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

[Al Viro]

On Fri, May 17, 2024 at 02:13:22AM +0100, Matthew Wilcox wrote:
> 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.

Because they are short on actual bugs to be found by their tooling
and attempt to inflate the sound/noise rate; therefore, every time
when overflow _IS_ handled correctly, it must have been an accident -
we couldn't have possibly done the analysis correctly.  And if somebody
insists that they _are_ capable of basic math, they must be dishonest.
So... "unintentional" it's going to be.

<southpark> Math is hard, mmkay?  </southpark>

Al, more than slightly annoyed by that aspect of the entire thing...