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[209.85.167.51]) by smtp.gmail.com with ESMTPSA id i29sm622137lfc.193.2021.01.14.10.37.46 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 14 Jan 2021 10:37:46 -0800 (PST) Received: by mail-lf1-f51.google.com with SMTP id o17so9477754lfg.4 for ; Thu, 14 Jan 2021 10:37:46 -0800 (PST) X-Received: by 2002:a05:6512:2287:: with SMTP id f7mr3646053lfu.40.1610649465741; Thu, 14 Jan 2021 10:37:45 -0800 (PST) MIME-Version: 1.0 References: <20210108154230.GB950@1wt.eu> <20210111193655.GC2600@fieldses.org> <20210112153208.GF9248@fieldses.org> <8296b696a7fa5591ad3fbb05bfcf6bdf6175cc38.camel@hammerspace.com> <96aea58bde3fe4c09cccd9ead2a1c85eb887d276.camel@hammerspace.com> <74269493859fa65a7f594dadd5d86c74bd910e66.camel@hammerspace.com> <20210114180758.GB3914@fieldses.org> <7E14D32D-1B39-4DB1-AE39-B8B34655DC7D@oracle.com> In-Reply-To: <7E14D32D-1B39-4DB1-AE39-B8B34655DC7D@oracle.com> From: Linus Torvalds Date: Thu, 14 Jan 2021 10:37:29 -0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: nfsd vurlerability submit To: Chuck Lever Cc: Bruce Fields , Trond Myklebust , Linux NFS Mailing List Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org On Thu, Jan 14, 2021 at 10:35 AM Chuck Lever wrote: > > If I understand your question correctly... there is a commit in > linux-next that simply doesn't return any filehandle for ".." > in the root directory. Great. > I intend to send you a PR after a few more days of soak time, > unless you'd like me to send it now. No, no hurry. I was more just checking that Trond's suggestion didn't get lost in the discussion about guessing file handles. Linus