From: Alexander Potapenko <glider@google.com>
To: glider@google.com
Cc: Alexander Viro <viro@zeniv.linux.org.uk>,
Andrew Morton <akpm@linux-foundation.org>,
Andrey Konovalov <andreyknvl@google.com>,
Andy Lutomirski <luto@kernel.org>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Arnd Bergmann <arnd@arndb.de>, Borislav Petkov <bp@alien8.de>,
Christoph Hellwig <hch@lst.de>, Christoph Lameter <cl@linux.com>,
David Rientjes <rientjes@google.com>,
Dmitry Vyukov <dvyukov@google.com>,
Eric Dumazet <edumazet@google.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Herbert Xu <herbert@gondor.apana.org.au>,
Ilya Leoshkevich <iii@linux.ibm.com>,
Ingo Molnar <mingo@redhat.com>, Jens Axboe <axboe@kernel.dk>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Kees Cook <keescook@chromium.org>, Marco Elver <elver@google.com>,
Matthew Wilcox <willy@infradead.org>,
"Michael S. Tsirkin" <mst@redhat.com>,
Pekka Enberg <penberg@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Petr Mladek <pmladek@suse.com>,
Steven Rostedt <rostedt@goodmis.org>,
Thomas Gleixner <tglx@linutronix.de>,
Vasily Gorbik <gor@linux.ibm.com>,
Vegard Nossum <vegard.nossum@oracle.com>,
Vlastimil Babka <vbabka@suse.cz>,
linux-mm@kvack.org, linux-arch@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 17/43] kmsan: handle task creation and exiting
Date: Tue, 14 Dec 2021 17:20:24 +0100 [thread overview]
Message-ID: <20211214162050.660953-18-glider@google.com> (raw)
In-Reply-To: <20211214162050.660953-1-glider@google.com>
Tell KMSAN that a new task is created, so the tool creates a backing
metadata structure for that task.
Signed-off-by: Alexander Potapenko <glider@google.com>
---
Link: https://linux-review.googlesource.com/id/I0f41c3a1c7d66f7e14aabcfdfc7c69addb945805
---
kernel/exit.c | 2 ++
kernel/fork.c | 2 ++
2 files changed, 4 insertions(+)
diff --git a/kernel/exit.c b/kernel/exit.c
index f702a6a63686e..a276f6716dcd5 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -59,6 +59,7 @@
#include <linux/writeback.h>
#include <linux/shm.h>
#include <linux/kcov.h>
+#include <linux/kmsan.h>
#include <linux/random.h>
#include <linux/rcuwait.h>
#include <linux/compat.h>
@@ -767,6 +768,7 @@ void __noreturn do_exit(long code)
profile_task_exit(tsk);
kcov_task_exit(tsk);
+ kmsan_task_exit(tsk);
coredump_task_exit(tsk);
ptrace_event(PTRACE_EVENT_EXIT, code);
diff --git a/kernel/fork.c b/kernel/fork.c
index 3244cc56b697d..5d53ffab2cda7 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -37,6 +37,7 @@
#include <linux/fdtable.h>
#include <linux/iocontext.h>
#include <linux/key.h>
+#include <linux/kmsan.h>
#include <linux/binfmts.h>
#include <linux/mman.h>
#include <linux/mmu_notifier.h>
@@ -955,6 +956,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig, int node)
account_kernel_stack(tsk, 1);
kcov_task_init(tsk);
+ kmsan_task_create(tsk);
kmap_local_fork(tsk);
#ifdef CONFIG_FAULT_INJECTION
--
2.34.1.173.g76aa8bc2d0-goog
