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Date: Fri, 10 May 2024 11:40:33 +0100
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Justin Stitt <justinstitt@google.com>
Cc: Jiri Slaby <jirislaby@kernel.org>,
	Nathan Chancellor <nathan@kernel.org>,
	Bill Wendling <morbo@google.com>, linux-kernel@vger.kernel.org,
	linux-serial@vger.kernel.org, llvm@lists.linux.dev
Subject: Re: [PATCH] tty: vt: saturate scrollback_delta to avoid overflow
Message-ID: <2024051039-bankable-liking-e836@gregkh>
References: <20240506-b4-sio-scrollback-delta-v1-1-4164d162a2b8@google.com>
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In-Reply-To: <20240506-b4-sio-scrollback-delta-v1-1-4164d162a2b8@google.com>

On Mon, May 06, 2024 at 06:55:19PM +0000, Justin Stitt wrote:
> Using the signed overflow sanitizer with syzkaller produces this UBSAN
> report:

<snip>

I think you might want to hold off on these until the discussion on the
hardening list about overflows all settles down to a solid resolution.
Right now these all seem to be a mess and perhaps you will have a better
set of primitives to work with once that thread is finished.

thanks,

greg k-h