for small objects. The
redzone size is calculated based on the object size.
This is the second part of the "mm: kasan: unified support for SLUB and
SLAB allocators" patch originally prepared by Dmitry Chernenkov.
Signed-off-by: Dmitry Chernenkov <dmit...@google.com>
Signed-off-by: Ale
Add GFP flags to KASAN hooks for future patches to use.
This is the first part of the "mm: kasan: unified support for SLUB and
SLAB allocators" patch originally prepared by Dmitry Chernenkov.
Signed-off-by: Dmitry Chernenkov <dmit...@google.com>
Signed-off-by: Alexande
0/28/2015 07:41 PM, Alexander Potapenko wrote:
>> With this patch kasan can be compiled with both SLAB and SLUB allocators,
>> using minimal dependencies on allocator internal structures and minimum
>> allocator-dependent code.
>>
>> Dependency from SLUB_DEBUG is als
07:39 PM, Alexander Potapenko wrote:
>> Add GFP flags to KASAN hooks for future patches to use.
>
> Really? These flags are still not used in the next patch (unless I missed
> something).
>
>> This is the first part of the "mm: kasan: unified support for SLUB and
>>
;
- refactor the slab freelist hook, put freed memory into the quarantine.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
include/linux/slab.h | 9 ++
include/linux/slub_def.h | 4 +++
lib/Kconfig.kasan| 4 +--
mm/kasan/Makefile| 3 +-
mm/kasan/k
bject_err(cache, page, object, info);
> +#else
> object_err(cache, page, object,
> "kasan: bad access detected");
> +#endif
> return;
> }
> dump_page(page, "ka
;
- refactor the slab freelist hook, put freed memory into the quarantine.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
v2: - incorporated kbuild fixes by Andrew Morton
---
include/linux/slab.h | 9 +
include/linux/slub_def.h | 4 +++
lib/Kconfig.kasan| 4 +
On Thu, Jun 9, 2016 at 4:05 PM, Andrey Ryabinin <aryabi...@virtuozzo.com> wrote:
> On 06/01/2016 07:22 PM, Andrey Ryabinin wrote:
>>
>>
>> On 06/01/2016 03:53 PM, Alexander Potapenko wrote:
>>> To avoid draining the mempools, KASAN shouldn't put the mempool e
> static int __init kmalloc_tests_init(void)
> {
> kmalloc_oob_right();
> @@ -436,6 +479,10 @@ static int __init kmalloc_tests_init(void)
> kasan_global_oob();
> ksize_unpoisons_memory();
> copy_user_test();
> +#ifdef CONFIG_SLAB
> +
On Thu, Jun 9, 2016 at 6:45 PM, Andrey Ryabinin <aryabi...@virtuozzo.com> wrote:
>
>
> On 06/08/2016 09:40 PM, Alexander Potapenko wrote:
>> For KASAN builds:
>> - switch SLUB allocator to using stackdepot instead of storing the
>>allocation/deallocation st
On Tue, Jun 14, 2016 at 7:55 PM, Mark Rutland <mark.rutl...@arm.com> wrote:
> On Tue, Jun 14, 2016 at 06:57:21PM +0200, Alexander Potapenko wrote:
>> Add ARCH_HAS_KCOV to ARM64 config. To avoid crashes, disable
>> instrumentation of the following files:
>>
>> ar
Add ARCH_HAS_KCOV to ARM64 config. To avoid crashes, disable
instrumentation of the following files:
arch/arm64/boot/*
arch/arm64/kvm/hyp/*
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
v2: - disable instrumentation of arch/arm64/{boot,kvm/hyp}
- enable instrumentation o
Hi all,
On Tue, Jun 14, 2016 at 6:57 PM, Alexander Potapenko <gli...@google.com> wrote:
> Add ARCH_HAS_KCOV to ARM64 config. To avoid crashes, disable
> instrumentation of the following files:
>
> arch/arm64/boot/*
> arch/arm64/kvm/hyp/*
>
> Signed-off-by: Alexander P
Add ARCH_HAS_KCOV to ARM64 config. To avoid potential crashes, disable
instrumentation of the files in arch/arm64/kvm/hyp/*.