next prev parent reply other threads:[~2021-12-14 16:22 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-14 16:20 [PATCH 00/43] Add KernelMemorySanitizer infrastructure Alexander Potapenko
2021-12-14 16:20 ` [PATCH 01/43] arch/x86: add missing include to sparsemem.h Alexander Potapenko
2021-12-14 16:20 ` [PATCH 02/43] stackdepot: reserve 5 extra bits in depot_stack_handle_t Alexander Potapenko
2021-12-14 16:20 ` [PATCH 03/43] kasan: common: adapt to the new prototype of __stack_depot_save() Alexander Potapenko
2021-12-14 16:20 ` [PATCH 04/43] instrumented.h: allow instrumenting both sides of copy_from_user() Alexander Potapenko
2021-12-14 16:20 ` [PATCH 05/43] asm: x86: instrument usercopy in get_user() and __put_user_size() Alexander Potapenko
2021-12-14 16:20 ` [PATCH 06/43] asm-generic: instrument usercopy in cacheflush.h Alexander Potapenko
2021-12-14 16:20 ` [PATCH 07/43] compiler_attributes.h: add __disable_sanitizer_instrumentation Alexander Potapenko
2021-12-15 13:24 ` Mark Rutland
2021-12-15 13:33 ` Marco Elver
2021-12-14 16:20 ` [PATCH 08/43] kmsan: add ReST documentation Alexander Potapenko
2021-12-14 16:20 ` [PATCH 09/43] kmsan: introduce __no_sanitize_memory and __no_kmsan_checks Alexander Potapenko
2021-12-15 13:27 ` Mark Rutland
2021-12-14 16:20 ` [PATCH 10/43] kmsan: pgtable: reduce vmalloc space Alexander Potapenko
2021-12-15 13:36 ` Mark Rutland
2022-03-18 14:14 ` Alexander Potapenko
2021-12-14 16:20 ` [PATCH 11/43] libnvdimm/pfn_dev: increase MAX_STRUCT_PAGE_SIZE Alexander Potapenko
2021-12-14 16:20 ` [PATCH 12/43] kcsan: clang: retire CONFIG_KCSAN_KCOV_BROKEN Alexander Potapenko
2021-12-15 13:33 ` Mark Rutland
2021-12-15 13:39 ` Marco Elver
2021-12-15 14:43 ` Mark Rutland
2022-03-18 14:34 ` Alexander Potapenko
2021-12-14 16:20 ` [PATCH 13/43] kmsan: add KMSAN runtime core Alexander Potapenko
2021-12-14 16:34 ` Greg Kroah-Hartman
2021-12-16 10:33 ` Alexander Potapenko
2021-12-17 16:22 ` Greg Kroah-Hartman
2022-03-21 14:12 ` Alexander Potapenko
[not found] ` <CACT4Y+Y_torRwzh0eDMn+pJh=YT26hGrAPA499WqN1dV+4bDHA@mail.gmail.com>
2022-03-21 13:17 ` Alexander Potapenko
2021-12-14 16:20 ` [PATCH 14/43] MAINTAINERS: add entry for KMSAN Alexander Potapenko
2021-12-14 16:20 ` [PATCH 15/43] kmsan: mm: maintain KMSAN metadata for page operations Alexander Potapenko
2021-12-14 16:20 ` [PATCH 16/43] kmsan: mm: call KMSAN hooks from SLUB code Alexander Potapenko
2022-01-07 17:22 ` Vlastimil Babka
2022-03-25 13:15 ` Alexander Potapenko
2021-12-14 16:20 ` Alexander Potapenko [this message]
2021-12-14 16:20 ` [PATCH 18/43] kmsan: unpoison @tlb in arch_tlb_gather_mmu() Alexander Potapenko
2021-12-14 16:20 ` [PATCH 19/43] kmsan: init: call KMSAN initialization routines Alexander Potapenko
2021-12-14 16:20 ` [PATCH 20/43] instrumented.h: add KMSAN support Alexander Potapenko
2021-12-14 16:20 ` [PATCH 21/43] kmsan: mark noinstr as __no_sanitize_memory Alexander Potapenko
