* [PATCH 0/2] fix the missing underflow in memory operation function
@ 2019-10-14 10:31 Walter Wu
2019-10-14 10:36 ` Dmitry Vyukov
0 siblings, 1 reply; 3+ messages in thread
From: Walter Wu @ 2019-10-14 10:31 UTC (permalink / raw)
To: Andrey Ryabinin, Alexander Potapenko, Dmitry Vyukov, Matthias Brugger
Cc: kasan-dev, linux-mm, linux-kernel, linux-arm-kernel,
linux-mediatek, wsd_upstream, Walter Wu
The patchsets help to produce KASAN report when size is negative numbers
in memory operation function. It is helpful for programmer to solve the
undefined behavior issue. Patch 1 based on Dmitry's review and
suggestion, patch 2 is a test in order to verify the patch 1.
[1]https://bugzilla.kernel.org/show_bug.cgi?id=199341
[2]https://lore.kernel.org/linux-arm-kernel/20190927034338.15813-1-walter-zh.wu@mediatek.com/
Walter Wu (2):
kasan: detect negative size in memory operation function
kasan: add test for invalid size in memmove
---
lib/test_kasan.c | 18 ++++++++++++++++++
mm/kasan/common.c | 13 ++++++++-----
mm/kasan/generic.c | 5 +++++
mm/kasan/generic_report.c | 18 ++++++++++++++++++
mm/kasan/tags.c | 5 +++++
mm/kasan/tags_report.c | 17 +++++++++++++++++
6 files changed, 71 insertions(+), 5 deletions(-)
--
2.18.0
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH 0/2] fix the missing underflow in memory operation function
2019-10-14 10:31 [PATCH 0/2] fix the missing underflow in memory operation function Walter Wu
@ 2019-10-14 10:36 ` Dmitry Vyukov
2019-10-14 10:37 ` Dmitry Vyukov
0 siblings, 1 reply; 3+ messages in thread
From: Dmitry Vyukov @ 2019-10-14 10:36 UTC (permalink / raw)
To: Walter Wu
Cc: Andrey Ryabinin, Alexander Potapenko, Matthias Brugger,
kasan-dev, Linux-MM, LKML, Linux ARM, linux-mediatek,
wsd_upstream
On Mon, Oct 14, 2019 at 12:32 PM Walter Wu <walter-zh.wu@mediatek.com> wrote:
>
> The patchsets help to produce KASAN report when size is negative numbers
> in memory operation function. It is helpful for programmer to solve the
> undefined behavior issue. Patch 1 based on Dmitry's review and
> suggestion, patch 2 is a test in order to verify the patch 1.
Hi Walter,
I only received this cover letter, but not the actual patches. I also
don't see them in the group:
https://groups.google.com/forum/#!forum/kasan-dev
nor on internet. Have you mailed them? Where are they?
> [1]https://bugzilla.kernel.org/show_bug.cgi?id=199341
> [2]https://lore.kernel.org/linux-arm-kernel/20190927034338.15813-1-walter-zh.wu@mediatek.com/
>
> Walter Wu (2):
> kasan: detect negative size in memory operation function
> kasan: add test for invalid size in memmove
>
> ---
> lib/test_kasan.c | 18 ++++++++++++++++++
> mm/kasan/common.c | 13 ++++++++-----
> mm/kasan/generic.c | 5 +++++
> mm/kasan/generic_report.c | 18 ++++++++++++++++++
> mm/kasan/tags.c | 5 +++++
> mm/kasan/tags_report.c | 17 +++++++++++++++++
> 6 files changed, 71 insertions(+), 5 deletions(-)
>
> --
> 2.18.0
>
> --
> You received this message because you are subscribed to the Google Groups "kasan-dev" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to kasan-dev+unsubscribe@googlegroups.com.
> To view this discussion on the web visit https://groups.google.com/d/msgid/kasan-dev/20191014103148.17816-1-walter-zh.wu%40mediatek.com.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH 0/2] fix the missing underflow in memory operation function
2019-10-14 10:36 ` Dmitry Vyukov
@ 2019-10-14 10:37 ` Dmitry Vyukov
0 siblings, 0 replies; 3+ messages in thread
From: Dmitry Vyukov @ 2019-10-14 10:37 UTC (permalink / raw)
To: Walter Wu
Cc: Andrey Ryabinin, Alexander Potapenko, Matthias Brugger,
kasan-dev, Linux-MM, LKML, Linux ARM, linux-mediatek,
wsd_upstream
On Mon, Oct 14, 2019 at 12:36 PM Dmitry Vyukov <dvyukov@google.com> wrote:
>
> On Mon, Oct 14, 2019 at 12:32 PM Walter Wu <walter-zh.wu@mediatek.com> wrote:
> >
> > The patchsets help to produce KASAN report when size is negative numbers
> > in memory operation function. It is helpful for programmer to solve the
> > undefined behavior issue. Patch 1 based on Dmitry's review and
> > suggestion, patch 2 is a test in order to verify the patch 1.
>
> Hi Walter,
>
> I only received this cover letter, but not the actual patches. I also
> don't see them in the group:
> https://groups.google.com/forum/#!forum/kasan-dev
> nor on internet. Have you mailed them? Where are they?
OK, received them just now.
> > [1]https://bugzilla.kernel.org/show_bug.cgi?id=199341
> > [2]https://lore.kernel.org/linux-arm-kernel/20190927034338.15813-1-walter-zh.wu@mediatek.com/
> >
> > Walter Wu (2):
> > kasan: detect negative size in memory operation function
> > kasan: add test for invalid size in memmove
> >
> > ---
> > lib/test_kasan.c | 18 ++++++++++++++++++
> > mm/kasan/common.c | 13 ++++++++-----
> > mm/kasan/generic.c | 5 +++++
> > mm/kasan/generic_report.c | 18 ++++++++++++++++++
> > mm/kasan/tags.c | 5 +++++
> > mm/kasan/tags_report.c | 17 +++++++++++++++++
> > 6 files changed, 71 insertions(+), 5 deletions(-)
> >
> > --
> > 2.18.0
> >
> > --
> > You received this message because you are subscribed to the Google Groups "kasan-dev" group.
> > To unsubscribe from this group and stop receiving emails from it, send an email to kasan-dev+unsubscribe@googlegroups.com.
> > To view this discussion on the web visit https://groups.google.com/d/msgid/kasan-dev/20191014103148.17816-1-walter-zh.wu%40mediatek.com.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2019-10-14 10:36 ` Dmitry Vyukov
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