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Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: References: <2362635.1726655653@warthog.procyon.org.uk> <202409131438.3f225fbf-oliver.sang@intel.com> <1263138.1726214359@warthog.procyon.org.uk> <20240913-felsen-nervig-7ea082a2702c@brauner> <2364479.1726658868@warthog.procyon.org.uk> <2537824.1726730090@warthog.procyon.org.uk> To: Oliver Sang Cc: dhowells@redhat.com, Christian Brauner , Steve French , oe-lkp@lists.linux.dev, lkp@intel.com, Linux Memory Management List , Jeff Layton , netfs@lists.linux.dev, linux-fsdevel@vger.kernel.org Subject: Re: [linux-next:master] [netfs] a05b682d49: BUG:KASAN:slab-use-after-free_in_copy_from_iter MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <137582.1726818957.1@warthog.procyon.org.uk> Date: Fri, 20 Sep 2024 08:55:57 +0100 Message-ID: <137583.1726818957@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 X-Rspam-User: X-Stat-Signature: hyqyqpxadxgtx7idn5t7t1ccpbj85ksh X-Rspamd-Queue-Id: 3B47BC000C X-Rspamd-Server: rspam02 X-HE-Tag: 1726818967-683824 X-HE-Meta: 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 +QjAQxsP 6qxF7XIKkfHE5YlSfD3wjLKcDr7IyNuH7C0AUcKo1MAOsEUvzvYCcx5fb+3cv/sGUkyJ3+iR0rPeqqtD3qlQn8/9GLoYdtHCPpgonq7XGGmbIwTi0I34QMHK9t3jd0p0zEvKhbxeY0KRfFHF3+s+uks5ACFgppSuvvmp/0vqZOtQ+RAy8k/35FMvSvoPt+gCj5ToOPE5kPu2gzriee5CZ5DgKqqaFeTVuezIo88OasN3p0lW9Q4D5gtBozkDqDgvt8kvhX7VixXB8cqyvSSP5UR6PKE9psTVT8Ju565t7zwqyHQQMZ7d4ic/CG8QaTcjdmpILdCrhtVYetstzJl9EaW9h196g4MSagEiw5pKBv3hh2hP7KEKTYHkfVw== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Oliver Sang wrote: > have you enable the samba with a /fs path? such like: Ahhh! That's what you're doing! > > > > Can you tell me SMB server you're using? Samba, ksmbd, Windows, > > > > Azure? I'm guessing one of the first two. > > > > > > we actually use local mount to simulate smb. I attached an output for > > > details. I was misled by your answer here. Okay, thanks. It doesn't help, unfortunately. I think my test machine isn't oomphy enough to trigger the race, but I know someone else at RH who can reproduce it, so I can work through them. David