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 CFB5AC43217 for ; Wed, 2 Mar 2022 21:36:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245355AbiCBVhU (ORCPT ); Wed, 2 Mar 2022 16:37:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45348 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245362AbiCBVhS (ORCPT ); Wed, 2 Mar 2022 16:37:18 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9A16CC7E5F for ; Wed, 2 Mar 2022 13:36:28 -0800 (PST) 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 38E4D619B9 for ; Wed, 2 Mar 2022 21:36:28 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8F7FAC004E1; Wed, 2 Mar 2022 21:36:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1646256987; bh=gnJEun+xLL/cCKV3BcCJIjif2hSQLcXaqmlnnnBjpxg=; h=Date:To:From:Subject:From; b=AXa3zSB7GMspQQZPPWMZizrNcB+MUXOFrIcKkZ8DMrv8gh89QvTQ7TT3HhAxKvkvP j0NpfZrZcfA+eTjVMq0qIWftC1vzYIRWVcr0vua9NkEs2a9TJmFrF8Kkwl+uVTMqke /g88b6aZoGqzyJjKpMj9fzYG5XugDDWPsP3/lpbo= Date: Wed, 02 Mar 2022 13:36:26 -0800 To: mm-commits@vger.kernel.org, ryabinin.a.a@gmail.com, glider@google.com, elver@google.com, dvyukov@google.com, andreyknvl@google.com, akpm@linux-foundation.org From: Andrew Morton Subject: + kasan-move-and-simplify-kasan_report_async.patch added to -mm tree Message-Id: <20220302213627.8F7FAC004E1@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: kasan: move and simplify kasan_report_async has been added to the -mm tree. Its filename is kasan-move-and-simplify-kasan_report_async.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/kasan-move-and-simplify-kasan_report_async.patch and later at https://ozlabs.org/~akpm/mmotm/broken-out/kasan-move-and-simplify-kasan_report_async.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Andrey Konovalov Subject: kasan: move and simplify kasan_report_async Place kasan_report_async() next to the other main reporting routines. Also simplify printed information. Link: https://lkml.kernel.org/r/52d942ef3ffd29bdfa225bbe8e327bc5bda7ab09.1646237226.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov Cc: Alexander Potapenko Cc: Andrey Ryabinin Cc: Dmitry Vyukov Cc: Marco Elver Signed-off-by: Andrew Morton --- mm/kasan/report.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) --- a/mm/kasan/report.c~kasan-move-and-simplify-kasan_report_async +++ a/mm/kasan/report.c @@ -392,20 +392,6 @@ static bool report_enabled(void) return !test_and_set_bit(KASAN_BIT_REPORTED, &kasan_flags); } -#ifdef CONFIG_KASAN_HW_TAGS -void kasan_report_async(void) -{ - unsigned long flags; - - start_report(&flags, false); - pr_err("BUG: KASAN: invalid-access\n"); - pr_err("Asynchronous mode enabled: no access details available\n"); - pr_err("\n"); - dump_stack_lvl(KERN_ERR); - end_report(&flags, NULL); -} -#endif /* CONFIG_KASAN_HW_TAGS */ - static void print_report(struct kasan_access_info *info) { void *tagged_addr = info->access_addr; @@ -477,6 +463,20 @@ out: return ret; } +#ifdef CONFIG_KASAN_HW_TAGS +void kasan_report_async(void) +{ + unsigned long flags; + + start_report(&flags, false); + pr_err("BUG: KASAN: invalid-access\n"); + pr_err("Asynchronous fault: no details available\n"); + pr_err("\n"); + dump_stack_lvl(KERN_ERR); + end_report(&flags, NULL); +} +#endif /* CONFIG_KASAN_HW_TAGS */ + #ifdef CONFIG_KASAN_INLINE /* * With CONFIG_KASAN_INLINE, accesses to bogus pointers (outside the high _ Patches currently in -mm which might be from andreyknvl@google.com are kasan-page_alloc-deduplicate-should_skip_kasan_poison.patch kasan-page_alloc-move-tag_clear_highpage-out-of-kernel_init_free_pages.patch