The patch titled
Subject: kasan: move kasan_get_alloc/free_track definitions
has been added to the -mm mm-unstable branch. Its filename is
kasan-move-kasan_get_alloc-free_track-definitions.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/kasan-move-kasan_get_alloc-free_track-definitions.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Subject: kasan: move kasan_get_alloc/free_track definitions
Date: Mon, 5 Sep 2022 23:05:35 +0200
Move the definitions of kasan_get_alloc/free_track() to report_*.c, as
they belong with other the reporting code.
Link: https://lkml.kernel.org/r/0cb15423956889b3905a0174b58782633bbbd72e.1662411799.git.andreyknvl@xxxxxxxxxx
Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Reviewed-by: Marco Elver <elver@xxxxxxxxxx>
Cc: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Andrey Ryabinin <ryabinin.a.a@xxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: Evgenii Stepanov <eugenis@xxxxxxxxxx>
Cc: Peter Collingbourne <pcc@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/kasan/generic.c | 21 ---------------------
mm/kasan/report_generic.c | 21 +++++++++++++++++++++
mm/kasan/report_tags.c | 12 ++++++++++++
mm/kasan/tags.c | 12 ------------
4 files changed, 33 insertions(+), 33 deletions(-)
--- a/mm/kasan/generic.c~kasan-move-kasan_get_alloc-free_track-definitions
+++ a/mm/kasan/generic.c
@@ -512,24 +512,3 @@ void kasan_save_free_info(struct kmem_ca
/* The object was freed and has free track set. */
*(u8 *)kasan_mem_to_shadow(object) = KASAN_SLAB_FREETRACK;
}
-
-struct kasan_track *kasan_get_alloc_track(struct kmem_cache *cache,
- void *object)
-{
- struct kasan_alloc_meta *alloc_meta;
-
- alloc_meta = kasan_get_alloc_meta(cache, object);
- if (!alloc_meta)
- return NULL;
-
- return &alloc_meta->alloc_track;
-}
-
-struct kasan_track *kasan_get_free_track(struct kmem_cache *cache,
- void *object, u8 tag)
-{
- if (*(u8 *)kasan_mem_to_shadow(object) != KASAN_SLAB_FREETRACK)
- return NULL;
- /* Free meta must be present with KASAN_SLAB_FREETRACK. */
- return &kasan_get_free_meta(cache, object)->free_track;
-}
--- a/mm/kasan/report_generic.c~kasan-move-kasan_get_alloc-free_track-definitions
+++ a/mm/kasan/report_generic.c
@@ -127,6 +127,27 @@ const char *kasan_get_bug_type(struct ka
return get_wild_bug_type(info);
}
+struct kasan_track *kasan_get_alloc_track(struct kmem_cache *cache,
+ void *object)
+{
+ struct kasan_alloc_meta *alloc_meta;
+
+ alloc_meta = kasan_get_alloc_meta(cache, object);
+ if (!alloc_meta)
+ return NULL;
+
+ return &alloc_meta->alloc_track;
+}
+
+struct kasan_track *kasan_get_free_track(struct kmem_cache *cache,
+ void *object, u8 tag)
+{
+ if (*(u8 *)kasan_mem_to_shadow(object) != KASAN_SLAB_FREETRACK)
+ return NULL;
+ /* Free meta must be present with KASAN_SLAB_FREETRACK. */
+ return &kasan_get_free_meta(cache, object)->free_track;
+}
+
void kasan_metadata_fetch_row(char *buffer, void *row)
{
memcpy(buffer, kasan_mem_to_shadow(row), META_BYTES_PER_ROW);
--- a/mm/kasan/report_tags.c~kasan-move-kasan_get_alloc-free_track-definitions
+++ a/mm/kasan/report_tags.c
@@ -21,3 +21,15 @@ const char *kasan_get_bug_type(struct ka
return "invalid-access";
}
+
+struct kasan_track *kasan_get_alloc_track(struct kmem_cache *cache,
+ void *object)
+{
+ return NULL;
+}
+
+struct kasan_track *kasan_get_free_track(struct kmem_cache *cache,
+ void *object, u8 tag)
+{
+ return NULL;
+}
--- a/mm/kasan/tags.c~kasan-move-kasan_get_alloc-free_track-definitions
+++ a/mm/kasan/tags.c
@@ -24,15 +24,3 @@ void kasan_save_alloc_info(struct kmem_c
void kasan_save_free_info(struct kmem_cache *cache, void *object)
{
}
-
-struct kasan_track *kasan_get_alloc_track(struct kmem_cache *cache,
- void *object)
-{
- return NULL;
-}
-
-struct kasan_track *kasan_get_free_track(struct kmem_cache *cache,
- void *object, u8 tag)
-{
- return NULL;
-}
_
Patches currently in -mm which might be from andreyknvl@xxxxxxxxxx are
kasan-check-kasan_no_free_meta-in-__kasan_metadata_size.patch
kasan-rename-kasan_set__info-to-kasan_save__info.patch
kasan-move-is_kmalloc-check-out-of-save_alloc_info.patch
kasan-split-save_alloc_info-implementations.patch
kasan-drop-config_kasan_tags_identify.patch
kasan-introduce-kasan_print_aux_stacks.patch
kasan-introduce-kasan_get_alloc_track.patch
kasan-introduce-kasan_init_object_meta.patch
kasan-clear-metadata-functions-for-tag-based-modes.patch
kasan-move-kasan_get__meta-to-genericc.patch
kasan-introduce-kasan_requires_meta.patch
kasan-introduce-kasan_init_cache_meta.patch
kasan-drop-config_kasan_generic-check-from-kasan_init_cache_meta.patch
kasan-only-define-kasan_metadata_size-for-generic-mode.patch
kasan-only-define-kasan_never_merge-for-generic-mode.patch
kasan-only-define-metadata-offsets-for-generic-mode.patch
kasan-only-define-metadata-structs-for-generic-mode.patch
kasan-only-define-kasan_cache_create-for-generic-mode.patch
kasan-pass-tagged-pointers-to-kasan_save_alloc-free_info.patch
kasan-move-kasan_get_alloc-free_track-definitions.patch
kasan-cosmetic-changes-in-reportc.patch
kasan-use-virt_addr_valid-in-kasan_addr_to_page-slab.patch
kasan-use-kasan_addr_to_slab-in-print_address_description.patch
kasan-make-kasan_addr_to_page-static.patch
kasan-simplify-print_report.patch
kasan-introduce-complete_report_info.patch
kasan-fill-in-cache-and-object-in-complete_report_info.patch
kasan-rework-function-arguments-in-reportc.patch
kasan-introduce-kasan_complete_mode_report_info.patch
kasan-implement-stack-ring-for-tag-based-modes.patch
kasan-support-kasanstacktrace-for-sw_tags.patch
kasan-dynamically-allocate-stack-ring-entries.patch
kasan-better-identify-bug-types-for-tag-based-modes.patch
kasan-add-another-use-after-free-test.patch
kasan-move-tests-to-mm-kasan.patch
