[PATCH v4 1/6] Fix calling fcntl64 (fd, F_SETLK, &flock64)

[Sergey Bugaev]

Hello,

On Mon, Jul 31, 2023 at 8:50 PM Adhemerval Zanella Netto
<adhemerval.zanella@linaro.org> wrote:
> Nice, it seems that on both tests the fields that might trigger wrong values
> by the kernel reading the struct with a wrong size (l_start and l_len) are
> always being 0 and thus it should not matter.
>
> LGTM, thanks.

But please note that this only really fortifies tests & other code
that uses the public fcntl/fcntl64 API, not callers of __libc_fcntl64,
so it's not a guarantee that there are no more cases of this. Though I
guess this applies equally to all the other fortifications.

Sergey