From: andrey.konovalov@linux.dev To: Andrew Morton <akpm@linux-foundation.org> Cc: Andrey Konovalov <andreyknvl@gmail.com>, Marco Elver <elver@google.com>, Alexander Potapenko <glider@google.com>, Dmitry Vyukov <dvyukov@google.com>, Andrey Ryabinin <ryabinin.a.a@gmail.com>, kasan-dev@googlegroups.com, linux-mm@kvack.org, Vincenzo Frascino <vincenzo.frascino@arm.com>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Mark Rutland <mark.rutland@arm.com>, linux-arm-kernel@lists.infradead.org, Peter Collingbourne <pcc@google.com>, Evgenii Stepanov <eugenis@google.com>, linux-kernel@vger.kernel.org, Andrey Konovalov <andreyknvl@google.com> Subject: [PATCH v6 31/39] kasan, vmalloc: only tag normal vmalloc allocations Date: Mon, 24 Jan 2022 19:05:05 +0100 [thread overview] Message-ID: <fbfd9939a4dc375923c9a5c6b9e7ab05c26b8c6b.1643047180.git.andreyknvl@google.com> (raw) In-Reply-To: <cover.1643047180.git.andreyknvl@google.com> From: Andrey Konovalov <andreyknvl@google.com> The kernel can use to allocate executable memory. The only supported way to do that is via __vmalloc_node_range() with the executable bit set in the prot argument. (vmap() resets the bit via pgprot_nx()). Once tag-based KASAN modes start tagging vmalloc allocations, executing code from such allocations will lead to the PC register getting a tag, which is not tolerated by the kernel. Only tag the allocations for normal kernel pages. Signed-off-by: Andrey Konovalov <andreyknvl@google.com> --- Changes v3->v4: - Rename KASAN_VMALLOC_NOEXEC to KASAN_VMALLOC_PROT_NORMAL. - Compare with PAGE_KERNEL instead of using pgprot_nx(). - Update patch description. Changes v2->v3: - Add this patch. --- include/linux/kasan.h | 7 ++++--- mm/kasan/hw_tags.c | 7 +++++++ mm/kasan/shadow.c | 7 +++++++ mm/vmalloc.c | 49 +++++++++++++++++++++++++------------------ 4 files changed, 47 insertions(+), 23 deletions(-) diff --git a/include/linux/kasan.h b/include/linux/kasan.h index 499f1573dba4..3593c95d1fa5 100644 --- a/include/linux/kasan.h +++ b/include/linux/kasan.h @@ -27,9 +27,10 @@ struct kunit_kasan_expectation { typedef unsigned int __bitwise kasan_vmalloc_flags_t; -#define KASAN_VMALLOC_NONE 0x00u -#define KASAN_VMALLOC_INIT 0x01u -#define KASAN_VMALLOC_VM_ALLOC 0x02u +#define KASAN_VMALLOC_NONE 0x00u +#define KASAN_VMALLOC_INIT 0x01u +#define KASAN_VMALLOC_VM_ALLOC 0x02u +#define KASAN_VMALLOC_PROT_NORMAL 0x04u #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c index 21104fd51872..2e9378a4f07f 100644 --- a/mm/kasan/hw_tags.c +++ b/mm/kasan/hw_tags.c @@ -247,6 +247,13 @@ void *__kasan_unpoison_vmalloc(const void *start, unsigned long size, if (!(flags & KASAN_VMALLOC_VM_ALLOC)) return (void *)start; + /* + * Don't tag executable memory. + * The kernel doesn't tolerate having the PC register tagged. + */ + if (!