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SubjectRe: [PATCH][next] tipc: Use size_add() in calls to struct_size()
On Fri, Sep 15, 2023 at 01:16:26PM -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()`.
>
> Fixes: e034c6d23bc4 ("tipc: Use struct_size() helper")
> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>

Reviewed-by: Kees Cook <keescook@chromium.org>

--
Kees Cook

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