Re: [PATCH 0/4] Seccomp filter JIT support on ARM.

From: Daniel Borkmann
Date: Thu Apr 30 2015 - 08:51:56 EST


On 04/30/2015 02:35 PM, Nicolas Schichan wrote:
On 04/29/2015 06:37 PM, Daniel Borkmann wrote:
On 04/29/2015 03:37 PM, Nicolas Schichan wrote:
...
The fourth and final patch fixes a bug in the emit_udiv() function
when used to convert a BPF_ALU | BPF_DIV | BPF_K instruction in the
ARM BPF JIT code.

Shouldn't that fix go separately, so it can be included into 4.1
resp. -stable?

Sure, shall I resend that separately from the v2 of the serie or is it fine in
its current form ?

Would be great if you could send that as an individual patch, since
it's a stand-alone fix and independent from the (feature) patch set.

Would be good if you also Cc Mircea, who wrote the code. Was that
caught by lib/test_bpf.c suite (if not, would be good to add a test
case for it) ?

It was detected by an internal test suite we have here. I see that there are
some BPF_ALU | BPF_DIV | BPF_K instructions so it might also be caught by
lib/test_bpf.c as well.

If there are some additional tests that are not yet covered by lib/test_bpf.c,
I'd be happy if you could add them there. This can also be as a follow-up,
but if we can increase coverage for others as well, the better.

Thanks again,
Daniel
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/