From: Andrey Konovalov <andreyknvl@google.com> To: Dmitry Vyukov <dvyukov@google.com>, Vincenzo Frascino <vincenzo.frascino@arm.com>, Catalin Marinas <catalin.marinas@arm.com>, kasan-dev@googlegroups.com Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>, Alexander Potapenko <glider@google.com>, Marco Elver <elver@google.com>, Evgenii Stepanov <eugenis@google.com>, Elena Petrova <lenaptr@google.com>, Branislav Rankov <Branislav.Rankov@arm.com>, Kevin Brodsky <kevin.brodsky@arm.com>, Will Deacon <will.deacon@arm.com>, Andrew Morton <akpm@linux-foundation.org>, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrey Konovalov <andreyknvl@google.com> Subject: [PATCH v2 35/37] kasan, slub: reset tags when accessing metadata Date: Tue, 15 Sep 2020 23:16:17 +0200 [thread overview] Message-ID: <f511f01a413c18c71ba9124ee3c341226919a5e8.1600204505.git.andreyknvl@google.com> (raw) In-Reply-To: <cover.1600204505.git.andreyknvl@google.com> SLUB allocator accesses metadata for slab objects, that may lie out-of-bounds of the object itself, or be accessed when an object is freed. Such accesses trigger tag faults and lead to false-positive reports with hardware tag-based KASAN. Software KASAN modes disable instrumentation for allocator code via KASAN_SANITIZE Makefile macro, and rely on kasan_enable/disable_current() annotations which are used to ignore KASAN reports. With hardware tag-based KASAN neither of those options are available, as it doesn't use compiler instrumetation, no tag faults are ignored, and MTE is disabled after the first one. Instead, reset tags when accessing metadata. Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> --- Change-Id: I39f3c4d4f29299d4fbbda039bedf230db1c746fb --- mm/page_poison.c | 2 +- mm/slub.c | 25 ++++++++++++++----------- 2 files changed, 15 insertions(+), 12 deletions(-) diff --git a/mm/page_poison.c b/mm/page_poison.c index 34b9181ee5d1..d90d342a391f 100644 --- a/mm/page_poison.c +++ b/mm/page_poison.c @@ -43,7 +43,7 @@ static void poison_page(struct page *page) /* KASAN still think the page is in-use, so skip it. */ kasan_disable_current(); - memset(addr, PAGE_POISON, PAGE_SIZE); + memset(kasan_reset_tag(addr), PAGE_POISON, PAGE_SIZE); kasan_enable_current(); kunmap_atomic(addr); } diff --git a/mm/slub.c b/mm/slub.c index 68c02b2eecd9..8e134ca3a6fb 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -249,7 +249,7 @@ static inline void *freelist_ptr(const struct kmem_cache *s, void *ptr, { #ifdef CONFIG_SLAB_FREELIST_HARDENED /* - * When CONFIG_KASAN_SW_TAGS is enabled, ptr_addr might be tagged. + * When CONFIG_KASAN_SW/HW_TAGS is enabled, ptr_addr might be tagged. * Normally, this doesn't cause any issues, as both set_freepointer() * and get_freepointer() are called with a pointer with the same tag. * However, there are some issues with CONFIG_SLUB_DEBUG code. For @@ -275,6 +275,7 @@ static inline void *freelist_dereference(const struct kmem_cache *s, static inline void *get_freepointer(struct kmem_cache *s, void *object) { + object = kasan_reset_tag(object); return freelist_dereference(s, object + s->offset); } @@ -304,6 +305,7 @@ static inline void set_freepointer(struct kmem_cache *s, void *object, void *fp) BUG_ON(object == fp); /* naive detection of double free or corruption */ #endif + freeptr_addr = (unsigned long)kasan_reset_tag((void *)freeptr_addr); *(void **)freeptr_addr = freelist_ptr(s, fp, freeptr_addr); } @@ -538,8 +540,8 @@ static void print_section(char *level, char *text, u8 *addr, unsigned int