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From: glider@google.com
To: Andrew Morton <akpm@linux-foundation.org>,
	 Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Eric Dumazet <edumazet@google.com>,
	 Wolfram Sang <wsa@the-dreams.de>, Petr Mladek <pmladek@suse.com>,
	 Vegard Nossum <vegard.nossum@oracle.com>,
	Dmitry Vyukov <dvyukov@google.com>,
	linux-mm@kvack.org
Cc: glider@google.com, viro@zeniv.linux.org.uk,
	adilger.kernel@dilger.ca,  andreyknvl@google.com,
	aryabinin@virtuozzo.com, luto@kernel.org,
	 ard.biesheuvel@linaro.org, arnd@arndb.de, hch@infradead.org,
	hch@lst.de,  darrick.wong@oracle.com, davem@davemloft.net,
	dmitry.torokhov@gmail.com,  ebiggers@google.com,
	ericvh@gmail.com, harry.wentland@amd.com,
	 herbert@gondor.apana.org.au, iii@linux.ibm.com, mingo@elte.hu,
	 jasowang@redhat.com, axboe@kernel.dk, m.szyprowski@samsung.com,
	 elver@google.com, mark.rutland@arm.com,
	martin.petersen@oracle.com,  schwidefsky@de.ibm.com,
	willy@infradead.org, mst@redhat.com, monstr@monstr.eu,
	 cai@lca.pw, rdunlap@infradead.org, robin.murphy@arm.com,
	 sergey.senozhatsky@gmail.com, rostedt@goodmis.org,
	tiwai@suse.com,  tytso@mit.edu, tglx@linutronix.de,
	gor@linux.ibm.com
Subject: [PATCH RFC v3 23/36] kmsan: call KMSAN hooks where needed
Date: Fri, 22 Nov 2019 12:26:08 +0100
Message-ID: <20191122112621.204798-24-glider@google.com> (raw)
In-Reply-To: <20191122112621.204798-1-glider@google.com>

Insert KMSAN hooks that check for potential memory errors and/or make
necessary bookkeeping changes:
 - allocate/split/deallocate metadata pages in
   alloc_pages()/split_page()/free_page();
 - clear page shadow and origins in clear_page(), copy_user_highpage();
 - copy page metadata in copy_highpage(), wp_page_copy();
 - handle vmap()/vunmap()/iounmap();
 - handle task creation and deletion;
 - initialize result of vscnprintf() in vprintk_store();
 - call softirq entry/exit hooks in kernel/softirq.c;
 - check/initialize memory sent to/read from USB, I2C, and network

Signed-off-by: Alexander Potapenko <glider@google.com>
To: Alexander Potapenko <glider@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Vegard Nossum <vegard.nossum@oracle.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: linux-mm@kvack.org
---

v2:
 - dropped call to kmsan_handle_vprintk, updated comment in printk.c

v3:
 - put KMSAN_INIT_VALUE on a separate line in vprintk_store()
 - dropped call to kmsan_handle_i2c_transfer()

Change-Id: I1250a928d9263bf71fdaa067a070bdee686ef47b
---
 arch/x86/include/asm/page_64.h | 13 +++++++++++++
 arch/x86/mm/ioremap.c          |  3 +++
 drivers/usb/core/urb.c         |  2 ++
 include/linux/highmem.h        |  4 ++++
 kernel/exit.c                  |  2 ++
 kernel/fork.c                  |  2 ++
 kernel/kthread.c               |  2 ++
 kernel/printk/printk.c         |  6 ++++++
 kernel/softirq.c               |  5 +++++
 lib/ioremap.c                  |  5 +++++
 mm/compaction.c                |  9 +++++++++
 mm/gup.c                       |  3 +++
 mm/memory.c                    |  2 ++
 mm/page_alloc.c                | 16 ++++++++++++++++
 mm/vmalloc.c                   | 23 +++++++++++++++++++++--
 net/sched/sch_generic.c        |  2 ++
 16 files changed, 97 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/page_64.h b/arch/x86/include/asm/page_64.h
index 939b1cff4a7b..0ba43d93414f 100644
--- a/arch/x86/include/asm/page_64.h
+++ b/arch/x86/include/asm/page_64.h
@@ -44,14 +44,27 @@ void clear_page_orig(void *page);
 void clear_page_rep(void *page);
 void clear_page_erms(void *page);
 