Signed-off-by: Alexander Potapenko <gli...@google.com>
Acked-by: Mark Rutland <mark.rutl...@arm.com>
---
v3: - reverted arch/arm64/boot/Makefile, the
On Wed, Jun 15, 2016 at 1:44 PM, Mark Rutland <mark.rutl...@arm.com> wrote:
> On Wed, Jun 15, 2016 at 10:25:10AM +0100, Mark Rutland wrote:
>> On Tue, Jun 14, 2016 at 08:16:08PM +0200, Alexander Potapenko wrote:
>> > On Tue, Jun 14, 2016 at 7:55 PM, Mark Rutland <
;
- change the freelist hook so that parts of the freelist can be put into
the quarantine.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
v3: - addressed comments by Andrey Ryabinin:
- replaced KMALLOC_MAX_CACHE_SIZE with KMALLOC_MAX_SIZE in
kasan_cache_
On Thu, Jun 9, 2016 at 8:22 PM, Alexander Potapenko <gli...@google.com> wrote:
> On Thu, Jun 9, 2016 at 6:45 PM, Andrey Ryabinin <aryabi...@virtuozzo.com>
> wrote:
>>
>>
>> On 06/08/2016 09:40 PM, Alexander Potapenko wrote:
>>> For KASAN builds:
>
pr_err("==\n");
> - add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE);
> - spin_unlock_irqrestore(_lock, flags);
> - kasan_enable_current();
> +
> + kasan_end_report();
> +}
> +
> +void kasan_r
ntine
implementation")
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
mm/slab.c | 7 ++-
mm/slub.c | 8 +---
2 files changed, 11 insertions(+), 4 deletions(-)
diff --git a/mm/slab.c b/mm/slab.c
index cc8bbc1..ac6c251 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2703,8 +2703,1
On Fri, May 27, 2016 at 7:30 PM, Christoph Lameter <c...@linux.com> wrote:
> On Fri, 27 May 2016, Alexander Potapenko wrote:
>
>> It's reasonable to rely on the fact that for every page allocated for a
>> kmem_cache the |slab_cache| field points to that cache. Without tha
On Wed, Jun 1, 2016 at 6:31 PM, Alexander Potapenko <gli...@google.com> wrote:
> On Wed, Jun 1, 2016 at 5:23 PM, Andrey Ryabinin <aryabi...@virtuozzo.com>
> wrote:
>> On 05/31/2016 08:49 PM, Alexander Potapenko wrote:
>>> On Tue, May 31, 2016 at 1:5
On Thu, Jun 2, 2016 at 2:17 PM, Andrey Ryabinin <aryabi...@virtuozzo.com> wrote:
>
>
> On 06/02/2016 03:02 PM, Alexander Potapenko wrote:
>> On Wed, Jun 1, 2016 at 6:31 PM, Alexander Potapenko <gli...@google.com>
>> wrote:
>>> On Wed, Jun 1
On Wed, Jun 1, 2016 at 5:23 PM, Andrey Ryabinin <aryabi...@virtuozzo.com> wrote:
> On 05/31/2016 08:49 PM, Alexander Potapenko wrote:
>> On Tue, May 31, 2016 at 1:52 PM, Andrey Ryabinin
>> <aryabi...@virtuozzo.com> wrote:
>>>
>>>
>>> On 05
.
Signed-off-by: Alexander Potapenko <gli...@google.com>
Reported-by: Kuthonuzo Luruo <kuthonuzo.lu...@hpe.com>
---
include/linux/kasan.h | 8 ++--
mm/kasan/kasan.c | 48 +---
mm/mempool.c | 5 +++--
mm/slab.c |
s/ryabinin/aryabinin/
On Wed, Jun 1, 2016 at 5:22 PM, Alexander Potapenko <gli...@google.com> wrote:
> On Wed, Jun 1, 2016 at 5:20 PM, Shuah Khan <shua...@osg.samsung.com> wrote:
>> Change the following memory hot-add error messages to info messages. There
>> is no
WARNING: KASAN doesn't support memory hot-add\n");
> - pr_err("Memory hot-add will be disabled\n");
> + pr_info("WARNING: KASAN doesn't support memory hot-add\n");
> + pr_info("Memory hot-add will be disabled\n");
No objections, but let's wait for
On Tue, May 31, 2016 at 1:52 PM, Andrey Ryabinin
<aryabi...@virtuozzo.com> wrote:
>
>
> On 05/31/2016 01:44 PM, Alexander Potapenko wrote:
>> Add a special shadow value to distinguish accesses to KASAN-specific
>> allocator metadata.
