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Message-Id: <169601489954.3012131.16051231116010521718.b4-ty@chromium.org> Date: Fri, 29 Sep 2023 12:15:01 -0700 From: Kees Cook <keescook@...omium.org> To: Duncan Sands <duncan.sands@...e.fr>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "Gustavo A. R. Silva" <gustavoars@...nel.org> Cc: Kees Cook <keescook@...omium.org>, linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org Subject: Re: [PATCH][next] usb: atm: Use size_add() in call to struct_size() On Fri, 15 Sep 2023 13:20:14 -0600, Gustavo A. R. Silva wrote: > If, for any reason, the open-coded arithmetic causes a wraparound, > the protection that `struct_size()` adds against potential integer > overflows is defeated. Fix this by hardening call to `struct_size()` > with `size_add()`. > > Applied to for-next/hardening, thanks! [1/1] usb: atm: Use size_add() in call to struct_size() https://git.kernel.org/kees/c/13f1a60fe04f Take care, -- Kees Cook
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