+/* This is an assembly header, avoid including too much of kmsan.h */
+#ifdef CONFIG_KMSAN
+void kmsan_clear_page(void *page_addr);
+#endif
+__no_sanitize_memory
 static inline void clear_page(void *page)
 {
+#ifdef CONFIG_KMSAN
+	/* alternative_call_2() changes |page|. */
+	void *page_copy = page;
+#endif
 	alternative_call_2(clear_page_orig,
 			   clear_page_rep, X86_FEATURE_REP_GOOD,
 			   clear_page_erms, X86_FEATURE_ERMS,
 			   "=D" (page),
 			   "0" (page)
 			   : "cc", "memory", "rax", "rcx");
+#ifdef CONFIG_KMSAN
+	/* Clear KMSAN shadow for the pages that have it. */
+	kmsan_clear_page(page_copy);
+#endif
 }
 
 void copy_page(void *to, void *from);
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index a39dcdb5ae34..fdb2abc11a82 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -7,6 +7,7 @@
  * (C) Copyright 1995 1996 Linus Torvalds
  */
 
+#include <linux/kmsan.h>
 #include <linux/memblock.h>
 #include <linux/init.h>
 #include <linux/io.h>
@@ -451,6 +452,8 @@ void iounmap(volatile void __iomem *addr)
 		return;
 	}
 
+	kmsan_iounmap_page_range((unsigned long)addr,
+		(unsigned long)addr + get_vm_area_size(p));
 	free_memtype(p->phys_addr, p->phys_addr + get_vm_area_size(p));
 
 	/* Finally remove it */
diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c
index 0eab79f82ce4..5bdb54d71c2e 100644
--- a/drivers/usb/core/urb.c
+++ b/drivers/usb/core/urb.c
@@ -8,6 +8,7 @@
 #include <linux/bitops.h>
 #include <linux/slab.h>
 #include <linux/log2.h>
+#include <linux/kmsan-checks.h>
 #include <linux/usb.h>
 #include <linux/wait.h>
 #include <linux/usb/hcd.h>
@@ -401,6 +402,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
 			URB_SETUP_MAP_SINGLE | URB_SETUP_MAP_LOCAL |
 			URB_DMA_SG_COMBINED);
 	urb->transfer_flags |= (is_out ? URB_DIR_OUT : URB_DIR_IN);
+	kmsan_handle_urb(urb, is_out);
 
 	if (xfertype != USB_ENDPOINT_XFER_CONTROL &&
 			dev->state < USB_STATE_CONFIGURED)
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index ea5cdbd8c2c3..623b56f48685 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -5,6 +5,7 @@
 #include <linux/fs.h>
 #include <linux/kernel.h>
 #include <linux/bug.h>
+#include <linux/kmsan.h>
 #include <linux/mm.h>
 #include <linux/uaccess.h>
 #include <linux/hardirq.h>
@@ -255,6 +256,8 @@ static inline void copy_user_highpage(struct page *to, struct page *from,
 	vfrom = kmap_atomic(from);
 	vto = kmap_atomic(to);
 	copy_user_page(vto, vfrom, vaddr, to);
+	/* User pages don't have shadow, just clear the destination. */
+	kmsan_clear_page(page_address(to));
 	kunmap_atomic(vto);
 	kunmap_atomic(vfrom);
 }
@@ -270,6 +273,7 @@ static inline void copy_highpage(struct page *to, struct page *from)
 	vfrom = kmap_atomic(from);
 	vto = kmap_atomic(to);
 	copy_page(vto, vfrom);
+	kmsan_copy_page_meta(to, from);
 	kunmap_atomic(vto);
 	kunmap_atomic(vfrom);
 }
diff --git a/kernel/exit.c b/kernel/exit.c
index a46a50d67002..9e3ce929110b 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -60,6 +60,7 @@
 #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>
@@ -719,6 +720,7 @@ void __noreturn do_exit(long code)
 
 	profile_task_exit(tsk);
 	kcov_task_exit(tsk);
+	kmsan_task_exit(tsk);
 
 	WARN_ON(blk_needs_flush_plug(tsk));
 
diff --git a/kernel/fork.c b/kernel/fork.c
index bcdf53125210..0f08952a42dc 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>
@@ -931,6 +932,7 @@ 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);
 
