linux-kernel - Re: [PATCH v3] fs: fix unintentional arithmetic wraparound in offset calculation

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Message-ID: <ZkavMgtP2IQFGCoQ@casper.infradead.org>
Date: Fri, 17 May 2024 02:13:22 +0100
From: Matthew Wilcox <willy@...radead.org>
To: Justin Stitt <justinstitt@...gle.com>
Cc: Christian Brauner <brauner@...nel.org>, Jan Kara <jack@...e.cz>,
	Nick Desaulniers <ndesaulniers@...gle.com>,
	Nathan Chancellor <nathan@...nel.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Bill Wendling <morbo@...gle.com>, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, llvm@...ts.linux.dev,
	linux-hardening@...r.kernel.org
Subject: Re: [PATCH v3] fs: fix unintentional arithmetic wraparound in offset
 calculation

On Fri, May 17, 2024 at 12:29:06AM +0000, Justin Stitt wrote:
> When running syzkaller with the newly reintroduced signed integer
> overflow sanitizer we encounter this report:

why do you keep saying it's unintentional?  it's clearly intended.