(flags & KASAN_VMALLOC_PROT_NORMAL)) + return (void *)start; + tag = kasan_random_tag(); start = set_tag(start, tag); diff --git a/mm/kasan/shadow.c b/mm/kasan/shadow.c index b958babc8fed..7272e248db87 100644 --- a/mm/kasan/shadow.c +++ b/mm/kasan/shadow.c @@ -488,6 +488,13 @@ void *__kasan_unpoison_vmalloc(const void *start, unsigned long size, if (!is_vmalloc_or_module_addr(start)) return (void *)start; + /* + * Don't tag executable memory. + * The kernel doesn't tolerate having the PC register tagged. + */ + if (!(flags & KASAN_VMALLOC_PROT_NORMAL)) + return (void *)start; + start = set_tag(start, kasan_random_tag()); kasan_unpoison(start, size, false); return (void *)start; diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 6dcdf815576b..375b53fd939f 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -2221,7 +2221,7 @@ void *vm_map_ram(struct page **pages, unsigned int count, int node) * With hardware tag-based KASAN, marking is skipped for * non-VM_ALLOC mappings, see __kasan_unpoison_vmalloc(). */ - mem = kasan_unpoison_vmalloc(mem, size, KASAN_VMALLOC_NONE); + mem = kasan_unpoison_vmalloc(mem, size, KASAN_VMALLOC_PROT_NORMAL); return mem; } @@ -2460,7 +2460,7 @@ static struct vm_struct *__get_vm_area_node(unsigned long size, */ if (!(flags & VM_ALLOC)) area->addr = kasan_unpoison_vmalloc(area->addr, requested_size, - KASAN_VMALLOC_NONE); + KASAN_VMALLOC_PROT_NORMAL); return area; } @@ -3071,7 +3071,7 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align, { struct vm_struct *area; void *ret; - kasan_vmalloc_flags_t kasan_flags; + kasan_vmalloc_flags_t kasan_flags = KASAN_VMALLOC_NONE; unsigned long real_size = size; unsigned long real_align = align; unsigned int shift = PAGE_SHIFT; @@ -3124,21 +3124,28 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align, goto fail; } - /* Prepare arguments for __vmalloc_area_node(). */ - if (kasan_hw_tags_enabled() && - pgprot_val(prot) == pgprot_val(PAGE_KERNEL)) { - /* - * Modify protection bits to allow tagging. - * This must be done before mapping in __vmalloc_area_node(). - */ - prot = arch_vmap_pgprot_tagged(prot); + /* + * Prepare arguments for __vmalloc_area_node() and + * kasan_unpoison_vmalloc(). + */ + if (pgprot_val(prot) == pgprot_val(PAGE_KERNEL)) { + if (kasan_hw_tags_enabled()) { + /* + * Modify protection bits to allow tagging. + * This must be done before mapping. + */ + prot = arch_vmap_pgprot_tagged(prot); - /* - * Skip page_alloc poisoning and zeroing for physical pages - * backing VM_ALLOC mapping. Memory is instead poisoned and - * zeroed by kasan_unpoison_vmalloc(). - */ - gfp_mask |= __GFP_SKIP_KASAN_UNPOISON | __GFP_SKIP_ZERO; + /* + * Skip page_alloc poisoning and zeroing for physical + * pages backing VM_ALLOC mapping. Memory is instead + * poisoned and zeroed by kasan_unpoison_vmalloc(). + */ + gfp_mask |= __GFP_SKIP_KASAN_UNPOISON | __GFP_SKIP_ZERO; + } + + /* Take note that the mapping is PAGE_KERNEL. */ + kasan_flags |= KASAN_VMALLOC_PROT_NORMAL; } /* Allocate physical pages and map them into vmalloc space. */ @@ -3152,10 +3159,13 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align, * (except