 #ifdef CONFIG_FAULT_INJECTION
 	tsk->fail_nth = 0;
diff --git a/kernel/kthread.c b/kernel/kthread.c
index b262f47046ca..33ca743ca8b5 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -17,6 +17,7 @@
 #include <linux/unistd.h>
 #include <linux/file.h>
 #include <linux/export.h>
+#include <linux/kmsan.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
 #include <linux/freezer.h>
@@ -350,6 +351,7 @@ struct task_struct *__kthread_create_on_node(int (*threadfn)(void *data),
 		set_cpus_allowed_ptr(task, cpu_all_mask);
 	}
 	kfree(create);
+	kmsan_task_create(task);
 	return task;
 }
 
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index ca65327a6de8..c9ef7fb0906f 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -1915,6 +1915,12 @@ int vprintk_store(int facility, int level,
 	 * prefix which might be passed-in as a parameter.
 	 */
 	text_len = vscnprintf(text, sizeof(textbuf), fmt, args);
+	/*
+	 * If any of vscnprintf() arguments is uninitialized, KMSAN will report
+	 * one or more errors and also probably mark text_len as uninitialized.
+	 * Initialize |text_len| to prevent the errors from spreading further.
+	 */
+	text_len = KMSAN_INIT_VALUE(text_len);
 
 	/* mark and strip a trailing newline */
 	if (text_len && text[text_len-1] == '\n') {
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 0427a86743a4..6d566dd68b35 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -11,6 +11,7 @@
 
 #include <linux/export.h>
 #include <linux/kernel_stat.h>
+#include <linux/kmsan.h>
 #include <linux/interrupt.h>
 #include <linux/init.h>
 #include <linux/mm.h>
@@ -370,7 +371,9 @@ static inline void invoke_softirq(void)
 		 * it is the irq stack, because it should be near empty
 		 * at this stage.
 		 */
+		kmsan_softirq_enter();
 		__do_softirq();
+		kmsan_softirq_exit();
 #else
 		/*
 		 * Otherwise, irq_exit() is called on the task stack that can
@@ -600,7 +603,9 @@ static void run_ksoftirqd(unsigned int cpu)
 		 * We can safely run softirq on inline stack, as we are not deep
 		 * in the task stack here.
 		 */
+		kmsan_softirq_enter();
 		__do_softirq();
+		kmsan_softirq_exit();
 		local_irq_enable();
 		cond_resched();
 		return;
diff --git a/lib/ioremap.c b/lib/ioremap.c
index 0a2ffadc6d71..5f830cee5bfc 100644
--- a/lib/ioremap.c
+++ b/lib/ioremap.c
@@ -6,6 +6,7 @@
  *
  * (C) Copyright 1995 1996 Linus Torvalds
  */
+#include <linux/kmsan.h>
 #include <linux/vmalloc.h>
 #include <linux/mm.h>
 #include <linux/sched.h>
@@ -214,6 +215,8 @@ int ioremap_page_range(unsigned long addr,
 	unsigned long start;
 	unsigned long next;
 	int err;
+	unsigned long old_addr = addr;
+	phys_addr_t old_phys_addr = phys_addr;
 
 	might_sleep();
 	BUG_ON(addr >= end);
@@ -228,6 +231,8 @@ int ioremap_page_range(unsigned long addr,
 	} while (pgd++, phys_addr += (next - addr), addr = next, addr != end);
 
 	flush_cache_vmap(start, end);
+	if (!err)
+		kmsan_ioremap_page_range(old_addr, end, old_phys_addr, prot);
 
 	return err;
 }
diff --git a/mm/compaction.c b/mm/compaction.c
index 672d3c78c6ab..720a8a4dafec 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -84,6 +84,15 @@ static void split_map_pages(struct list_head *list)
 
 		for (i = 0; i < nr_pages; i++) {
 			list_add(&page->lru, &tmp_list);
+#ifdef CONFIG_KMSAN
+			/*
+			 * TODO(glider): we may lose the metadata when copying
+			 * something to these pages. Need to allocate shadow
+			 * and origin pages here instead.
+			 */
+			page->shadow = NULL;
+			page->origin = NULL;
+#endif
 			page++;
 		}
 	}
diff --git a/mm/gup.c b/mm/gup.c
index 8f236a335ae9..8f5f99772278 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -4,6 +4,7 @@
 #include <linux/err.h>
 #include <linux/spinlock.h>
 
