From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 B1918365A05 for ; Tue, 11 Nov 2025 15:30:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762875029; cv=none; b=TaFbj3nGIV0SztYUrvory8KmyLLpgzXI5A4592oTY0NmLpYAoBRb/h1FwTBO/uTlehRVm6oS92Mzs2HD/8hwd8W44q7MS18zR3OBoQ7hDvkWsjKLaBO0VB6rmhNWMks8cas7G5mO9xX6wbmOujY3NAo8376CYH8PBJDHEQWBksU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762875029; c=relaxed/simple; bh=JkOquQXq7D/0AkSwonMEbLe8hcwxVugxIK3xFxSoQps=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=fxMcmEpc4+KAlx4HdJzf5dxgQt3XFui57Am0/r/b5fQtHBpeMW5rzKIjJBlOcYiWVr8/Tzha7dFb4U8YACrMFgDJNJ5M0HlHg+Qs8tX5xGOvrM5Jm7whztCeQZwXGKmOtwgIveYGTTYeH5OM74Mw5Gaz+rQvhu9RSEV9oq7qRMo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dShHYiQt; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="dShHYiQt" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9E53DC113D0; Tue, 11 Nov 2025 15:30:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1762875028; bh=JkOquQXq7D/0AkSwonMEbLe8hcwxVugxIK3xFxSoQps=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=dShHYiQtHGA+ufP4vo5h3F0Xob3mIuE7icZs/Ve89M09D9MuCRNNb+OTZUCX/U92f PGaoyoj4XQ41J8b0VR7zB87qGnrC3UzrRCRX9ft2tsaFiFw6bmVrWguIkk5+XAwcBA +5w0GWz8ntMQS07o7BzHQDmJOWAymQDu27hmN1IxUSkZBgH0p2lFvtyk4mpxuoCheM t7D/F7g5oCcQb+HzyvfxFwglHAqy048nGtxRGiHTuzVX1HR3OnB8aOwJCABUqFJl2O I0fC7CdXp+RAp4WuqUfZHET9vsXmZDtPfRvm1DO7bk4xkHJT+gZs+W81eV5Tm7gcyd X0DCfZmYXXHVw== Date: Tue, 11 Nov 2025 10:30:25 -0500 From: Keith Busch To: Venkat Rao Bagalkote Cc: LKML , linuxppc-dev , Madhavan Srinivasan , riteshh@linux.ibm.com, ojaswin@linux.ibm.com, Stephen Rothwell , hch@lst.de, martin.petersen@oracle.com, Jens Axboe Subject: Re: [linux-next20251111]KASAN null-ptr-deref in bio_get_last_bvec() after "block: accumulate memory segment gaps per bio" Message-ID: References: <3349ddbd-ec27-431b-a5f3-de0137d26a4b@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3349ddbd-ec27-431b-a5f3-de0137d26a4b@linux.ibm.com> On Tue, Nov 11, 2025 at 08:54:39PM +0530, Venkat Rao Bagalkote wrote: > Greetings!!! > > IBM CI has reported a null pointer dereference, while running xfstests. Thanks, this bug was also reported late yesterday and a proposed fix was posted just earlier today: https://lore.kernel.org/linux-block/20251111140620.2606536-1-kbusch@meta.com/