linux-hardening - Re: [PATCH v1 0/2] mremap refactor: check src address for vma boundaries first.

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Message-ID: <ZsG+yfTDCQSd1Lh7@xsang-OptiPlex-9020>
Date: Sun, 18 Aug 2024 17:28:41 +0800
From: Oliver Sang <oliver.sang@...el.com>
To: Jeff Xu <jeffxu@...gle.com>
CC: Jeff Xu <jeffxu@...omium.org>, <akpm@...ux-foundation.org>,
	<willy@...radead.org>, <torvalds@...ux-foundation.org>,
	<Liam.Howlett@...cle.com>, <pedro.falcato@...il.com>,
	<linux-kernel@...r.kernel.org>, <linux-kselftest@...r.kernel.org>,
	<linux-mm@...ck.org>, <linux-hardening@...r.kernel.org>,
	<lorenzo.stoakes@...cle.com>, <mpe@...erman.id.au>, <vbabka@...e.cz>,
	<keescook@...omium.org>, <oliver.sang@...el.com>
Subject: Re: [PATCH v1 0/2] mremap refactor: check src address for vma
 boundaries first.

hi, Jeff,

On Thu, Aug 15, 2024 at 07:58:57PM -0700, Jeff Xu wrote:
> Hi Oliver

[...]

> > could you exlictly point to two commit-id?
> sure
> 
> this patch
> 8be7258a: mseal: add mseal syscall
> ff388fe5c: mseal: wire up mseal syscall

I failed to apply this patch set to "8be7258a: mseal: add mseal syscall"

to avoid the impact of other changes, better to apply the patch upon 8be7258a
directly.

if you prefer other base for this patch, please let us know. then we will
supply the results for 4 commits in fact:

this patch
the base of this patch
8be7258a: mseal: add mseal syscall
ff388fe5c: mseal: wire up mseal syscall

> 
> > >
> > > Thank you for your time and assistance in helping me on understanding
> > > this issue.
> >
> > due to resource constraint, please expect that we need several days to finish
> > this test request.
> No problem.
> 
> Thanks for your help!
> -Jeff
> 
> > >
> > > Best regards,
> > > -Jeff
> > >
> > > > -Jeff
> > > >
> > > > > [1] https://lore.kernel.org/lkml/202408041602.caa0372-oliver.sang@intel.com/
> > > > > [2] https://github.com/peaktocreek/mmperf/blob/main/run_stress_ng.c
> > > > >
> > > > >
> > > > > Jeff Xu (2):
> > > > >   mseal:selftest mremap across VMA boundaries.
> > > > >   mseal: refactor mremap to remove can_modify_mm
> > > > >
> > > > >  mm/internal.h                           |  24 ++
> > > > >  mm/mremap.c                             |  77 +++----
> > > > >  mm/mseal.c                              |  17 --
> > > > >  tools/testing/selftests/mm/mseal_test.c | 293 +++++++++++++++++++++++-
> > > > >  4 files changed, 353 insertions(+), 58 deletions(-)
> > > > >
> > > > > --
> > > > > 2.46.0.76.ge559c4bf1a-goog
> > > > >