2021-12-15 13:49 ` Mark Rutland
2021-12-14 16:20 ` [PATCH 22/43] kmsan: initialize the output of READ_ONCE_NOCHECK() Alexander Potapenko
2021-12-14 16:20 ` [PATCH 23/43] kmsan: make READ_ONCE_TASK_STACK() return initialized values Alexander Potapenko
2021-12-14 16:20 ` [PATCH 24/43] kmsan: disable KMSAN instrumentation for certain kernel parts Alexander Potapenko
2021-12-15 13:53 ` Mark Rutland
2021-12-14 16:20 ` [PATCH 25/43] kmsan: skip shadow checks in files doing context switches Alexander Potapenko
2021-12-15 14:13 ` Mark Rutland
2021-12-15 16:28 ` Alexander Potapenko
2021-12-15 17:22 ` Mark Rutland
2021-12-14 16:20 ` [PATCH 26/43] kmsan: virtio: check/unpoison scatterlist in vring_map_one_sg() Alexander Potapenko
2022-01-06 12:46 ` Michael S. Tsirkin
2021-12-14 16:20 ` [PATCH 27/43] x86: kmsan: add iomem support Alexander Potapenko
2021-12-14 16:20 ` [PATCH 28/43] kmsan: dma: unpoison DMA mappings Alexander Potapenko
2021-12-14 16:20 ` [PATCH 29/43] kmsan: handle memory sent to/from USB Alexander Potapenko
2021-12-14 16:20 ` [PATCH 30/43] kmsan: add tests for KMSAN Alexander Potapenko
2021-12-14 16:20 ` [PATCH 31/43] kmsan: disable strscpy() optimization under KMSAN Alexander Potapenko
2021-12-14 16:20 ` [PATCH 32/43] crypto: kmsan: disable accelerated configs " Alexander Potapenko
2021-12-14 16:20 ` [PATCH 33/43] kmsan: disable physical page merging in biovec Alexander Potapenko
2021-12-15 14:17 ` Mark Rutland
2021-12-15 16:30 ` Alexander Potapenko
2021-12-14 16:20 ` [PATCH 34/43] kmsan: block: skip bio block merging logic for KMSAN Alexander Potapenko
2021-12-14 16:20 ` [PATCH 35/43] x86: kmsan: use __msan_ string functions where possible Alexander Potapenko
2021-12-14 16:20 ` [PATCH 36/43] x86: kmsan: sync metadata pages on page fault Alexander Potapenko
2021-12-14 16:20 ` [PATCH 37/43] x86: kasan: kmsan: support CONFIG_GENERIC_CSUM on x86, enable it for KASAN/KMSAN Alexander Potapenko
2021-12-14 16:20 ` [PATCH 38/43] x86: fs: kmsan: disable CONFIG_DCACHE_WORD_ACCESS Alexander Potapenko
2021-12-14 16:20 ` [PATCH 39/43] x86: kmsan: handle register passing from uninstrumented code Alexander Potapenko
2021-12-17 21:51 ` Thomas Gleixner
2021-12-20 14:35 ` Alexander Potapenko
2021-12-14 16:20 ` [PATCH 40/43] kmsan: kcov: unpoison area->list in kcov_remote_area_put() Alexander Potapenko
2021-12-14 16:20 ` [PATCH 41/43] security: kmsan: fix interoperability with auto-initialization Alexander Potapenko
2021-12-14 16:38 ` Greg Kroah-Hartman
2021-12-14 17:00 ` Alexander Potapenko
2021-12-14 17:33 ` Greg Kroah-Hartman
2021-12-14 16:20 ` [PATCH 42/43] objtool: kmsan: list KMSAN API functions as uaccess-safe Alexander Potapenko
2021-12-14 16:20 ` [PATCH 43/43] x86: kmsan: enable KMSAN builds for x86 Alexander Potapenko
2021-12-14 16:36 ` [PATCH 00/43] Add KernelMemorySanitizer infrastructure Greg Kroah-Hartman
2021-12-16 10:12 ` Alexander Potapenko
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