kasan-page_alloc-merge-kasan_free_pages-into-free_pages_prepare.patch kasan-page_alloc-simplify-kasan_poison_pages-call-site.patch kasan-page_alloc-init-memory-of-skipped-pages-on-free.patch kasan-drop-skip_kasan_poison-variable-in-free_pages_prepare.patch mm-clarify-__gfp_zerotags-comment.patch kasan-only-apply-__gfp_zerotags-when-memory-is-zeroed.patch kasan-page_alloc-refactor-init-checks-in-post_alloc_hook.patch kasan-page_alloc-merge-kasan_alloc_pages-into-post_alloc_hook.patch kasan-page_alloc-combine-tag_clear_highpage-calls-in-post_alloc_hook.patch kasan-page_alloc-move-setpageskipkasanpoison-in-post_alloc_hook.patch kasan-page_alloc-move-kernel_init_free_pages-in-post_alloc_hook.patch kasan-page_alloc-rework-kasan_unpoison_pages-call-site.patch kasan-clean-up-metadata-byte-definitions.patch kasan-define-kasan_vmalloc_invalid-for-sw_tags.patch kasan-x86-arm64-s390-rename-functions-for-modules-shadow.patch kasan-vmalloc-drop-outdated-vm_kasan-comment.patch kasan-reorder-vmalloc-hooks.patch kasan-add-wrappers-for-vmalloc-hooks.patch kasan-vmalloc-reset-tags-in-vmalloc-functions.patch kasan-fork-reset-pointer-tags-of-vmapped-stacks.patch kasan-arm64-reset-pointer-tags-of-vmapped-stacks.patch kasan-fork-reset-pointer-tags-of-vmapped-stacks-fix.patch kasan-vmalloc-add-vmalloc-tagging-for-sw_tags.patch kasan-vmalloc-arm64-mark-vmalloc-mappings-as-pgprot_tagged.patch kasan-vmalloc-unpoison-vm_alloc-pages-after-mapping.patch kasan-mm-only-define-___gfp_skip_kasan_poison-with-hw_tags.patch kasan-page_alloc-allow-skipping-unpoisoning-for-hw_tags.patch kasan-page_alloc-allow-skipping-memory-init-for-hw_tags.patch kasan-vmalloc-add-vmalloc-tagging-for-hw_tags.patch kasan-vmalloc-only-tag-normal-vmalloc-allocations.patch kasan-arm64-dont-tag-executable-vmalloc-allocations.patch kasan-mark-kasan_arg_stacktrace-as-__initdata.patch kasan-clean-up-feature-flags-for-hw_tags-mode.patch kasan-add-kasanvmalloc-command-line-flag.patch kasan-allow-enabling-kasan_vmalloc-and-sw-hw_tags.patch arm64-select-kasan_vmalloc-for-sw-hw_tags-modes.patch kasan-documentation-updates.patch kasan-improve-vmalloc-tests.patch kasan-improve-vmalloc-tests-fix-2.patch kasan-improve-vmalloc-tests-fix-3.patch kasan-test-support-async-again-and-asymm-modes-for-hw_tags.patch kasan-print-virtual-mapping-info-in-reports.patch kasan-drop-addr-check-from-describe_object_addr.patch kasan-more-line-breaks-in-reports.patch kasan-rearrange-stack-frame-info-in-reports.patch kasan-improve-stack-frame-info-in-reports.patch kasan-print-basic-stack-frame-info-for-sw_tags.patch kasan-simplify-async-check-in-end_report.patch kasan-simplify-kasan_update_kunit_status-and-call-sites.patch kasan-check-config_kasan_kunit_test-instead-of-config_kunit.patch kasan-move-update_kunit_status-to-start_report.patch kasan-move-disable_trace_on_warning-to-start_report.patch kasan-split-out-print_report-from-__kasan_report.patch kasan-simplify-kasan_find_first_bad_addr-call-sites.patch kasan-restructure-kasan_report.patch kasan-merge-__kasan_report-into-kasan_report.patch kasan-call-print_report-from-kasan_report_invalid_free.patch kasan-move-and-simplify-kasan_report_async.patch kasan-rename-kasan_access_info-to-kasan_report_info.patch kasan-add-comment-about-uaccess-regions-to-kasan_report.patch kasan-respect-kasan_bit_reported-in-all-reporting-routines.patch kasan-reorder-reporting-functions.patch kasan-move-and-hide-kasan_save_enable-restore_multi_shot.patch kasan-disable-lockdep-when-printing-reports.patch