+#include <linux/kmsan.h>
 #include <linux/mm.h>
 #include <linux/memremap.h>
 #include <linux/pagemap.h>
@@ -2349,6 +2350,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
 	    gup_fast_permitted(start, end)) {
 		local_irq_save(flags);
 		gup_pgd_range(start, end, write ? FOLL_WRITE : 0, pages, &nr);
+		kmsan_gup_pgd_range(pages, nr);
 		local_irq_restore(flags);
 	}
 
@@ -2418,6 +2420,7 @@ int get_user_pages_fast(unsigned long start, int nr_pages,
 	    gup_fast_permitted(start, end)) {
 		local_irq_disable();
 		gup_pgd_range(addr, end, gup_flags, pages, &nr);
+		kmsan_gup_pgd_range(pages, nr);
 		local_irq_enable();
 		ret = nr;
 	}
diff --git a/mm/memory.c b/mm/memory.c
index b1ca51a079f2..48ceacc06e2d 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -51,6 +51,7 @@
 #include <linux/highmem.h>
 #include <linux/pagemap.h>
 #include <linux/memremap.h>
+#include <linux/kmsan.h>
 #include <linux/ksm.h>
 #include <linux/rmap.h>
 #include <linux/export.h>
@@ -2328,6 +2329,7 @@ static vm_fault_t wp_page_copy(struct vm_fault *vmf)
 		if (!new_page)
 			goto oom;
 		cow_user_page(new_page, old_page, vmf->address, vma);
+		kmsan_copy_page_meta(new_page, old_page);
 	}
 
 	if (mem_cgroup_try_charge_delay(new_page, mm, GFP_KERNEL, &memcg, false))
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index ecc3dbad606b..c98e4441c7c0 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -26,6 +26,8 @@
 #include <linux/compiler.h>
 #include <linux/kernel.h>
 #include <linux/kasan.h>
+#include <linux/kmsan.h>
+#include <linux/kmsan-checks.h>
 #include <linux/module.h>
 #include <linux/suspend.h>
 #include <linux/pagevec.h>
@@ -1133,6 +1135,7 @@ static __always_inline bool free_pages_prepare(struct page *page,
 	VM_BUG_ON_PAGE(PageTail(page), page);
 
 	trace_mm_page_free(page, order);
+	kmsan_free_page(page, order);
 
 	/*
 	 * Check tail pages before head page information is cleared to
@@ -3121,6 +3124,7 @@ void split_page(struct page *page, unsigned int order)
 	VM_BUG_ON_PAGE(PageCompound(page), page);
 	VM_BUG_ON_PAGE(!page_count(page), page);
 
+	kmsan_split_page(page, order);
 	for (i = 1; i < (1 << order); i++)
 		set_page_refcounted(page + i);
 	split_page_owner(page, order);
@@ -3253,6 +3257,13 @@ static struct page *rmqueue_pcplist(struct zone *preferred_zone,
 /*
  * Allocate a page from the given zone. Use pcplists for order-0 allocations.
  */
+/*
+ * TODO(glider): rmqueue() may call __msan_poison_alloca() through a call to
+ * set_pfnblock_flags_mask(). If __msan_poison_alloca() attempts to allocate
+ * pages for the stack depot, it may call rmqueue() again, which will result
+ * in a deadlock.
+ */
+__no_sanitize_memory
 static inline
 struct page *rmqueue(struct zone *preferred_zone,
 			struct zone *zone, unsigned int order,
@@ -4781,6 +4792,11 @@ __alloc_pages_nodemask(gfp_t gfp_mask, unsigned int order, int preferred_nid,
 
 	trace_mm_page_alloc(page, order, alloc_mask, ac.migratetype);
 