>>
>> Unlike Addres
and induce
crashes later on. Warning about such corruptions will ease the
debugging.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
mm/kasan/kasan.c | 15 +++
mm/kasan/kasan.h | 1 +
mm/kasan/report.c | 3 +++
3 files changed, 19 insertions(+)
diff --git a/mm
On Thu, Jun 9, 2016 at 8:22 PM, Alexander Potapenko <gli...@google.com> wrote:
> On Thu, Jun 9, 2016 at 6:45 PM, Andrey Ryabinin <aryabi...@virtuozzo.com>
> wrote:
>>
>>
>> On 06/08/2016 09:40 PM, Alexander Potapenko wrote:
>>> For KASAN builds:
>
For KASAN builds:
- switch SLUB allocator to using stackdepot instead of storing the
allocation/deallocation stacks in the objects;
- change the freelist hook so that parts of the freelist can be put
into the quarantine.
Signed-off-by: Alexander Potapenko <gli...@google.com>
On Fri, Jun 17, 2016 at 5:12 PM, Andrey Ryabinin
<aryabi...@virtuozzo.com> wrote:
>
>
> On 06/17/2016 05:27 PM, Alexander Potapenko wrote:
>> On Wed, Jun 15, 2016 at 6:50 PM, Andrey Ryabinin
>> <aryabi...@virtuozzo.com> wrote:
>>>
>>>
&g
On Mon, Jun 20, 2016 at 9:50 PM, Sasha Levin <sasha.le...@oracle.com> wrote:
> On 06/20/2016 08:53 AM, Alexander Potapenko wrote:
>> On Sun, Jun 19, 2016 at 7:40 PM, Sasha Levin <sasha.le...@oracle.com> wrote:
>>> > On 06/19/2016 03:24 AM, Alexander
On Sat, Jun 18, 2016 at 5:32 PM, Sasha Levin <sasha.le...@oracle.com> wrote:
> On 06/17/2016 10:27 AM, Alexander Potapenko wrote:
>> For KASAN builds:
>> - switch SLUB allocator to using stackdepot instead of storing the
>>allocation/deallocation stacks i
On Sun, Jun 19, 2016 at 7:40 PM, Sasha Levin <sasha.le...@oracle.com> wrote:
> On 06/19/2016 03:24 AM, Alexander Potapenko wrote:
>> Hi Sasha,
>>
>> This commit delays the reuse of memory after it has been freed, so
>> it's intended to help peopl
On Sun, Jun 19, 2016 at 7:40 PM, Sasha Levin <sasha.le...@oracle.com> wrote:
> On 06/19/2016 03:24 AM, Alexander Potapenko wrote:
>> Hi Sasha,
>>
>> This commit delays the reuse of memory after it has been freed, so
>> it's intended to help peopl
n't support it (e.g. via refcount as one would expect).
> Hopefully the occupied memory doesn't grow indefinitely over time then...
The existing use case (allocation/deallocation stacks for KASAN
reports) doesn't require reference counts. Introducing those would
have added unwanted contention and i
On Thu, Jun 16, 2016 at 12:47 PM, James Morse <james.mo...@arm.com> wrote:
> On 15/06/16 15:25, Mark Rutland wrote:
>> On Wed, Jun 15, 2016 at 01:53:03PM +0200, Alexander Potapenko wrote:
>>> On Wed, Jun 15, 2016 at 1:44 PM, Mark Rutland <mark.rutl...@arm.com> wr
On Thu, Jun 16, 2016 at 6:32 PM, Mark Rutland <mark.rutl...@arm.com> wrote:
> On Thu, Jun 16, 2016 at 05:25:31PM +0100, Catalin Marinas wrote:
>> On Thu, Jun 16, 2016 at 04:44:12PM +0100, Mark Rutland wrote:
>> > On Thu, Jun 16, 2016 at 05:20:03PM +0200, Alexander Potapen
Add ARCH_HAS_KCOV to ARM64 config. To avoid potential crashes, disable
instrumentation of the files in arch/arm64/kvm/hyp/*.
