From: Andrew Morton <akpm@linux-foundation.org>
To: mm-commits@vger.kernel.org, will@kernel.org,
vincenzo.frascino@arm.com, ryabinin.a.a@gmail.com,
pcc@google.com, mark.rutland@arm.com, glider@google.com,
eugenis@google.com, elver@google.com, dvyukov@google.com,
catalin.marinas@arm.com, andreyknvl@google.com,
akpm@linux-foundation.org
Subject: [merged] kasan-define-kasan_vmalloc_invalid-for-sw_tags.patch removed from -mm tree
Date: Fri, 25 Mar 2022 15:42:10 -0700 [thread overview]
Message-ID: <20220325224211.0844FC004DD@smtp.kernel.org> (raw)
The patch titled
Subject: kasan: define KASAN_VMALLOC_INVALID for SW_TAGS
has been removed from the -mm tree. Its filename was
kasan-define-kasan_vmalloc_invalid-for-sw_tags.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Andrey Konovalov <andreyknvl@google.com>
Subject: kasan: define KASAN_VMALLOC_INVALID for SW_TAGS
In preparation for adding vmalloc support to SW_TAGS KASAN, provide a
KASAN_VMALLOC_INVALID definition for it.
HW_TAGS KASAN won't be using this value, as it falls back onto page_alloc
for poisoning freed vmalloc() memory.
Link: https://lkml.kernel.org/r/1daaaafeb148a7ae8285265edc97d7ca07b6a07d.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/kasan/kasan.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/mm/kasan/kasan.h~kasan-define-kasan_vmalloc_invalid-for-sw_tags
+++ a/mm/kasan/kasan.h
@@ -71,18 +71,19 @@ static inline bool kasan_sync_fault_poss
#define KASAN_PAGE_REDZONE 0xFE /* redzone for kmalloc_large allocations */
#define KASAN_KMALLOC_REDZONE 0xFC /* redzone inside slub object */
#define KASAN_KMALLOC_FREE 0xFB /* object was freed (kmem_cache_free/kfree) */
+#define KASAN_VMALLOC_INVALID 0xF8 /* unallocated space in vmapped page */
#else
#define KASAN_FREE_PAGE KASAN_TAG_INVALID
#define KASAN_PAGE_REDZONE KASAN_TAG_INVALID
#define KASAN_KMALLOC_REDZONE KASAN_TAG_INVALID
#define KASAN_KMALLOC_FREE KASAN_TAG_INVALID
+#define KASAN_VMALLOC_INVALID KASAN_TAG_INVALID /* only for SW_TAGS */
#endif
#ifdef CONFIG_KASAN_GENERIC
#define KASAN_KMALLOC_FREETRACK 0xFA /* object was freed and has free track set */
#define KASAN_GLOBAL_REDZONE 0xF9 /* redzone for global variable */
-#define KASAN_VMALLOC_INVALID 0xF8 /* unallocated space in vmapped page */
/*
* Stack redzone shadow values
_
Patches currently in -mm which might be from andreyknvl@google.com are
stacktrace-add-interface-based-on-shadow-call-stack.patch
arm64-scs-save-scs_sp-values-per-cpu-when-switching-stacks.patch
arm64-implement-stack_trace_save_shadow.patch
kasan-use-stack_trace_save_shadow.patch
reply other threads:[~2022-03-25 22:42 UTC|newest]
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