length) { metadata_access_enable(); - print_hex_dump(level, text, DUMP_PREFIX_ADDRESS, 16, 1, addr, - length, 1); + print_hex_dump(level, kasan_reset_tag(text), DUMP_PREFIX_ADDRESS, + 16, 1, addr, length, 1); metadata_access_disable(); } @@ -570,7 +572,7 @@ static struct track *get_track(struct kmem_cache *s, void *object, p = object + get_info_end(s); - return p + alloc; + return kasan_reset_tag(p + alloc); } static void set_track(struct kmem_cache *s, void *object, @@ -583,7 +585,8 @@ static void set_track(struct kmem_cache *s, void *object, unsigned int nr_entries; metadata_access_enable(); - nr_entries = stack_trace_save(p->addrs, TRACK_ADDRS_COUNT, 3); + nr_entries = stack_trace_save(kasan_reset_tag(p->addrs), + TRACK_ADDRS_COUNT, 3); metadata_access_disable(); if (nr_entries < TRACK_ADDRS_COUNT) @@ -747,7 +750,7 @@ static __printf(3, 4) void slab_err(struct kmem_cache *s, struct page *page, static void init_object(struct kmem_cache *s, void *object, u8 val) { - u8 *p = object; + u8 *p = kasan_reset_tag(object); if (s->flags & SLAB_RED_ZONE) memset(p - s->red_left_pad, val, s->red_left_pad); @@ -777,7 +780,7 @@ static int check_bytes_and_report(struct kmem_cache *s, struct page *page, u8 *addr = page_address(page); metadata_access_enable(); - fault = memchr_inv(start, value, bytes); + fault = memchr_inv(kasan_reset_tag(start), value, bytes); metadata_access_disable(); if (!fault) return 1; @@ -873,7 +876,7 @@ static int slab_pad_check(struct kmem_cache *s, struct page *page) pad = end - remainder; metadata_access_enable(); - fault = memchr_inv(pad, POISON_INUSE, remainder); + fault = memchr_inv(kasan_reset_tag(pad), POISON_INUSE, remainder); metadata_access_disable(); if (!fault) return 1; @@ -1118,7 +1121,7 @@ void setup_page_debug(struct kmem_cache *s, struct page *page, void *addr) return; metadata_access_enable(); - memset(addr, POISON_INUSE, page_size(page)); + memset(kasan_reset_tag(addr), POISON_INUSE, page_size(page)); metadata_access_disable(); } @@ -2884,10 +2887,10 @@ static __always_inline void *slab_alloc_node(struct kmem_cache *s, stat(s, ALLOC_FASTPATH); } - maybe_wipe_obj_freeptr(s, object); + maybe_wipe_obj_freeptr(s, kasan_reset_tag(object)); if (unlikely(slab_want_init_on_alloc(gfpflags, s)) && object) - memset(object, 0, s->object_size); + memset(kasan_reset_tag(object), 0, s->object_size); slab_post_alloc_hook(s, objcg, gfpflags, 1, &object); -- 2.28.0.618.gf4bc123cb7-goog
WARNING: multiple messages have this Message-ID (diff)
From: Andrey Konovalov <andreyknvl@google.com> To: Dmitry Vyukov <dvyukov@google.com>, Vincenzo Frascino <vincenzo.frascino@arm.com>, Catalin Marinas <catalin.marinas@arm.com>, kasan-dev@googlegroups.com Cc: Marco Elver <elver@google.com>, Elena Petrova <lenaptr@google.com>, Andrey Konovalov <andreyknvl@google.com>, Kevin Brodsky <kevin.brodsky@arm.com>, Will Deacon <will.deacon@arm.com>, Branislav Rankov <Branislav.Rankov@arm.com>, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Alexander Potapenko <glider@google.com>, linux-arm-kernel@lists.infradead.org, Andrey Ryabinin <aryabinin@virtuozzo.com>, Andrew Morton <akpm@linux-foundation.org>, Evgenii Stepanov <eugenis@google.com> Subject: [PATCH v2 35/37] kasan, slub: reset tags when accessing metadata Date: Tue, 15 Sep 2020 23:16:17 +0200 [thread overview] Message-ID: <f511f01a413c18c71ba9124ee3c341226919a5e8.1600204505.git.andreyknvl@google.com> (raw) In-Reply-To: <cover.1600204505.git.andreyknvl@google.com> SLUB allocator accesses metadata for slab objects, that may lie out-of-bounds of the object itself, or be