for the should_skip_init() check) to make sure that memory * is initialized under the same conditions regardless of the enabled * KASAN mode. + * Tag-based KASAN modes only assign tags to normal non-executable + * allocations, see __kasan_unpoison_vmalloc(). */ - kasan_flags = KASAN_VMALLOC_VM_ALLOC; + kasan_flags |= KASAN_VMALLOC_VM_ALLOC; if (!want_init_on_free() && want_init_on_alloc(gfp_mask)) kasan_flags |= KASAN_VMALLOC_INIT; + /* KASAN_VMALLOC_PROT_NORMAL already set if required. */ area->addr = kasan_unpoison_vmalloc(area->addr, real_size, kasan_flags); /* @@ -3861,8 +3871,7 @@ struct vm_struct **pcpu_get_vm_areas(const unsigned long *offsets, */ for (area = 0; area < nr_vms; area++) vms[area]->addr = kasan_unpoison_vmalloc(vms[area]->addr, - vms[area]->size, - KASAN_VMALLOC_NONE); + vms[area]->size, KASAN_VMALLOC_PROT_NORMAL); kfree(vas); return vms; -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: andrey.konovalov@linux.dev To: Andrew Morton <akpm@linux-foundation.org> Cc: Andrey Konovalov <andreyknvl@gmail.com>, Marco Elver <elver@google.com>, Alexander Potapenko <glider@google.com>, Dmitry Vyukov <dvyukov@google.com>, Andrey Ryabinin <ryabinin.a.a@gmail.com>, kasan-dev@googlegroups.com, linux-mm@kvack.org, Vincenzo Frascino <vincenzo.frascino@arm.com>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Mark Rutland <mark.rutland@arm.com>, linux-arm-kernel@lists.infradead.org, Peter Collingbourne <pcc@google.com>, Evgenii Stepanov <eugenis@google.com>, linux-kernel@vger.kernel.org, Andrey Konovalov <andreyknvl@google.com> Subject: [PATCH v6 31/39] kasan, vmalloc: only tag normal vmalloc allocations Date: Mon, 24 Jan 2022 19:05:05 +0100 [thread overview] Message-ID: <fbfd9939a4dc375923c9a5c6b9e7ab05c26b8c6b.1643047180.git.andreyknvl@google.com> (raw) In-Reply-To: <cover.1643047180.git.andreyknvl@google.com> From: Andrey Konovalov <andreyknvl@google.com> The kernel can use to allocate executable memory. The only supported way to do that is via __vmalloc_node_range() with the executable bit set in the prot argument. (vmap() resets the bit via pgprot_nx()). Once tag-based KASAN modes start tagging vmalloc allocations, executing code from such allocations will lead to the PC register getting a tag, which is not tolerated by the kernel. Only tag the allocations for normal kernel pages. Signed-off-by: Andrey Konovalov <andreyknvl@google.com> --- Changes v3->v4: - Rename KASAN_VMALLOC_NOEXEC to KASAN_VMALLOC_PROT_NORMAL. - Compare with PAGE_KERNEL instead of using pgprot_nx(). - Update patch description. Changes v2->v3: - Add this patch. --- include/linux/kasan.h | 7 ++++--- mm/kasan/hw_tags.c | 7 +++++++ mm/kasan/shadow.c | 7 +++++++ mm/vmalloc.c | 49 +++++++++++++++++++++++++------------------ 4 files changed, 47 insertions(+), 23 deletions(-) diff --git a/include/linux/kasan.h b/include/linux/kasan.h index 499f1573dba4..3593c95d1fa5 100644 --- a/include/linux/kasan.h +++ b/include/linux/kasan.h @@ -27,9 +27,10 @@ struct kunit_kasan_expectation { typedef unsigned int __bitwise kasan_vmalloc_flags_t; -#define KASAN_VMALLOC_NONE 0x00u -#define KASAN_VMALLOC_INIT 0x01u -#define KASAN_VMALLOC_VM_ALLOC 0x02u +#define KASAN_VMALLOC_NONE 0x00u +#define KASAN_VMALLOC_INIT 0x01u +#define KASAN_VMALLOC_VM_ALLOC 0x02u +#define KASAN_VMALLOC_PROT_NORMAL 0x04u #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c index 21104fd51872..2e9378a4f07f 100644 --- a/mm/kasan/hw_tags.c +++ b/mm/kasan/hw_tags.c @@ -247,6 +247,13 @@ void *__kasan_unpoison_vmalloc(const void *start, unsigned long size, if (!(flags & KASAN_VMALLOC_VM_ALLOC)) return (void *)start; + /* + * Don't tag executable memory. + * The kernel doesn't tolerate having the PC register tagged. + */ + if (!(flags & KASAN_VMALLOC_PROT_NORMAL)) + return (void *)start; + tag = kasan_random_tag(); start = set_tag(start, tag); diff --git a/mm/kasan/shadow.c b/mm/kasan/shadow.c index b958babc8fed..7272e248db87 100644 --- a/mm/kasan/shadow.c +++ b/mm/kasan/shadow.c @@ -488,6 +488,13 @@ void *__kasan_unpoison_vmalloc(const void *start, unsigned long size, if (!is_vmalloc_or_module_addr(start)) return (void *)start; + /* + * Don't tag executable memory. + * The kernel doesn't tolerate having the PC register tagged. + */ + if (!(flags & KASAN_VMALLOC_PROT_NORMAL)) + return (void *)start; + start = set_tag(start, kasan_random_tag()); kasan_unpoison(start, size, false); return (void *)start; diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 6dcdf815576b..375b53fd939f 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -2221,7 +2221,7 @@ void *vm_map_ram(struct page **pages, unsigned int count, int node) * With hardware tag-based KASAN, marking is skipped for * non-VM_ALLOC mappings, see __kasan_unpoison_vmalloc(). */ - mem = kasan_unpoison_vmalloc(mem, size, KASAN_VMALLOC_NONE); + mem = kasan_unpoison_vmalloc(mem, size, KASAN_VMALLOC_PROT_NORMAL); return mem; } @@ -2460,7 +2460,7 @@ static struct vm_struct *__get_vm_area_node(unsigned long size, */ if (!(flags & VM_ALLOC)) area->addr = kasan_unpoison_vmalloc(area->addr, requested_size, - KASAN_VMALLOC_NONE); + KASAN_VMALLOC_PROT_NORMAL); return area; } @@ -3071,7 +3071,7 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align, { struct vm_struct *area; void *ret; - kasan_vmalloc_flags_t kasan_flags; + kasan_vmalloc_flags_t kasan_flags = KASAN_VMALLOC_NONE; unsigned long real_size = size; unsigned long real_align = align; unsigned int shift = PAGE_SHIFT; @@ -3124,21 +3124,28 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align, goto fail; } - /* Prepare arguments for __vmalloc_area_node(). */ - if (kasan_hw_tags_enabled() && - pgprot_val(prot) == pgprot_val(PAGE_KERNEL)) { - /* - * Modify protection bits to allow tagging. - * This must be done before mapping in __vmalloc_area_node(). - */ - prot = arch_vmap_pgprot_tagged(prot); + /* + * Prepare arguments for __vmalloc_area_node() and + * kasan_unpoison_vmalloc(). + */ + if (pgprot_val(prot) == pgprot_val(PAGE_KERNEL)) { + if (kasan_hw_tags_enabled()) { + /* + * Modify protection bits to allow tagging. + * This must be done before mapping. + */ + prot = arch_vmap_pgprot_tagged(prot); - /* - * Skip page_alloc poisoning and zeroing for physical pages - * backing VM_ALLOC mapping. Memory is instead poisoned and - * zeroed by kasan_unpoison_vmalloc(). - */ - gfp_mask |= __GFP_SKIP_KASAN_UNPOISON | __GFP_SKIP_ZERO; + /* + * Skip page_alloc poisoning and zeroing for physical + * pages backing VM_ALLOC mapping. Memory is instead + * poisoned and zeroed by kasan_unpoison_vmalloc(). + */ + gfp_mask |= __GFP_SKIP_KASAN_UNPOISON | __GFP_SKIP_ZERO; + } + + /* Take note that the mapping is PAGE_KERNEL. */ + kasan_flags |= KASAN_VMALLOC_PROT_NORMAL; } /* Allocate physical pages and map them into vmalloc space. */ @@ -3152,10 +3159,13 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align, * (except for the should_skip_init() check) to make sure that memory * is initialized under the same conditions regardless of the enabled * KASAN mode. + * Tag-based KASAN modes only assign tags to normal non-executable + * allocations, see __kasan_unpoison_vmalloc(). */ - kasan_flags = KASAN_VMALLOC_VM_ALLOC; + kasan_flags |= KASAN_VMALLOC_VM_ALLOC; if (!want_init_on_free() && want_init_on_alloc(gfp_mask)) kasan_flags |= KASAN_VMALLOC_INIT; + /* KASAN_VMALLOC_PROT_NORMAL already set if required. */ area->addr = kasan_unpoison_vmalloc(area->addr, real_size, kasan_flags); /* @@ -3861,8 +3871,7 @@ struct vm_struct **pcpu_get_vm_areas(const unsigned long *offsets, */ for (area = 0; area < nr_vms; area++) vms[area]->addr = kasan_unpoison_vmalloc(vms[area]->addr, - vms[area]->size, - KASAN_VMALLOC_NONE); + vms[area]->size, KASAN_VMALLOC_PROT_NORMAL); kfree(vas); return vms; -- 2.25.1 _______________________________________________ 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:[~2022-01-24 18:07 UTC|newest] Thread overview: 113+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-01-24 18:02 [PATCH v6 00/39] kasan, vmalloc, arm64: add vmalloc tagging support for SW/HW_TAGS andrey.konovalov 2022-01-24 18:02 ` andrey.konovalov 2022-01-24 18:02 ` [PATCH v6 01/39] kasan, page_alloc: deduplicate should_skip_kasan_poison andrey.konovalov 2022-01-24 18:02 ` andrey.konovalov 2022-01-24 18:02 ` [PATCH v6 02/39] kasan, page_alloc: move tag_clear_highpage out of kernel_init_free_pages andrey.konovalov 2022-01-24 18:02 ` andrey.konovalov 2022-01-24 18:02 ` [PATCH v6 03/39] kasan, page_alloc: merge kasan_free_pages into free_pages_prepare andrey.konovalov 2022-01-24 18:02 ` andrey.konovalov 2022-01-24 18:02 ` [PATCH v6 04/39] kasan, page_alloc: simplify kasan_poison_pages call site andrey.konovalov 2022-01-24 18:02 ` andrey.konovalov 2022-01-24 18:02 ` [PATCH v6 05/39] kasan, page_alloc: init memory of skipped pages on free andrey.konovalov 2022-01-24 18:02 ` andrey.konovalov 