+	if (page)
+		if (kmsan_alloc_page(page, order, gfp_mask)) {
+			__free_pages(page, order);
+			page = NULL;
+		}
 	return page;
 }
 EXPORT_SYMBOL(__alloc_pages_nodemask);
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index a3c70e275f4e..bdf66ffcf02c 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -29,6 +29,7 @@
 #include <linux/rcupdate.h>
 #include <linux/pfn.h>
 #include <linux/kmemleak.h>
+#include <linux/kmsan.h>
 #include <linux/atomic.h>
 #include <linux/compiler.h>
 #include <linux/llist.h>
@@ -119,7 +120,8 @@ static void vunmap_p4d_range(pgd_t *pgd, unsigned long addr, unsigned long end)
 	} while (p4d++, addr = next, addr != end);
 }
 
-static void vunmap_page_range(unsigned long addr, unsigned long end)
+/* Exported for KMSAN, visible in mm/kmsan/kmsan.h only. */
+void __vunmap_page_range(unsigned long addr, unsigned long end)
 {
 	pgd_t *pgd;
 	unsigned long next;
@@ -133,6 +135,12 @@ static void vunmap_page_range(unsigned long addr, unsigned long end)
 		vunmap_p4d_range(pgd, addr, next);
 	} while (pgd++, addr = next, addr != end);
 }
+EXPORT_SYMBOL(__vunmap_page_range);
+static void vunmap_page_range(unsigned long addr, unsigned long end)
+{
+	kmsan_vunmap_page_range(addr, end);
+	__vunmap_page_range(addr, end);
+}
 
 static int vmap_pte_range(pmd_t *pmd, unsigned long addr,
 		unsigned long end, pgprot_t prot, struct page **pages, int *nr)
@@ -216,8 +224,11 @@ static int vmap_p4d_range(pgd_t *pgd, unsigned long addr,
  * will have pfns corresponding to the "pages" array.
  *
  * Ie. pte at addr+N*PAGE_SIZE shall point to pfn corresponding to pages[N]
+ *
+ * This function is exported for use in KMSAN, but is only declared in KMSAN
+ * headers.
  */
-static int vmap_page_range_noflush(unsigned long start, unsigned long end,
+int __vmap_page_range_noflush(unsigned long start, unsigned long end,
 				   pgprot_t prot, struct page **pages)
 {
 	pgd_t *pgd;
@@ -237,6 +248,14 @@ static int vmap_page_range_noflush(unsigned long start, unsigned long end,
 
 	return nr;
 }
+EXPORT_SYMBOL(__vmap_page_range_noflush);
+
+static int vmap_page_range_noflush(unsigned long start, unsigned long end,
+				   pgprot_t prot, struct page **pages)
+{
+	kmsan_vmap_page_range_noflush(start, end, prot, pages);
+	return __vmap_page_range_noflush(start, end, prot, pages);
+}
 
 static int vmap_page_range(unsigned long start, unsigned long end,
 			   pgprot_t prot, struct page **pages)
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 17bd8f539bc7..fd22c4a4ba42 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -11,6 +11,7 @@
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
+#include <linux/kmsan-checks.h>
 #include <linux/sched.h>
 #include <linux/string.h>
 #include <linux/errno.h>
@@ -659,6 +660,7 @@ static struct sk_buff *pfifo_fast_dequeue(struct Qdisc *qdisc)
 	} else {
 		qdisc->empty = true;
 	}
+	kmsan_check_skb(skb);
 