accessed when an object is freed. Such accesses trigger tag faults and lead to false-positive reports with hardware tag-based KASAN. Software KASAN modes disable instrumentation for allocator code via KASAN_SANITIZE Makefile macro, and rely on kasan_enable/disable_current() annotations which are used to ignore KASAN reports. With hardware tag-based KASAN neither of those options are available, as it doesn't use compiler instrumetation, no tag faults are ignored, and MTE is disabled after the first one. Instead, reset tags when accessing metadata. Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> --- Change-Id: I39f3c4d4f29299d4fbbda039bedf230db1c746fb --- mm/page_poison.c | 2 +- mm/slub.c | 25 ++++++++++++++----------- 2 files changed, 15 insertions(+), 12 deletions(-) diff --git a/mm/page_poison.c b/mm/page_poison.c index 34b9181ee5d1..d90d342a391f 100644 --- a/mm/page_poison.c +++ b/mm/page_poison.c @@ -43,7 +43,7 @@ static void poison_page(struct page *page) /* KASAN still think the page is in-use, so skip it. */ kasan_disable_current(); - memset(addr, PAGE_POISON, PAGE_SIZE); + memset(kasan_reset_tag(addr), PAGE_POISON, PAGE_SIZE); kasan_enable_current(); kunmap_atomic(addr); } diff --git a/mm/slub.c b/mm/slub.c index 68c02b2eecd9..8e134ca3a6fb 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -249,7 +249,7 @@ static inline void *freelist_ptr(const struct kmem_cache *s, void *ptr, { #ifdef CONFIG_SLAB_FREELIST_HARDENED /* - * When CONFIG_KASAN_SW_TAGS is enabled, ptr_addr might be tagged. + * When CONFIG_KASAN_SW/HW_TAGS is enabled, ptr_addr might be tagged. * Normally, this doesn't cause any issues, as both set_freepointer() * and get_freepointer() are called with a pointer with the same tag. * However, there are some issues with CONFIG_SLUB_DEBUG code. For @@ -275,6 +275,7 @@ static inline void *freelist_dereference(const struct kmem_cache *s, static inline void *get_freepointer(struct kmem_cache *s, void *object) { + object = kasan_reset_tag(object); return freelist_dereference(s, object + s->offset); } @@ -304,6 +305,7 @@ static inline void set_freepointer(struct kmem_cache *s, void *object, void *fp) BUG_ON(object == fp); /* naive detection of double free or corruption */ #endif + freeptr_addr = (unsigned long)kasan_reset_tag((void *)freeptr_addr); *(void **)freeptr_addr = freelist_ptr(s, fp, freeptr_addr); } @@ -538,8 +540,8 @@ static void print_section(char *level, char *text, u8 *addr, unsigned int length) { metadata_access_enable(); - print_hex_dump(level, text, DUMP_PREFIX_ADDRESS, 16, 1, addr, - length, 1); + print_hex_dump(level, kasan_reset_tag(text), DUMP_PREFIX_ADDRESS, + 16, 1, addr, length, 1); metadata_access_disable(); } @@ -570,7 +572,7 @@ static struct track *get_track(struct kmem_cache *s, void *object, p = object + get_info_end(s); - return p + alloc; + return kasan_reset_tag(p + alloc); } static void set_track(struct kmem_cache *s, void *object, @@ -583,7 +585,8 @@ static void set_track(struct kmem_cache *s, void *object, unsigned int nr_entries; metadata_access_enable(); - nr_entries = stack_trace_save(p->addrs, TRACK_ADDRS_COUNT, 3); + nr_entries = stack_trace_save(kasan_reset_tag(p->addrs), + TRACK_ADDRS_COUNT, 3); metadata_access_disable(); if (nr_entries < TRACK_ADDRS_COUNT) @@ -747,7 +750,7 @@ static __printf(3, 4) void slab_err(struct kmem_cache *s, struct page *page, static void init_object(struct kmem_cache *s, void *object, u8 val) { - u8 *p = object; + u8 *p = kasan_reset_tag(object); if (s->flags & SLAB_RED_ZONE) memset(p - s->red_left_pad, val, s->red_left_pad); @@ -777,7 +780,7 @@ static int check_bytes_and_report(struct kmem_cache *s, struct page *page, u8 *addr = page_address(page); metadata_access_enable(); - fault = memchr_inv(start, value, bytes); + fault = memchr_inv(kasan_reset_tag(start), value, bytes); metadata_access_disable(); if (!fault) return 1; @@ -873,7 +876,7 @@ static int slab_pad_check(struct kmem_cache *s, struct page *page) pad = end - remainder; metadata_access_enable(); - fault = memchr_inv(pad, POISON_INUSE, remainder); + fault = memchr_inv(kasan_reset_tag(pad), POISON_INUSE, remainder); metadata_access_disable(); if (!fault) return 1; @@ -1118,7 +1121,7 @@ void setup_page_debug(struct kmem_cache *s, struct page *page, void *addr) return; metadata_access_enable(); - memset(addr, POISON_INUSE, page_size(page)); + memset(kasan_reset_tag(addr), POISON_INUSE, page_size(page)); metadata_access_disable(); } @@ -2884,10 +2887,10 @@ static __always_inline void *slab_alloc_node(struct kmem_cache *s, stat(s, ALLOC_FASTPATH); } - maybe_wipe_obj_freeptr(s, object); + maybe_wipe_obj_freeptr(s, kasan_reset_tag(object)); if (unlikely(slab_want_init_on_alloc(gfpflags, s)) && object) - memset(object, 0, s->object_size); + memset(kasan_reset_tag(object), 0, s->object_size); slab_post_alloc_hook(s, objcg, gfpflags, 1, &object); -- 2.28.0.618.gf4bc123cb7-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-09-15 21:53 UTC|newest] Thread overview: 237+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-09-15 21:15 [PATCH v2 00/37] kasan: add hardware tag-based mode for arm64 Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` [PATCH v2 01/37] kasan: KASAN_VMALLOC depends on KASAN_GENERIC Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` [PATCH v2 02/37] kasan: group vmalloc code Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` [PATCH v2 03/37] kasan: shadow declarations only for software modes Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` [PATCH v2 04/37] kasan: rename (un)poison_shadow to (un)poison_memory Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` [PATCH v2 05/37] kasan: rename KASAN_SHADOW_* to KASAN_GRANULE_* Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-18 8:04 ` Alexander Potapenko 2020-09-18 8:04 ` Alexander Potapenko 2020-09-18 8:04 ` Alexander Potapenko 2020-09-18 10:42 ` Andrey Konovalov 2020-09-18 10:42 ` Andrey Konovalov 2020-09-18 10:42 ` Andrey Konovalov 2020-09-15 21:15 ` [PATCH v2 06/37] kasan: only build init.c for software modes Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` [PATCH v2 07/37] kasan: split out shadow.c from common.c Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-18 8:17 ` Alexander Potapenko 2020-09-18 8:17 ` Alexander Potapenko 2020-09-18 8:17 ` Alexander Potapenko 2020-09-18 10:39 ` Andrey Konovalov 2020-09-18 10:39 ` Andrey Konovalov 2020-09-18 10:39 ` Andrey Konovalov 2020-09-15 21:15 ` [PATCH v2 08/37] kasan: rename generic/tags_report.c files Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` [PATCH v2 09/37] kasan: don't duplicate config dependencies Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` [PATCH v2 10/37] kasan: hide invalid free check implementation Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` [PATCH v2 11/37] kasan: decode stack frame only with KASAN_STACK_ENABLE Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` [PATCH v2 12/37] kasan, arm64: only init shadow for software modes Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-17 17:05 ` Catalin Marinas 2020-09-17 17:05 ` Catalin Marinas 