From: Andrey Konovalov <andreyknvl@google.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-arm-kernel@lists.infradead.org,
Marco Elver <elver@google.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Kevin Brodsky <kevin.brodsky@arm.com>,
Will Deacon <will.deacon@arm.com>,
Branislav Rankov <Branislav.Rankov@arm.com>,
kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, Alexander Potapenko <glider@google.com>,
Evgenii Stepanov <eugenis@google.com>,
Andrey Konovalov <andreyknvl@google.com>,
Andrey Ryabinin <aryabinin@virtuozzo.com>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Dmitry Vyukov <dvyukov@google.com>
Subject: [PATCH mm v3 16/19] kasan: clarify comment in __kasan_kfree_large
Date: Fri, 13 Nov 2020 23:20:06 +0100 [thread overview]
Message-ID: <ef974bf9a5cbab8fbf5d8fdf7c4468b04659d980.1605305978.git.andreyknvl@google.com> (raw)
In-Reply-To: <cover.1605305978.git.andreyknvl@google.com>
Currently it says that the memory gets poisoned by page_alloc code.
Clarify this by mentioning the specific callback that poisons the
memory.
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Link: https://linux-review.googlesource.com/id/I1334dffb69b87d7986fab88a1a039cc3ea764725
---
mm/kasan/common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/kasan/common.c b/mm/kasan/common.c
index 821678a58ac6..42ba64fce8a3 100644
--- a/mm/kasan/common.c
+++ b/mm/kasan/common.c
@@ -453,5 +453,5 @@ void __kasan_kfree_large(void *ptr, unsigned long ip)
{
if (ptr != page_address(virt_to_head_page(ptr)))
kasan_report_invalid_free(ptr, ip);
- /* The object will be poisoned by page_alloc. */
+ /* The object will be poisoned by kasan_free_pages(). */
}
--
2.29.2.299.gdc1121823c-goog
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next prev parent reply other threads:[~2020-11-13 22:44 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-13 22:19 [PATCH mm v3 00/19] kasan: boot parameters for hardware tag-based mode Andrey Konovalov
2020-11-13 22:19 ` [PATCH mm v3 01/19] kasan: simplify quarantine_put call site Andrey Konovalov
2020-11-13 22:19 ` [PATCH mm v3 02/19] kasan: rename get_alloc/free_info Andrey Konovalov
2020-11-13 22:19 ` [PATCH mm v3 03/19] kasan: introduce set_alloc_info Andrey Konovalov
2020-11-13 22:19 ` [PATCH mm v3 04/19] kasan, arm64: unpoison stack only with CONFIG_KASAN_STACK Andrey Konovalov
2020-11-16 11:00 ` Dmitry Vyukov
2020-11-13 22:19 ` [PATCH mm v3 05/19] kasan: allow VMAP_STACK for HW_TAGS mode Andrey Konovalov
2020-11-16 11:01 ` Dmitry Vyukov
2020-11-13 22:19 ` [PATCH mm v3 06/19] kasan: remove __kasan_unpoison_stack Andrey Konovalov
2020-11-13 22:19 ` [PATCH mm v3 07/19] kasan: inline kasan_reset_tag for tag-based modes Andrey Konovalov
2020-11-17 10:56 ` Dmitry Vyukov
2020-11-13 22:19 ` [PATCH mm v3 08/19] kasan: inline random_tag for HW_TAGS Andrey Konovalov
2020-11-17 10:58 ` Dmitry Vyukov
2020-11-13 22:19 ` [PATCH mm v3 09/19] kasan: open-code kasan_unpoison_slab Andrey Konovalov
2020-11-16 15:06 ` Marco Elver
2020-11-13 22:20 ` [PATCH mm v3 10/19] kasan: inline (un)poison_range and check_invalid_free Andrey Konovalov
2020-11-16 15:11 ` Marco Elver
2020-11-13 22:20 ` [PATCH mm v3 11/19] kasan: add and integrate kasan boot parameters Andrey Konovalov
2020-11-16 15:15 ` Marco Elver
2020-11-17 11:09 ` Dmitry Vyukov
2020-11-13 22:20 ` [PATCH mm v3 12/19] kasan, mm: check kasan_enabled in annotations Andrey Konovalov
2020-11-16 15:26 ` Marco Elver
2020-11-17 11:12 ` Dmitry Vyukov
2020-11-13 22:20 ` [PATCH mm v3 13/19] kasan, mm: rename kasan_poison_kfree Andrey Konovalov
2020-11-16 15:43 ` Marco Elver
2020-11-13 22:20 ` [PATCH mm v3 14/19] kasan: don't round_up too much Andrey Konovalov
2020-11-13 22:20 ` [PATCH mm v3 15/19] kasan: simplify assign_tag and set_tag calls Andrey Konovalov
2020-11-13 22:20 ` Andrey Konovalov [this message]
2020-11-13 22:20 ` [PATCH mm v3 17/19] kasan: clean up metadata allocation and usage Andrey Konovalov
2020-11-16 15:46 ` Marco Elver
2020-11-17 13:12 ` Dmitry Vyukov
2020-11-17 13:18 ` Marco Elver
2020-11-17 13:27 ` Dmitry Vyukov
2020-11-23 18:54 ` Andrey Konovalov
2020-11-23 19:16 ` Andrey Konovalov
2020-11-13 22:20 ` [PATCH mm v3 18/19] kasan, mm: allow cache merging with no metadata Andrey Konovalov
2020-11-16 15:45 ` Marco Elver
2020-11-17 13:25 ` Dmitry Vyukov
2020-11-23 13:52 ` Andrey Konovalov
2020-11-13 22:20 ` [PATCH mm v3 19/19] kasan: update documentation Andrey Konovalov
2020-11-16 15:47 ` Marco Elver
2020-11-17 13:28 ` Dmitry Vyukov
2020-11-16 14:48 ` [PATCH mm v3 00/19] kasan: boot parameters for hardware tag-based mode Vincenzo Frascino
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