 	return skb;
 }
-- 
2.24.0.432.g9d3f5f5b63-goog



  parent reply index

Thread overview: 120+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-22 11:25 [PATCH RFC v3 00/36] Add KernelMemorySanitizer infrastructure glider
2019-11-22 11:25 ` [PATCH RFC v3 01/36] stackdepot: check depot_index before accessing the stack slab glider
2019-11-27 14:22   ` Marco Elver
2019-11-22 11:25 ` [PATCH RFC v3 02/36] stackdepot: build with -fno-builtin glider
2019-11-27 14:22   ` Marco Elver
2019-11-22 11:25 ` [PATCH RFC v3 03/36] kasan: stackdepot: move filter_irq_stacks() to stackdepot.c glider
2019-11-27 14:22   ` Marco Elver
2019-11-27 14:56     ` Alexander Potapenko
2019-11-22 11:25 ` [PATCH RFC v3 04/36] stackdepot: reserve 5 extra bits in depot_stack_handle_t glider
2019-11-27 14:23   ` Marco Elver
2019-11-22 11:25 ` [PATCH RFC v3 05/36] kmsan: add ReST documentation glider
2019-11-27 14:22   ` Marco Elver
2019-12-03 12:42     ` Alexander Potapenko
2019-11-22 11:25 ` [PATCH RFC v3 06/36] kmsan: gfp: introduce __GFP_NO_KMSAN_SHADOW glider
2019-11-27 14:48   ` Marco Elver
2019-12-03 12:57     ` Alexander Potapenko
2019-11-22 11:25 ` [PATCH RFC v3 07/36] kmsan: introduce __no_sanitize_memory and __SANITIZE_MEMORY__ glider
2019-11-28 13:13   ` Marco Elver
2019-11-29 16:09   ` Andrey Konovalov
2019-12-16 11:35     ` Alexander Potapenko
2019-11-22 11:25 ` [PATCH RFC v3 08/36] kmsan: reduce vmalloc space glider
2019-11-28 13:30   ` Marco Elver
2019-11-22 11:25 ` [PATCH RFC v3 09/36] kmsan: add KMSAN bits to struct page and struct task_struct glider
2019-11-28 13:44   ` Marco Elver
2019-11-28 14:05     ` Alexander Potapenko
2019-11-22 11:25 ` [PATCH RFC v3 10/36] kmsan: add KMSAN runtime glider
2019-11-24 19:44   ` Wolfram Sang
2019-11-25  9:14     ` Alexander Potapenko
2019-11-29 16:07   ` Marco Elver
2019-12-19 14:16     ` Alexander Potapenko
2019-12-02 15:39   ` Andrey Konovalov
2019-12-20 18:58     ` Alexander Potapenko
2019-12-03 14:34   ` Andrey Konovalov
2019-11-22 11:25 ` [PATCH RFC v3 11/36] kmsan: stackdepot: don't allocate KMSAN metadata for stackdepot glider
2019-11-29 14:52   ` Andrey Konovalov
2019-12-03 14:27     ` Alexander Potapenko
2019-11-22 11:25 ` [PATCH RFC v3 12/36] kmsan: define READ_ONCE_NOCHECK() glider
2019-12-02 10:03   ` Marco Elver
2019-12-03 12:45     ` Alexander Potapenko
2019-11-22 11:25 ` [PATCH RFC v3 13/36] kmsan: make READ_ONCE_TASK_STACK() return initialized values glider
2019-12-02 10:07   ` Marco Elver
2019-12-05 15:52     ` Alexander Potapenko
2019-11-22 11:25 ` [PATCH RFC v3 14/36] kmsan: x86: sync metadata pages on page fault glider
2019-11-22 11:26 ` [PATCH RFC v3 15/36] kmsan: add tests for KMSAN glider
2019-11-29 14:14   ` Andrey Konovalov
2019-12-05 14:30     ` Alexander Potapenko
2019-11-22 11:26 ` [PATCH RFC v3 16/36] crypto: kmsan: disable accelerated configs under KMSAN glider
2019-12-02 13:25   ` Marco Elver
2019-12-05 14:51     ` Alexander Potapenko
2019-11-22 11:26 ` [PATCH RFC v3 17/36] kmsan: x86: disable UNWINDER_ORC " glider
2019-12-02 13:30   ` Marco Elver
2019-11-22 11:26 ` [PATCH RFC v3 18/36] kmsan: disable LOCK_DEBUGGING_SUPPORT glider
2019-12-02 13:33   ` Marco Elver
2019-12-03 14:34     ` Alexander Potapenko
2019-12-03 15:00       ` Qian Cai
2019-12-03 15:14         ` Alexander Potapenko
2019-12-03 18:02           ` Qian Cai
2019-12-03 18:38           ` Steven Rostedt
2019-12-04  8:41             ` Alexander Potapenko
2019-12-04 12:22               ` Petr Mladek
