Re: [PATCH][next] usb: atm: Use size_add() in call to struct_size()

2023-09-15 Thread Kees Cook
On Fri, Sep 15, 2023 at 01:20:14PM -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()`.

[PATCH][next] usb: atm: Use size_add() in call to struct_size()

2023-09-15 Thread Gustavo A. R. Silva
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: b626871a7cda ("usb: atm: Use struct_size() helper") Signed-off-by: Gu