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Groups > linux.kernel > #1676711

Re: [PATCH] thp, mm: Fix crash due race in MADV_FREE handling

From Dave Hansen <dave.hansen@intel.com>
Newsgroups linux.kernel
Subject Re: [PATCH] thp, mm: Fix crash due race in MADV_FREE handling
Date 2017-06-28 16:30 +0200
Message-ID <tXm8F-7TU-11@gated-at.bofh.it> (permalink)
References <tXieK-5vN-29@gated-at.bofh.it>
Organization linux.* mail to news gateway

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I came up with the exact same patch.  For posterity, here's the test
case, generated by syzkaller and trimmed down by Reinette:

	https://www.sr71.net/~dave/intel/log2.c

And the config that helps detect this:

	https://www.sr71.net/~dave/intel/config-log2

Acked-by: Dave Hansen <dave.hansen@intel.com>

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Thread

[PATCH] thp, mm: Fix crash due race in MADV_FREE handling "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> - 2017-06-28 12:20 +0200
  Re: [PATCH] thp, mm: Fix crash due race in MADV_FREE handling "Kirill A. Shutemov" <kirill@shutemov.name> - 2017-06-28 12:30 +0200
    Re: [PATCH] thp, mm: Fix crash due race in MADV_FREE handling Minchan Kim <minchan@kernel.org> - 2017-06-29 10:50 +0200
    Re: [PATCH] thp, mm: Fix crash due race in MADV_FREE handling Andrew Morton <akpm@linux-foundation.org> - 2017-06-29 23:00 +0200
      Re: [PATCH] thp, mm: Fix crash due race in MADV_FREE handling "Kirill A. Shutemov" <kirill@shutemov.name> - 2017-06-30 05:40 +0200
  Re: [PATCH] thp, mm: Fix crash due race in MADV_FREE handling Dave Hansen <dave.hansen@intel.com> - 2017-06-28 16:30 +0200
  Re: [PATCH] thp, mm: Fix crash due race in MADV_FREE handling Michal Hocko <mhocko@kernel.org> - 2017-06-29 17:50 +0200

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