2019-12-04 13:12                 ` Qian Cai
2019-12-04 16:24                   ` Alexander Potapenko
2019-12-04 18:03                     ` Qian Cai
2019-11-22 11:26 ` [PATCH RFC v3 20/36] kmsan: x86: increase stack sizes in KMSAN builds glider
2019-12-02 14:31   ` Marco Elver
2019-11-22 11:26 ` [PATCH RFC v3 21/36] kmsan: disable KMSAN instrumentation for certain kernel parts glider
2019-11-29 15:07   ` Andrey Konovalov
2019-12-10 10:35     ` Alexander Potapenko
2019-12-10 12:38       ` Alexander Potapenko
2019-12-10 12:43       ` Qian Cai
2019-11-22 11:26 ` [PATCH RFC v3 22/36] kmsan: mm: call KMSAN hooks from SLUB code glider
2019-12-02 15:36   ` Marco Elver
2019-12-10 12:07     ` Alexander Potapenko
2019-11-22 11:26 ` glider [this message]
2019-11-26 10:17   ` [PATCH RFC v3 23/36] kmsan: call KMSAN hooks where needed Petr Mladek
2019-11-26 10:52     ` Alexander Potapenko
2019-11-29 16:21   ` Andrey Konovalov
2019-12-16 11:30     ` Alexander Potapenko
2019-11-22 11:26 ` [PATCH RFC v3 24/36] kmsan: disable instrumentation of certain functions glider
2019-11-29 14:59   ` Andrey Konovalov
2019-12-18 10:02     ` Alexander Potapenko
2019-11-22 11:26 ` [PATCH RFC v3 25/36] kmsan: unpoison |tlb| in arch_tlb_gather_mmu() glider
2019-11-29 15:08   ` Andrey Konovalov
2019-12-03 14:19     ` Alexander Potapenko
2019-11-22 11:26 ` [PATCH RFC v3 26/36] kmsan: use __msan_memcpy() where possible glider
2019-11-29 15:13   ` Andrey Konovalov
2019-12-05 15:46     ` Alexander Potapenko
2019-11-22 11:26 ` [PATCH RFC v3 27/36] kmsan: hooks for copy_to_user() and friends glider
2019-11-29 15:34   ` Andrey Konovalov
2019-12-05 16:00     ` Alexander Potapenko
2019-12-05 16:44       ` Andrey Konovalov
2019-12-11 14:22         ` Alexander Potapenko
2019-11-22 11:26 ` [PATCH RFC v3 28/36] kmsan: enable KMSAN builds glider
2019-11-29 15:55   ` Andrey Konovalov
2019-12-11 12:51     ` Alexander Potapenko
2019-11-22 11:26 ` [PATCH RFC v3 29/36] kmsan: handle /dev/[u]random glider
2019-11-22 11:26 ` [PATCH RFC v3 30/36] kmsan: virtio: check/unpoison scatterlist in vring_map_one_sg() glider
2019-11-22 11:26 ` [PATCH RFC v3 31/36] kmsan: disable strscpy() optimization under KMSAN glider
2019-12-02 15:51   ` Marco Elver
2019-12-02 16:23     ` Alexander Potapenko
2019-12-03 11:19       ` Alexander Potapenko
2019-12-03 11:24         ` Marco Elver
2019-12-03 11:27           ` Alexander Potapenko
2019-11-22 11:26 ` [PATCH RFC v3 32/36] kmsan: add iomap support glider
2019-12-03 12:50   ` Marco Elver
2019-12-03 14:07     ` Alexander Potapenko
2019-11-22 11:26 ` [PATCH RFC v3 33/36] kmsan: dma: unpoison memory mapped by dma_direct_map_page() glider
2019-11-22 11:26 ` [PATCH RFC v3 34/36] kmsan: disable physical page merging in biovec glider
2019-12-03 12:54   ` Marco Elver
2019-12-03 13:38     ` Alexander Potapenko
2019-11-22 11:26 ` [PATCH RFC v3 35/36] kmsan: ext4: skip block merging logic in ext4_mpage_readpages for KMSAN glider
2019-11-25 16:05   ` Robin Murphy
2019-11-25 17:03     ` Alexander Potapenko
2019-12-03 14:22   ` Marco Elver
2019-12-05 14:31     ` Alexander Potapenko
2019-11-22 11:26 ` [PATCH RFC v3 36/36] net: kasan: kmsan: support CONFIG_GENERIC_CSUM on x86, enable it for KASAN/KMSAN glider
2019-12-03 14:17   ` Marco Elver
2019-12-05 14:37     ` Alexander Potapenko
2019-11-29 14:39 ` [PATCH RFC v3 00/36] Add KernelMemorySanitizer infrastructure Marco Elver
2019-12-02 16:02   ` Alexander Potapenko

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