2020-09-15 21:15 ` [PATCH v2 13/37] kasan, arm64: only use kasan_depth " Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-17 17:05 ` Catalin Marinas 2020-09-17 17:05 ` Catalin Marinas 2020-09-15 21:15 ` [PATCH v2 14/37] kasan: rename addr_has_shadow to addr_has_metadata Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` [PATCH v2 15/37] kasan: rename print_shadow_for_address to print_memory_metadata Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` [PATCH v2 16/37] kasan: kasan_non_canonical_hook only for software modes Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` [PATCH v2 17/37] kasan: rename SHADOW layout macros to META Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:15 ` Andrey Konovalov 2020-09-15 21:16 ` [PATCH v2 18/37] kasan: separate metadata_fetch_row for each mode Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` [PATCH v2 19/37] kasan: don't allow SW_TAGS with ARM64_MTE Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-17 17:05 ` Catalin Marinas 2020-09-17 17:05 ` Catalin Marinas 2020-09-15 21:16 ` [PATCH v2 20/37] kasan: rename tags.c to tags_sw.c Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-18 9:41 ` Alexander Potapenko 2020-09-18 9:41 ` Alexander Potapenko 2020-09-18 9:41 ` Alexander Potapenko 2020-09-18 9:44 ` Alexander Potapenko 2020-09-18 9:44 ` Alexander Potapenko 2020-09-18 9:44 ` Alexander Potapenko 2020-09-18 9:46 ` Alexander Potapenko 2020-09-18 9:46 ` Alexander Potapenko 2020-09-18 9:46 ` Alexander Potapenko 2020-09-18 10:42 ` Andrey Konovalov 2020-09-18 10:42 ` Andrey Konovalov 2020-09-18 10:42 ` Andrey Konovalov 2020-09-15 21:16 ` [PATCH v2 21/37] kasan: introduce CONFIG_KASAN_HW_TAGS Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-18 12:32 ` Marco Elver 2020-09-18 12:32 ` Marco Elver 2020-09-18 15:06 ` Andrey Konovalov 2020-09-18 15:06 ` Andrey Konovalov 2020-09-18 15:06 ` Andrey Konovalov 2020-09-18 15:36 ` Marco Elver 2020-09-18 15:36 ` Marco Elver 2020-09-18 15:36 ` Marco Elver 2020-09-18 15:45 ` Andrey Konovalov 2020-09-18 15:45 ` Andrey Konovalov 2020-09-18 15:45 ` Andrey Konovalov 2020-09-15 21:16 ` [PATCH v2 22/37] arm64: mte: Add in-kernel MTE helpers Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-17 13:46 ` Catalin Marinas 2020-09-17 13:46 ` Catalin Marinas 2020-09-17 14:21 ` Vincenzo Frascino 2020-09-17 14:21 ` Vincenzo Frascino 2020-09-18 9:36 ` Catalin Marinas 2020-09-18 9:36 ` Catalin Marinas 2020-09-22 10:16 ` Vincenzo Frascino 2020-09-22 10:16 ` Vincenzo Frascino 2020-09-17 16:17 ` Vincenzo Frascino 2020-09-17 16:17 ` Vincenzo Frascino 2020-09-17 17:07 ` Catalin Marinas 2020-09-17 17:07 ` Catalin Marinas 2020-09-15 21:16 ` [PATCH v2 23/37] arm64: kasan: Add arch layer for memory tagging helpers Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-17 17:05 ` Catalin Marinas 2020-09-17 17:05 ` Catalin Marinas 2020-09-18 13:00 ` Marco Elver 2020-09-18 13:00 ` Marco Elver 2020-09-18 14:56 ` Andrey Konovalov 2020-09-18 14:56 ` Andrey Konovalov 2020-09-18 14:56 ` Andrey Konovalov 2020-09-15 21:16 ` [PATCH v2 24/37] arm64: mte: Add in-kernel tag fault handler Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-17 14:03 ` Catalin Marinas 2020-09-17 14:03 ` Catalin Marinas 2020-09-17 14:24 ` Vincenzo Frascino 2020-09-17 14:24 ` Vincenzo Frascino 2020-09-17 14:59 ` Catalin Marinas 2020-09-17 14:59 ` Catalin Marinas 2020-09-15 21:16 ` [PATCH v2 25/37] arm64: kasan: Enable in-kernel MTE Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-17 16:35 ` Catalin Marinas 2020-09-17 16:35 ` Catalin Marinas 