Signed-off-by: Alexander Potapenko <gli...@google.com>
Acked-by: Mark Rutland <mark.rutl...@arm.com>
Acked-by: Marc Zyngier <marc.zyng...@arm.com>
Test
;
- change the freelist hook so that parts of the freelist can be put into
the quarantine.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
v4: - addressed comments by Andrey Ryabinin:
- don't set slub_debug by default for everyone;
- introduce the ___cache_free()
o know when this
>> compiler feature is in use, wee pass the define via KBUILD_CFLAGS rather
>> than CFLAGS_KCOV.
>>
>> Signed-off-by: Mark Rutland <mark.rutl...@arm.com>
>> Cc: Alexander Potapenko <gli...@google.com>
>> Cc: Andrew Morton <a...@linux
On Wed, Jun 15, 2016 at 6:50 PM, Andrey Ryabinin
<aryabi...@virtuozzo.com> wrote:
>
>
> On 06/15/2016 06:26 PM, Alexander Potapenko wrote:
>> For KASAN builds:
>> - switch SLUB allocator to using stackdepot instead of storing the
>>allocation/deallocation st
Agreed. Once I receive more comments I will make a new patch set and
include this change as well.
On Thu, Jan 28, 2016 at 3:53 PM, Steven Rostedt <rost...@goodmis.org> wrote:
> On Wed, 27 Jan 2016 19:25:09 +0100
> Alexander Potapenko <gli...@google.com> wrote:
>
>> -
this file.
*
* Thanks. --rmk
*/
Do we really want to put anything into that header?
On Fri, Jan 29, 2016 at 12:33 PM, Alexander Potapenko <gli...@google.com> wrote:
> Agreed. Once I receive more comments I will make a new patch set and
> include this change as well.
>
> On Thu, Jan 2
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
lib/test_kasan.c | 18 +-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 5498a78..822c804 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -65,7
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
lib/test_kasan.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 66dd92f..5498a78 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -286,6 +286,8 @@ static noinline void
On Thu, Jan 28, 2016 at 1:51 PM, Alexander Potapenko <gli...@google.com> wrote:
>
> On Jan 28, 2016 8:40 AM, "Joonsoo Kim" <iamjoonsoo@lge.com> wrote:
>>
>> Hello,
>>
>> On Wed, Jan 27, 2016 at 07:25:10PM +0100, Alexander Potapenko wrote
On Thu, Jan 28, 2016 at 1:37 PM, Alexander Potapenko <gli...@google.com> wrote:
>
> On Jan 28, 2016 8:44 AM, "Joonsoo Kim" <iamjoonsoo@lge.com> wrote:
>>
>> On Wed, Jan 27, 2016 at 07:25:07PM +0100, Alexander Potapenko wrote:
>> &
support is only enabled in SLAB allocator.
Unification of KASAN features in SLAB and SLUB will be done later.
This patch is based on the "mm: kasan: quarantine" patch originally
prepared by Dmitry Chernenkov.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
include/lin
the dependency on SLUB_DEBUG.
Also neither SLUB nor SLAB delay the reuse of freed memory chunks, which
is necessary for better detection of use-after-free errors. We introduce
memory quarantine (mm/kasan/quarantine.c), which allows delayed reuse of
deallocated memory.
Alexander Potapenko (8):
kasan
kasan: stack depots" patch originally
prepared by Dmitry Chernenkov.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
arch/x86/kernel/Makefile | 1 +
mm/kasan/Makefile| 3 +
mm/kasan/kasan.c | 51 +-
mm/kasan/kasan.h | 11 +++
mm/kasan/repor
Add GFP flags to KASAN hooks for future patches to use.
This patch is based on the "mm: kasan: unified support for SLUB and
SLAB allocators" patch originally prepared by Dmitry Chernenkov.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
include/li
KASAN needs to know whether the allocation happens in an IRQ handler.
This lets us strip everything below the IRQ entry point to reduce the number
of unique stack traces needed to be stored.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
arch/arm/kernel/vmlinux.lds.S
This patch adds KASAN hooks to SLAB allocator.
This patch is based on the "mm: kasan: unified support for SLUB and
SLAB allocators" patch originally prepared by Dmitry Chernenkov.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
Documentation/kasan.txt | 5 ++-
inclu
depending on which allocator (SLAB or SLUB) is being used
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
lib/test_kasan.c | 17 -
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index c32f3b0..66dd92f 100644
---
ator.
>>> + */
>>> +size = KMALLOC_MAX_CACHE_SIZE + 10;
>>> +}
>>
>> This seems a weird way of working out whether we're using SLAB or SLUB.
