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From: Peter Zijlstra <peterz@infradead.org>
To: Andy Lutomirski <luto@amacapital.net>
Cc: KP Singh <kpsingh@chromium.org>,
Rick Edgecombe <rick.p.edgecombe@intel.com>,
linux-kernel@vger.kernel.org, bpf@vger.kernel.org,
x86@kernel.org, linux-security-module@vger.kernel.org,
Kees Cook <keescook@chromium.org>,
"David S. Miller" <davem@davemloft.net>,
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
Yonghong Song <yhs@fb.com>, Andrii Nakryiko <andriin@fb.com>,
Thomas Garnier <thgarnie@chromium.org>,
Florent Revest <revest@chromium.org>,
Brendan Jackman <jackmanb@chromium.org>,
Jann Horn <jannh@google.com>, Matthew Garrett <mjg59@google.com>,
Michael Halcrow <mhalcrow@google.com>
Subject: Re: [PATCH bpf-next] bpf: Make trampolines W^X
Date: Mon, 6 Jan 2020 09:23:15 +0100 [thread overview]
Message-ID: <20200106082315.GL2810@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <F25C9071-A7A7-4221-BC49-A769E1677EE1@amacapital.net>
On Sat, Jan 04, 2020 at 09:49:10AM +0900, Andy Lutomirski wrote:
> > - Mark memory as non executable (set_memory_nx). While module_alloc for
> > x86 allocates the memory as PAGE_KERNEL and not PAGE_KERNEL_EXEC, not
> > all implementations of module_alloc do so
>
> How about fixing this instead?
We only care about STRICT_MODULE_RMW (iow, arm, arm64, s390, x86). Of
those only s390 seems to be 'off'.
next prev parent reply other threads:[~2020-01-06 8:23 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-03 23:47 KP Singh
2020-01-04 0:49 ` Andy Lutomirski
2020-01-05 1:19 ` Justin Capella
2020-01-06 8:23 ` Peter Zijlstra [this message]
2020-01-06 22:25 ` Edgecombe, Rick P
2020-01-07 1:36 ` Andy Lutomirski
2020-01-07 19:01 ` Edgecombe, Rick P
2020-01-08 8:41 ` Andy Lutomirski
2020-01-08 20:52 ` Edgecombe, Rick P
2020-01-09 6:48 ` Andy Lutomirski
2020-01-10 1:00 ` Edgecombe, Rick P
2020-01-10 18:35 ` Andy Lutomirski
[not found] <CAMrEMU8Vsn8rfULqf1gfuYL_-ybqzit29CLYReskaZ8XUroZww@mail.gmail.com>
[not found] ` <768BAF04-BEBF-489A-8737-B645816B262A@amacapital.net>
2020-01-06 22:13 ` Alexei Starovoitov
2020-01-07 9:11 ` Peter Zijlstra
2020-01-07 18:55 ` Alexei Starovoitov
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