2020-09-15 21:16 ` [PATCH v2 26/37] arm64: mte: Convert gcr_user into an exclude mask Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-17 17:06 ` Catalin Marinas 2020-09-17 17:06 ` Catalin Marinas 2020-09-15 21:16 ` [PATCH v2 27/37] arm64: mte: Switch GCR_EL1 in kernel entry and exit Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-17 16:52 ` Catalin Marinas 2020-09-17 16:52 ` Catalin Marinas 2020-09-17 16:58 ` Catalin Marinas 2020-09-17 16:58 ` Catalin Marinas 2020-09-17 18:47 ` Vincenzo Frascino 2020-09-17 18:47 ` Vincenzo Frascino 2020-09-18 9:39 ` Catalin Marinas 2020-09-18 9:39 ` Catalin Marinas 2020-09-15 21:16 ` [PATCH v2 28/37] arm64: kasan: Enable TBI EL1 Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-17 16:54 ` Catalin Marinas 2020-09-17 16:54 ` Catalin Marinas 2020-09-15 21:16 ` [PATCH v2 29/37] arm64: kasan: Align allocations for HW_TAGS Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-17 17:06 ` Catalin Marinas 2020-09-17 17:06 ` Catalin Marinas 2020-09-15 21:16 ` [PATCH v2 30/37] kasan: define KASAN_GRANULE_SIZE " Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` [PATCH v2 31/37] kasan, x86, s390: update undef CONFIG_KASAN Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-18 10:52 ` Marco Elver 2020-09-18 10:52 ` Marco Elver 2020-09-18 15:07 ` Andrey Konovalov 2020-09-18 15:07 ` Andrey Konovalov 2020-09-18 15:07 ` Andrey Konovalov 2020-09-24 21:35 ` Andrey Konovalov 2020-09-24 21:35 ` Andrey Konovalov 2020-09-24 21:35 ` Andrey Konovalov 2020-09-15 21:16 ` [PATCH v2 32/37] kasan, arm64: expand CONFIG_KASAN checks Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-17 17:06 ` Catalin Marinas 2020-09-17 17:06 ` Catalin Marinas 2020-09-15 21:16 ` [PATCH v2 33/37] kasan, arm64: implement HW_TAGS runtime Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-17 17:06 ` Catalin Marinas 2020-09-17 17:06 ` Catalin Marinas 2020-09-18 10:46 ` Marco Elver 2020-09-18 10:46 ` Marco Elver 2020-09-18 12:28 ` Andrey Konovalov 2020-09-18 12:28 ` Andrey Konovalov 2020-09-18 12:28 ` Andrey Konovalov 2020-09-18 12:52 ` Marco Elver 2020-09-18 12:52 ` Marco Elver 2020-09-18 15:00 ` Andrey Konovalov 2020-09-18 15:00 ` Andrey Konovalov 2020-09-18 15:00 ` Andrey Konovalov 2020-09-18 15:19 ` Marco Elver 2020-09-18 15:19 ` Marco Elver 2020-09-18 15:52 ` Andrey Konovalov 2020-09-18 15:52 ` Andrey Konovalov 2020-09-18 15:52 ` Andrey Konovalov 2020-09-15 21:16 ` [PATCH v2 34/37] kasan, arm64: print report from tag fault handler Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-17 17:04 ` Catalin Marinas 2020-09-17 17:04 ` Catalin Marinas 2020-09-18 12:26 ` Andrey Konovalov 2020-09-18 12:26 ` Andrey Konovalov 2020-09-18 12:26 ` Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov [this message] 2020-09-15 21:16 ` [PATCH v2 35/37] kasan, slub: reset tags when accessing metadata Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-18 14:44 ` Marco Elver 2020-09-18 14:44 ` Marco Elver 2020-09-18 14:55 ` Andrey Konovalov 2020-09-18 14:55 ` Andrey Konovalov 2020-09-18 14:55 ` Andrey Konovalov 2020-09-18 15:29 ` Catalin Marinas 2020-09-18 15:29 ` Catalin Marinas 2020-09-15 21:16 ` [PATCH v2 36/37] kasan, arm64: enable CONFIG_KASAN_HW_TAGS Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-17 17:04 ` Catalin Marinas 2020-09-17 17:04 ` Catalin Marinas 2020-09-15 21:16 ` [PATCH v2 37/37] kasan: add documentation for hardware tag-based mode Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov 2020-09-15 21:16 ` Andrey Konovalov
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