linux-kernel - Re: 5.9-rc7 null ptr deref in __i915_gem_userptr_get_pages

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Message-ID: <CAHmME9ppPhLLtS4Vd5g-Yz9dZUUc7V_yjA8qOkYs4HsnGWtpcQ@mail.gmail.com>
Date:   Mon, 28 Sep 2020 12:22:42 +0200
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     Jason Gunthorpe <jgg@...pe.ca>, Peter Xu <peterx@...hat.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     intel-gfx@...ts.freedesktop.org,
        "open list:DRM DRIVERS" <dri-devel@...ts.freedesktop.org>,
        open list <linux-kernel@...r.kernel.org>,
        Chris Wilson <chris@...is-wilson.co.uk>,
        Linux-MM <linux-mm@...ck.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: 5.9-rc7 null ptr deref in __i915_gem_userptr_get_pages_worker

Oh, this is just a copy and paste error, when the code was originally
pasted from internal_get_user_pages_fast, which assumes a current.
I'll fix this up and send a patch shortly.