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[209.85.167.49]) by smtp.gmail.com with ESMTPSA id 28sm13062652lfy.38.2019.11.20.08.54.20 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 20 Nov 2019 08:54:20 -0800 (PST) Received: by mail-lf1-f49.google.com with SMTP id q28so130808lfp.2 for ; Wed, 20 Nov 2019 08:54:20 -0800 (PST) X-Received: by 2002:ac2:5a08:: with SMTP id q8mr3781555lfn.106.1574268859986; Wed, 20 Nov 2019 08:54:19 -0800 (PST) MIME-Version: 1.0 References: <000000000000bf6bd30575fec528@google.com> <000000000000e2ac670597ad2663@google.com> <14e1a22937ce5a54d94dab04a103e159215fb654.camel@kernel.crashing.org> In-Reply-To: <14e1a22937ce5a54d94dab04a103e159215fb654.camel@kernel.crashing.org> From: Linus Torvalds Date: Wed, 20 Nov 2019 08:54:04 -0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: general protection fault in kernfs_add_one To: Benjamin Herrenschmidt Cc: syzbot , Marcel Holtmann , Johan Hedberg , "David S. Miller" , Greg Kroah-Hartman , Linux Kernel Mailing List , Rafael Wysocki , syzkaller-bugs , Tejun Heo , linux-bluetooth Content-Type: text/plain; charset="UTF-8" Sender: linux-bluetooth-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org On Tue, Nov 19, 2019 at 8:04 PM Benjamin Herrenschmidt wrote: > > Could this be what was fixed by: > > ac43432cb1f5c2950408534987e57c2071e24d8f > ("driver core: Fix use-after-free and double free on glue directory") > > Which went into 5.3 afaik ? Hmm. Sounds very possible. It matches the commit syzbot bisected to, and looking at the reports, the I can't find anything that is 5.3 or later. I did find a 5.3.0-rc2+ report, but that's still consistent with that commit: it got merged just before 5.3-rc4. So I think you're right. I forget what the magic email rule was to report that something is fixed to syzbot.. Linus