope-from ) id 1rIYVv-000Fez-2M; Wed, 27 Dec 2023 18:20:19 +0000 Date: Thu, 28 Dec 2023 02:19:51 +0800 From: kernel test robot To: andrey.konovalov@linux.dev, Marco Elver , Andrew Morton Cc: oe-kbuild-all@lists.linux.dev, Linux Memory Management List , Andrey Konovalov , Alexander Potapenko , Dmitry Vyukov , Andrey Ryabinin , kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH mm] kasan: stop leaking stack trace handles Message-ID: <202312280213.6j147JJb-lkp@intel.com> References: <20231226225121.235865-1-andrey.konovalov@linux.dev> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231226225121.235865-1-andrey.konovalov@linux.dev> X-Rspam-User: X-Stat-Signature: 64futf1mnb64sskx75ba43boj6pctpbb X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: E7175A0024 X-HE-Tag: 1703701246-805406 X-HE-Meta: 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 NJeEu1mK qfs7rwMFcnQAE/EFQ7wASFriFU2uthvSEbAlAQ0f2SmLIsdBvZKsRTH3l2zbGvC4ZUHerGVskEK+oCZ1ffsZhI1vGvPgsYTMG7AvGpyS05Xl1kQ0ivd5Xs9zA1su0VFP5BJE9S2/twRCfOXJiryCch87jvkENcKiMbQbHaAe71Fx7bZG7ggAQSf549s82txMoyIc5GV9pZbjFl9OftBo2KVhkN3sr6UpNEWtqc0SzDC0r0BmD0Rq4/7GR2i1uw/S9x23ot4nMJFi8bC8MdvSvUEaFC2yB0THR3AkucmvFec8hNeDEZ4snhZ4P03TSXIrpzi5DvhbUbvjTWo1FiwJqfbs5vYrCx1eLqptnCLNdrI43VN0+n4R/CaUL1XRWf/5ebi/LOoSOjtIZiFrsAgFBfzDn50B3ml+HAhJWJjINtf/NiDQgTlVXslA2Iw== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] [cannot apply to linus/master v6.7-rc7 next-20231222] [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/andrey-konovalov-linux-dev/kasan-stop-leaking-stack-trace-handles/20231227-065314 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20231226225121.235865-1-andrey.konovalov%40linux.dev patch subject: [PATCH mm] kasan: stop leaking stack trace handles config: x86_64-randconfig-123-20231227 (https://download.01.org/0day-ci/archive/20231228/202312280213.6j147JJb-lkp@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231228/202312280213.6j147JJb-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/202312280213.6j147JJb-lkp@intel.com/ All warnings (new ones prefixed by >>): >> mm/kasan/generic.c:506:6: warning: no previous prototype for 'release_alloc_meta' [-Wmissing-prototypes] 506 | void release_alloc_meta(struct kasan_alloc_meta *meta) | ^~~~~~~~~~~~~~~~~~ >> mm/kasan/generic.c:517:6: warning: no previous prototype for 'release_free_meta' [-Wmissing-prototypes] 517 | void release_free_meta(const void *object, struct kasan_free_meta *meta) | ^~~~~~~~~~~~~~~~~ vim +/release_alloc_meta +506 mm/kasan/generic.c 505 > 506 void release_alloc_meta(struct kasan_alloc_meta *meta) 507 { 508 /* Evict the stack traces from stack depot. */ 509 stack_depot_put(meta->alloc_track.stack); 510 stack_depot_put(meta->aux_stack[0]); 511 stack_depot_put(meta->aux_stack[1]); 512 513 /* Zero out alloc meta to mark it as invalid. */ 514 __memset(meta, 0, sizeof(*meta)); 515 } 516 > 517 void release_free_meta(const void *object, struct kasan_free_meta *meta) 518 { 519 /* Check if free meta is valid. */ 520 if (*(u8 *)kasan_mem_to_shadow(object) != KASAN_SLAB_FREE_META) 521 return; 522 523 /* Evict the stack trace from the stack depot. */ 524 stack_depot_put(meta->free_track.stack); 525 526 /* Mark free meta as invalid. */ 527 *(u8 *)kasan_mem_to_shadow(object) = KASAN_SLAB_FREE; 528 } 529 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki