From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4E2BB55897 for ; Fri, 20 Sep 2024 07:56:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726818969; cv=none; b=p/KK9VNXDghd2ToYmLVbNpBVDZ03GIks/8Uox1QLv2L3Xnp2Zh69iTc0wQpQTCXHDcFIp/FwDA9QyZVQu6kRg3kdSh9OEZzNC430p00Gcj/Aw4icMlgb6+o7SvktBXXp+jmrG+0bwBp/CsOHAajdg79h8FBoGHtCUshkkWdcQyw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726818969; c=relaxed/simple; bh=C7IDua6EawjdEcIJaE7LTAA+4As55cS6y6AK6voJ8s8=; h=From:In-Reply-To:References:To:Cc:Subject:MIME-Version: Content-Type:Date:Message-ID; b=U0Q/c7G33LiMloWfUhOm2J98gDt1TQnyTN+J1rMS+ndtCcxA+SXOPWWhQLtFsZgY7syhk9wylT2i9YNEewW3kGlU4fv+VlgaYV0G2SIkd2jZc7/yg74NZGy0164vWaootk6rDgwFXtLoyjobMgoJX0xe5ODEhJP8sl8HpB1ezbg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=EkD6VF9n; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="EkD6VF9n" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1726818966; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=t+vleRJLK4k0OA6401hU7KovWoC/9SiI6aj+djeXR6g=; b=EkD6VF9nm/6/l5SMpYcq/h0ErbEV3zfaUuLeovVyY+KdZT3Ugo/Pn7sxJB9xFEfn4paf99 ti9CuQ3M7dCP1wKetC3Wa8QgenXmpSEH6B5MHAAEVEo98GaKlkYlSWAohA7zCL4KKWZY+n xFebLy1WpbaYg14Ep+TN4/7cOZUVF98= Received: from mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-686-EJRZRXN7NvG8DCM7XRUOfQ-1; Fri, 20 Sep 2024 03:56:03 -0400 X-MC-Unique: EJRZRXN7NvG8DCM7XRUOfQ-1 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (unknown [10.30.177.17]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 7244219792DD; Fri, 20 Sep 2024 07:56:01 +0000 (UTC) Received: from warthog.procyon.org.uk (unknown [10.42.28.145]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 8CEA11956052; Fri, 20 Sep 2024 07:55:58 +0000 (UTC) Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. 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 Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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 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