>>
>> Can't we use, umm, #ifdef CONFIG_SLAB? If not that then let's coo
On Mon, Feb 29, 2016 at 7:28 PM, Alexander Potapenko <gli...@google.com> wrote:
> On Mon, Feb 29, 2016 at 4:10 PM, Andrey Ryabinin <ryabinin@gmail.com>
> wrote:
>>
>>
>> On 02/26/2016 07:48 PM, Alexander Potapenko wrote:
>>> Add KASAN hooks t
On Mon, Feb 29, 2016 at 4:10 PM, Andrey Ryabinin <ryabinin@gmail.com> wrote:
>
>
> On 02/26/2016 07:48 PM, Alexander Potapenko wrote:
>> Add KASAN hooks to SLAB allocator.
>>
>> This patch is based on the "mm: kasan: unified support for SLUB and
>>
Add KASAN hooks to SLAB allocator.
This patch is based on the "mm: kasan: unified support for SLUB and
SLAB allocators" patch originally prepared by Dmitry Chernenkov.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
v3: - minor description changes
- store d
the
__softirq_entry macro which is similar to __irq_entry, but puts the
corresponding functions to the .softirqentry.text section.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
v2: - per request from Steven Rostedt, moved the declarations of __softirq_entry
and __irq_entry to
v3: -
.
This patch is based on the "mm: kasan: stack depots" patch originally
prepared by Dmitry Chernenkov.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
v2: - per request from Joonsoo Kim, moved the stackdepot implementation to
lib/, as there's a plan to use it for page o
support is only enabled in SLAB allocator.
Unification of KASAN features in SLAB and SLUB will be done later.
This patch is based on the "mm: kasan: quarantine" patch originally
prepared by Dmitry Chernenkov.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
v2: - added co
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
lib/test_kasan.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 90ad74f..82169fb 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -294,6 +294,8 @@ static noinline void
not return. This may cause false positive stack buffer overflow
reports from KASAN.
The solution is to record the stack pointer value just before the CPU is
suspended, and unpoison the part of stack between the saved value and
the stack pointer upon resume.
Signed-off-by: Alexander Potapenko <
allows delayed reuse of
deallocated memory.
Alexander Potapenko (7):
kasan: Modify kmalloc_large_oob_right(), add
kmalloc_pagealloc_oob_right()
mm, kasan: SLAB support
mm, kasan: Added GFP flags to KASAN API
arch, ftrace: For KASAN put hard/soft IRQ entries into separate
sections
mm
Add GFP flags to KASAN hooks for future patches to use.
This patch is based on the "mm: kasan: unified support for SLUB and
SLAB allocators" patch originally prepared by Dmitry Chernenkov.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
include/li
-by: Alexander Potapenko <gli...@google.com>
---
v2: - Merged "kasan: Change the behavior of kmalloc_large_oob_right" and
"kasan: Changed kmalloc_large_oob_right, added kmalloc_pagealloc_oob_right"
from v1
v3: - Minor description changes
---
lib/test_kasan.c | 28 +
On Fri, Feb 26, 2016 at 2:53 PM, Mark Rutland <mark.rutl...@arm.com> wrote:
> Hi,
>
> On Fri, Feb 26, 2016 at 01:38:37PM +0100, Alexander Potapenko wrote:
>> Before an ARM64 CPU is suspended, the kernel saves the context which will
>> be used to initialize the regist
support is only enabled in SLAB allocator.
Unification of KASAN features in SLAB and SLUB will be done later.
This patch is based on the "mm: kasan: quarantine" patch originally
prepared by Dmitry Chernenkov.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
v2: - added co
Add GFP flags to KASAN hooks for future patches to use.
This patch is based on the "mm: kasan: unified support for SLUB and
SLAB allocators" patch originally prepared by Dmitry Chernenkov.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
v4: - fix kbuild compilatio
-by: Alexander Potapenko <gli...@google.com>
---
v2: - Merged "kasan: Change the behavior of kmalloc_large_oob_right" and
"kasan: Changed kmalloc_large_oob_right, added kmalloc_pagealloc_oob_right"
from v1
v3: - Minor description changes
---
lib/test_kasan.c | 28 +
allows delayed reuse of
deallocated memory.
