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Groups > linux.kernel > #1616361

Re: [PATCH] mm: Add additional consistency check

From Michal Hocko <mhocko@kernel.org>
Newsgroups linux.kernel
Subject Re: [PATCH] mm: Add additional consistency check
Date 2017-04-04 21:50 +0200
Message-ID <tsCCK-RD-15@gated-at.bofh.it> (permalink)
References <tr7Um-76y-13@gated-at.bofh.it> <tsuYy-4fH-13@gated-at.bofh.it> <tsyfM-6vk-23@gated-at.bofh.it> <tsypr-6A1-1@gated-at.bofh.it> <tsC9I-G4-3@gated-at.bofh.it>
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On Tue 04-04-17 14:13:06, Cristopher Lameter wrote:
> On Tue, 4 Apr 2017, Michal Hocko wrote:
> 
> > Yes, but we do not have to blow the kernel, right? Why cannot we simply
> > leak that memory?
> 
> Because it is a serious bug to attempt to free a non slab object using
> slab operations. This is often the result of memory corruption, coding
> errs etc. The system needs to stop right there.

Why when an alternative is a memory leak?

-- 
Michal Hocko
SUSE Labs

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Thread

[PATCH] mm: Add additional consistency check Kees Cook <keescook@chromium.org> - 2017-03-31 18:50 +0200
  Re: [PATCH] mm: Add additional consistency check Andrew Morton <akpm@linux-foundation.org> - 2017-03-31 23:40 +0200
    Re: [PATCH] mm: Add additional consistency check Kees Cook <keescook@chromium.org> - 2017-04-01 02:10 +0200
      Re: [PATCH] mm: Add additional consistency check Michael Ellerman <mpe@ellerman.id.au> - 2017-04-03 05:50 +0200
        Re: [PATCH] mm: Add additional consistency check Christoph Lameter <cl@linux.com> - 2017-04-03 16:20 +0200
          Re: [PATCH] mm: Add additional consistency check Matthew Wilcox <willy@infradead.org> - 2017-04-03 17:00 +0200
  Re: [PATCH] mm: Add additional consistency check Michal Hocko <mhocko@kernel.org> - 2017-04-04 13:40 +0200
    Re: [PATCH] mm: Add additional consistency check Christoph Lameter <cl@linux.com> - 2017-04-04 17:10 +0200
      Re: [PATCH] mm: Add additional consistency check Michal Hocko <mhocko@kernel.org> - 2017-04-04 17:20 +0200
        Re: [PATCH] mm: Add additional consistency check Kees Cook <keescook@chromium.org> - 2017-04-04 17:50 +0200
          Re: [PATCH] mm: Add additional consistency check Michal Hocko <mhocko@kernel.org> - 2017-04-04 18:00 +0200
            Re: [PATCH] mm: Add additional consistency check Kees Cook <keescook@chromium.org> - 2017-04-04 18:10 +0200
        Re: [PATCH] mm: Add additional consistency check Christoph Lameter <cl@linux.com> - 2017-04-04 21:20 +0200
          Re: [PATCH] mm: Add additional consistency check Michal Hocko <mhocko@kernel.org> - 2017-04-04 21:50 +0200
            Re: [PATCH] mm: Add additional consistency check Christoph Lameter <cl@linux.com> - 2017-04-04 22:00 +0200
              Re: [PATCH] mm: Add additional consistency check Michal Hocko <mhocko@kernel.org> - 2017-04-04 22:20 +0200

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