From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5A357C7EE23 for ; Wed, 7 Jun 2023 20:00:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232432AbjFGUA6 (ORCPT ); Wed, 7 Jun 2023 16:00:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34364 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232291AbjFGUAU (ORCPT ); Wed, 7 Jun 2023 16:00:20 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 06A4F2111; Wed, 7 Jun 2023 13:00:17 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id DC0F563446; Wed, 7 Jun 2023 20:00:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 43160C433D2; Wed, 7 Jun 2023 20:00:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1686168016; bh=CjfdLFBJMUDtjSx4cXIZ6RFQh0tNQ3i1JELcez5drTI=; h=Date:To:From:Subject:From; b=A9j0PWZsvydSiX+Rih+MWq/PJesu0cnnEWlpI+3YpVupUykXL0GplgyXT35UDF1Kd K5GvGHO8HT06tWR9iNNgErEKxBEyTJ852Veb+gEvf/i5MHOwnYjRjThkA/DA6JnBHR bL+KbvEAGpJE4ehv9qFaWT93sSQGO+W6eAnn3EGc= Date: Wed, 07 Jun 2023 13:00:15 -0700 To: mm-commits@vger.kernel.org, stable@vger.kernel.org, sj@kernel.org, wangkefeng.wang@huawei.com, akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-hotfixes-stable] mm-damon-core-fix-divide-error-in-damon_nr_accesses_to_accesses_bp.patch removed from -mm tree Message-Id: <20230607200016.43160C433D2@smtp.kernel.org> Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org The quilt patch titled Subject: mm/damon/core: fix divide error in damon_nr_accesses_to_accesses_bp() has been removed from the -mm tree. Its filename was mm-damon-core-fix-divide-error-in-damon_nr_accesses_to_accesses_bp.patch This patch was dropped because it was merged into the mm-hotfixes-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Kefeng Wang Subject: mm/damon/core: fix divide error in damon_nr_accesses_to_accesses_bp() Date: Sat, 27 May 2023 11:21:01 +0800 If 'aggr_interval' is smaller than 'sample_interval', max_nr_accesses in damon_nr_accesses_to_accesses_bp() becomes zero which leads to divide error, let's validate the values of them in damon_set_attrs() to fix it, which similar to others attrs check. Link: https://lkml.kernel.org/r/20230527032101.167788-1-wangkefeng.wang@huawei.com Fixes: 2f5bef5a590b ("mm/damon/core: update monitoring results for new monitoring attributes") Reported-by: syzbot+841a46899768ec7bec67@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=841a46899768ec7bec67 Link: https://lore.kernel.org/damon/00000000000055fc4e05fc975bc2@google.com/ Reviewed-by: SeongJae Park Signed-off-by: Kefeng Wang Cc: Signed-off-by: Andrew Morton --- mm/damon/core.c | 2 ++ 1 file changed, 2 insertions(+) --- a/mm/damon/core.c~mm-damon-core-fix-divide-error-in-damon_nr_accesses_to_accesses_bp +++ a/mm/damon/core.c @@ -551,6 +551,8 @@ int damon_set_attrs(struct damon_ctx *ct return -EINVAL; if (attrs->min_nr_regions > attrs->max_nr_regions) return -EINVAL; + if (attrs->sample_interval > attrs->aggr_interval) + return -EINVAL; damon_update_monitoring_results(ctx, attrs); ctx->attrs = *attrs; _ Patches currently in -mm which might be from wangkefeng.wang@huawei.com are mm-memory_failure-move-memory_failure_attr_group-under-memory_failure.patch mm-memory-failure-move-sysctl-register-in-memory_failure_init.patch mm-page_alloc-move-mirrored_kernelcore-into-mm_initc.patch mm-page_alloc-move-init_on_alloc-free-into-mm_initc.patch mm-page_alloc-move-set_zone_contiguous-into-mm_initc.patch mm-page_alloc-collect-mem-statistic-into-show_memc.patch mm-page_alloc-squash-page_is_consistent.patch mm-page_alloc-remove-alloc_contig_dump_pages-stub.patch mm-page_alloc-split-out-fail_page_alloc.patch mm-page_alloc-split-out-debug_pagealloc.patch mm-page_alloc-move-mark_free_page-into-snapshotc.patch mm-page_alloc-move-pm_-function-into-power.patch mm-vmscan-use-gfp_has_io_fs.patch mm-page_alloc-move-sysctls-into-it-own-fils.patch mm-page_alloc-move-is_check_pages_enabled-into-page_allocc.patch