2022-01-24 18:02 ` [PATCH v6 06/39] kasan: drop skip_kasan_poison variable in free_pages_prepare andrey.konovalov 2022-01-24 18:02 ` andrey.konovalov 2022-01-24 18:02 ` [PATCH v6 07/39] mm: clarify __GFP_ZEROTAGS comment andrey.konovalov 2022-01-24 18:02 ` andrey.konovalov 2022-01-24 18:02 ` [PATCH v6 08/39] kasan: only apply __GFP_ZEROTAGS when memory is zeroed andrey.konovalov 2022-01-24 18:02 ` andrey.konovalov 2022-01-24 18:02 ` [PATCH v6 09/39] kasan, page_alloc: refactor init checks in post_alloc_hook andrey.konovalov 2022-01-24 18:02 ` andrey.konovalov 2022-01-24 18:02 ` [PATCH v6 10/39] kasan, page_alloc: merge kasan_alloc_pages into post_alloc_hook andrey.konovalov 2022-01-24 18:02 ` andrey.konovalov 2022-01-24 18:02 ` [PATCH v6 11/39] kasan, page_alloc: combine tag_clear_highpage calls in post_alloc_hook andrey.konovalov 2022-01-24 18:02 ` andrey.konovalov 2022-01-24 18:02 ` [PATCH v6 12/39] kasan, page_alloc: move SetPageSkipKASanPoison " andrey.konovalov 2022-01-24 18:02 ` andrey.konovalov 2022-01-24 18:02 ` [PATCH v6 13/39] kasan, page_alloc: move kernel_init_free_pages " andrey.konovalov 2022-01-24 18:02 ` andrey.konovalov 2022-01-24 18:02 ` [PATCH v6 14/39] kasan, page_alloc: rework kasan_unpoison_pages call site andrey.konovalov 2022-01-24 18:02 ` andrey.konovalov 2022-01-24 18:02 ` [PATCH v6 15/39] kasan: clean up metadata byte definitions andrey.konovalov 2022-01-24 18:02 ` andrey.konovalov 2022-01-24 18:02 ` [PATCH v6 16/39] kasan: define KASAN_VMALLOC_INVALID for SW_TAGS andrey.konovalov 2022-01-24 18:02 ` andrey.konovalov 2022-01-24 18:04 ` [PATCH v6 17/39] kasan, x86, arm64, s390: rename functions for modules shadow andrey.konovalov 2022-01-24 18:04 ` andrey.konovalov 2022-01-24 18:04 ` [PATCH v6 18/39] kasan, vmalloc: drop outdated VM_KASAN comment andrey.konovalov 2022-01-24 18:04 ` andrey.konovalov 2022-01-24 18:04 ` [PATCH v6 19/39] kasan: reorder vmalloc hooks andrey.konovalov 2022-01-24 18:04 ` andrey.konovalov 2022-01-24 18:04 ` [PATCH v6 20/39] kasan: add wrappers for " andrey.konovalov 2022-01-24 18:04 ` andrey.konovalov 2022-01-24 18:04 ` [PATCH v6 21/39] kasan, vmalloc: reset tags in vmalloc functions andrey.konovalov 2022-01-24 18:04 ` andrey.konovalov 2022-01-24 18:04 ` [PATCH v6 22/39] kasan, fork: reset pointer tags of vmapped stacks andrey.konovalov 2022-01-24 18:04 ` andrey.konovalov 2022-01-24 18:04 ` [PATCH v6 23/39] kasan, arm64: " andrey.konovalov 2022-01-24 18:04 ` andrey.konovalov 2022-01-24 18:04 ` [PATCH v6 24/39] kasan, vmalloc: add vmalloc tagging for SW_TAGS andrey.konovalov 2022-01-24 18:04 ` andrey.konovalov 2022-01-24 18:04 ` [PATCH v6 25/39] kasan, vmalloc, arm64: mark vmalloc mappings as pgprot_tagged andrey.konovalov 2022-01-24 18:04 ` andrey.konovalov 2022-01-24 18:05 ` [PATCH v6 26/39] kasan, vmalloc: unpoison VM_ALLOC pages after mapping andrey.konovalov 2022-01-24 18:05 ` andrey.konovalov 2022-01-24 18:05 ` [PATCH v6 27/39] kasan, mm: only define ___GFP_SKIP_KASAN_POISON with HW_TAGS andrey.konovalov 2022-01-24 18:05 ` andrey.konovalov 2022-03-23 11:48 ` Vlastimil Babka 2022-03-23 11:48 ` Vlastimil Babka 2022-03-23 13:02 ` Sebastian Andrzej Siewior 2022-03-23 13:02 ` Sebastian Andrzej Siewior 2022-03-23 13:19 ` Vlastimil Babka 2022-03-23 13:19 ` Vlastimil Babka 2022-03-23 13:36 ` Andrey Konovalov 2022-03-23 13:36 ` Andrey Konovalov 2022-03-23 13:57 ` Vlastimil Babka 2022-03-23 13:57 ` Vlastimil Babka 2022-03-23 15:11 ` Matthew Wilcox 2022-03-23 15:11 ` Matthew Wilcox 2022-03-25 21:13 ` Andrew Morton 2022-03-25 21:13 ` Andrew Morton 2022-01-24 18:05 ` [PATCH v6 28/39] kasan, page_alloc: allow skipping unpoisoning for HW_TAGS andrey.konovalov 2022-01-24 18:05 ` andrey.konovalov 2022-01-24 18:05 ` [PATCH v6 29/39] kasan, page_alloc: allow skipping memory init " andrey.konovalov 2022-01-24 18:05 ` andrey.konovalov 2022-01-24 18:05 ` [PATCH v6 30/39] kasan, vmalloc: add vmalloc tagging " andrey.konovalov 2022-01-24 18:05 ` andrey.konovalov 2022-01-25 3:17 ` kernel test robot 2022-01-24 18:05 ` andrey.konovalov [this message] 2022-01-24 18:05 ` [PATCH v6 31/39] kasan, vmalloc: only tag normal vmalloc allocations andrey.konovalov 2022-01-25 4:19 ` kernel test robot 2022-01-25 7:56 ` kernel test robot 2022-03-08 15:17 ` Vasily Gorbik 2022-03-08 15:17 ` Vasily Gorbik 2022-03-08 15:30 ` Andrey Konovalov 2022-03-08 15:30 ` Andrey Konovalov 2022-03-08 15:48 ` Vasily Gorbik 2022-03-08 15:48 ` Vasily Gorbik 2022-01-24 18:05 ` [PATCH v6 32/39] kasan, arm64: don't tag executable " andrey.konovalov 2022-01-24 18:05 ` andrey.konovalov 2022-01-24 18:05 ` [PATCH v6 33/39] kasan: mark kasan_arg_stacktrace as __initdata andrey.konovalov 2022-01-24 18:05 ` andrey.konovalov 2022-01-24 18:05 ` [PATCH v6 34/39] kasan: clean up feature flags for HW_TAGS mode andrey.konovalov 2022-01-24 18:05 ` andrey.konovalov 2022-01-24 18:05 ` [PATCH v6 35/39] kasan: add kasan.vmalloc command line flag andrey.konovalov 2022-01-24 18:05 ` andrey.konovalov 2022-01-24 18:05 ` [PATCH v6 36/39] kasan: allow enabling KASAN_VMALLOC and SW/HW_TAGS andrey.konovalov 2022-01-24 18:05 ` andrey.konovalov 2022-01-24 18:05 ` [PATCH v6 37/39] arm64: select KASAN_VMALLOC for SW/HW_TAGS modes andrey.konovalov 2022-01-24 18:05 ` andrey.konovalov 2022-01-24 18:05 ` [PATCH v6 38/39] kasan: documentation updates andrey.konovalov 2022-01-24 18:05 ` andrey.konovalov 2022-01-24 18:05 ` [PATCH v6 39/39] kasan: improve vmalloc tests andrey.konovalov 2022-01-24 18:05 ` andrey.konovalov 2022-01-24 18:09 ` [PATCH v6 00/39] kasan, vmalloc, arm64: add vmalloc tagging support for SW/HW_TAGS Marco Elver 2022-01-24 18:09 ` Marco Elver 2022-01-24 18:32 ` Andrey Konovalov 2022-01-24 18:32 ` Andrey Konovalov 2022-04-28 14:13 ` Qian Cai 2022-04-28 14:13 ` Qian Cai 2022-04-28 15:28 ` Andrey Konovalov 2022-04-28 15:28 ` Andrey Konovalov 2022-04-28 16:12 ` Qian Cai 2022-04-28 16:12 ` Qian Cai
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