linux-kernel - Re: KASAN: null-ptr-deref Write in binder_update_page

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Message-ID: <20180823100334.GA17523@dragonet>
Date:   Thu, 23 Aug 2018 19:03:34 +0900
From:   "Dae R. Jeong" <threeearcat@...il.com>
To:     Minchan Kim <minchan@...nel.org>
Cc:     gregkh@...uxfoundation.org, arve@...roid.com, tkjos@...roid.com,
        maco@...roid.com, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: Re: KASAN: null-ptr-deref Write in binder_update_page_range

> Could you test this patch? I found that bug a month ago but didn't submit
> yet.

I don't have a reproducer now. I manually analzed a root cause of the
crash using a fuzzer's log. The log reported a race on 'alloc->vma'.
Because I don't have a reproducer, I can't test the patch. I'm sorry.