Alexander Potapenko (7):
kasan: Modify kmalloc_large_oob_right(), add
kmalloc_pagealloc_oob_right()
mm, kasan: SLAB support
mm, kasan: Added GFP flags to KASAN API
arch, ftrace: For KASAN put hard/soft IRQ entries into separate
sections
mm
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
lib/test_kasan.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 90ad74f..82169fb 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -294,6 +294,8 @@ static noinline void
Add KASAN hooks to SLAB allocator.
This patch is based on the "mm: kasan: unified support for SLUB and
SLAB allocators" patch originally prepared by Dmitry Chernenkov.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
v3: - minor description changes
- store d
.
This patch is based on the "mm: kasan: stack depots" patch originally
prepared by Dmitry Chernenkov.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
v2: - per request from Joonsoo Kim, moved the stackdepot implementation to
lib/, as there's a plan to use it for page o
the
__softirq_entry macro which is similar to __irq_entry, but puts the
corresponding functions to the .softirqentry.text section.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
v2: - per request from Steven Rostedt, moved the declarations of __softirq_entry
and __irq_entry to
v3: -
On Mon, Feb 1, 2016 at 3:55 AM, Joonsoo Kim <iamjoonsoo@lge.com> wrote:
> On Thu, Jan 28, 2016 at 02:27:44PM +0100, Alexander Potapenko wrote:
>> On Thu, Jan 28, 2016 at 1:51 PM, Alexander Potapenko <gli...@google.com>
>> wrote:
>> >
>> > On Ja
On Tue, Feb 16, 2016 at 7:37 PM, Alexander Potapenko <gli...@google.com> wrote:
> On Mon, Feb 1, 2016 at 3:55 AM, Joonsoo Kim <iamjoonsoo@lge.com> wrote:
>> On Thu, Jan 28, 2016 at 02:27:44PM +0100, Alexander Potapenko wrote:
>>> On Thu, Jan 28, 2016 at 1:5
n Thu, Jan 28, 2016 at 02:29:42PM +0100, Alexander Potapenko wrote:
>> On Thu, Jan 28, 2016 at 1:37 PM, Alexander Potapenko <gli...@google.com>
>> wrote:
>> >
>> > On Jan 28, 2016 8:44 AM, "Joonsoo Kim" <iamjoonsoo@lge.com> wrote:
>>
On Mon, Feb 1, 2016 at 3:47 AM, Joonsoo Kim <iamjoonsoo@lge.com> wrote:
> On Wed, Jan 27, 2016 at 07:25:13PM +0100, Alexander Potapenko wrote:
>> Quarantine isolates freed objects in a separate queue. The objects are
>> returned to the allocator later, which helps to
On Thu, Feb 18, 2016 at 9:13 AM, Joonsoo Kim <js1...@gmail.com> wrote:
> 2016-02-18 3:29 GMT+09:00 Alexander Potapenko <gli...@google.com>:
>> On Tue, Feb 16, 2016 at 7:37 PM, Alexander Potapenko <gli...@google.com>
>> wrote:
>>> On Mon, Feb 1, 2016 at 3:
.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
v2: - Merged "kasan: Change the behavior of kmalloc_large_oob_right" and
"kasan: Changed kmalloc_large_oob_right, added kmalloc_pagealloc_oob_right"
from v1
---
lib/test_kasan.c | 28 ++
the dependency on SLUB_DEBUG.
Also neither SLUB nor SLAB delay the reuse of freed memory chunks, which
is necessary for better detection of use-after-free errors. We introduce
memory quarantine (mm/kasan/quarantine.c), which allows delayed reuse of
deallocated memory.
Alexander Potapenko (7):
kasan
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
lib/test_kasan.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 90ad74f..82169fb 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -294,6 +294,8 @@ static noinline void
kasan: stack depots" patch originally
prepared by Dmitry Chernenkov.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
v2: - per request from Joonsoo Kim, moved the stackdepot implementation to
lib/, as there's a plan to use it for page owner
- added copyright comments
introduces
the __softirq_entry macro which is similar to __irq_entry, but puts the
corresponding functions to the .softirqentry.text section.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
v2: - per request from Steven Rostedt, moved the declarations of __softirq_entry
and __irq
support is only enabled in SLAB allocator.
Unification of KASAN features in SLAB and SLUB will be done later.
This patch is based on the "mm: kasan: quarantine" patch originally
prepared by Dmitry Chernenkov.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
v2: - added co
Add GFP flags to KASAN hooks for future patches to use.
