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Date: Thu, 15 Feb 2018 11:11:37 -0800
From: Eric Biggers <ebiggers3@gmail.com>
To: stable@vger.kernel.org,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
        Dmitry Vyukov <dvyukov@google.com>,
        Vegard Nossum <vegard.nossum@gmail.com>,
        Al Viro <viro@zeniv.linux.org.uk>
Subject: Apply "vfs: don't do RCU lookup of empty pathnames" to stable
Message-ID: <20180215191137.GA197331@gmail.com>
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Hi Greg, here's another one.  When you have a chance can you please apply commit
c0eb027e5aef ("vfs: don't do RCU lookup of empty pathnames") to the stable
trees?  I can reproduce the use-after-free on 4.4-stable and 4.9-stable, and it
is fixed by the patch.  And I wasn't able to check 3.18 because KASAN isn't
available there, but I think the bug there as well.  Thanks,

Eric