Re: [PATCH] samples/seccomp: fix endianness bug in LO_ARG define
From: Kees Cook
Date: Tue Jul 31 2012 - 12:21:02 EST
On Tue, Jul 31, 2012 at 7:15 AM, Heiko Carstens
<heiko.carstens@xxxxxxxxxx> wrote:
> From: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
>
> The LO_ARG define needs to consider endianness also for 32 bit builds.
>
> The "bpf_fancy" test case didn't work on s390 in 32 bit and compat mode
> because the LO_ARG define resulted in a BPF program which read the upper
> halve of the 64 bit system call arguments instead of the lower halves.
>
> Signed-off-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Good catch; thanks for the fix!
Acked-by: Kees Cook <keescook@xxxxxxxxxxxx>
-Kees
--
Kees Cook
Chrome OS Security
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