This patch is based on the "mm: kasan: unified support for SLUB and
SLAB allocators" patch originally prepared by Dmitry Chernenkov.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
include/li
This patch adds KASAN hooks to SLAB allocator.
This patch is based on the "mm: kasan: unified support for SLUB and
SLAB allocators" patch originally prepared by Dmitry Chernenkov.
Signed-off-by: Alexander Potapenko <gli...@google.com>
---
Documentation/kasan.txt | 5 ++-
inclu
a lot of memory.
On Thu, Feb 18, 2016 at 6:32 PM, Christoph Lameter <c...@linux.com> wrote:
> On Thu, 18 Feb 2016, Alexander Potapenko wrote:
>
>> Unlike SLUB, SLAB doesn't store allocation/deallocation stacks for heap
>> objects, therefore we reimplement this feature
;> On Thu, Jan 28, 2016 at 02:29:42PM +0100, Alexander Potapenko wrote:
>>>> On Thu, Jan 28, 2016 at 1:37 PM, Alexander Potapenko <gli...@google.com>
>>>> wrote:
>>>> >
>>>> > On Jan 28, 2016 8:44 AM, "Joonsoo Kim" <i
in both SLAB and SLUB modes.
I'll send the updated patch set later today.
On Tue, Feb 2, 2016 at 5:25 PM, Alexander Potapenko <gli...@google.com> wrote:
> The intention was to detect the situation in which a new allocator
> appears for which we don't know how it behaves if we allocate
Ok, interrupt.h sounds good.
On Fri, Jan 29, 2016 at 3:45 PM, Steven Rostedt <rost...@goodmis.org> wrote:
> On Fri, 29 Jan 2016 12:59:13 +0100
> Alexander Potapenko <gli...@google.com> wrote:
>
>> On the other hand, this will require including into
>>
On Wed, Mar 9, 2016 at 9:21 PM, Andrew Morton <a...@linux-foundation.org> wrote:
> On Wed, 9 Mar 2016 12:05:48 +0100 Alexander Potapenko <gli...@google.com>
> wrote:
>
>> Quarantine isolates freed objects in a separate queue. The objects are
>> returned to
On Wed, Mar 9, 2016 at 9:09 PM, Andrew Morton <a...@linux-foundation.org> wrote:
> On Wed, 9 Mar 2016 12:05:46 +0100 Alexander Potapenko <gli...@google.com>
> wrote:
>
>> Implement the stack depot and provide CONFIG_STACKDEPOT.
>> Stack depot will allow KASAN st
On Tue, Mar 15, 2016 at 1:22 PM, Andrey Ryabinin <ryabinin@gmail.com> wrote:
> 2016-03-15 12:27 GMT+03:00 Alexander Potapenko <gli...@google.com>:
>> On Mon, Mar 14, 2016 at 5:56 PM, Andrey Ryabinin <ryabinin@gmail.com>
>> wrote:
>>> 2016-03-1
On Thu, Mar 10, 2016 at 9:14 PM, Andrew Morton
<a...@linux-foundation.org> wrote:
> On Thu, 10 Mar 2016 14:50:56 +0100 Alexander Potapenko <gli...@google.com>
> wrote:
>
>> On Wed, Mar 9, 2016 at 9:21 PM, Andrew Morton <a...@linux-foundation.org>
>> wrote:
allows delayed reuse of
deallocated memory.
Alexander Potapenko (7):
kasan: Modify kmalloc_large_oob_right(), add
kmalloc_pagealloc_oob_right()
mm, kasan: SLAB support
mm, kasan: Added GFP flags to KASAN API
arch, ftrace: For KASAN put hard/soft IRQ entries into separate
sections
mm
-by: Alexander Potapenko <gli...@google.com>
---
v2: - Merged "kasan: Change the behavior of kmalloc_large_oob_right" and
"kasan: Changed kmalloc_large_oob_right, added kmalloc_pagealloc_oob_right"
from v1
v3: - Minor description changes
---
lib/test_kasan.c | 28 +
the
__softirq_entry macro which is similar to __irq_entry, but puts the
corresponding functions to the .softirqentry.text section.
Signed-off-by: Alexander Potapenko <gli...@google.com>
Acked-by: Steven Rostedt <rost...@goodmis.org>
---
v2: - per request from Steven Rostedt, moved the
1 - 100 of 1004 matches
Mail list logo
