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SubjectRe: [BUGFIX PATCH v3 0/4] arm: kprobes: Fix to prohibit probing on unsafe functions
On Fri, May 04, 2018 at 01:14:31PM +0900, Masami Hiramatsu wrote:
> Hi,
>
> This is the 3rd version of bugfix series for kprobes on arm.
> This series fixes 4 different issues which I found.
>
> - Fix to use smp_processor_id() after disabling preemption.
> - Prohibit probing on optimized_callback() for avoiding
> recursive probe.
> - Prohibit kprobes on do_undefinstr() by same reason.
> - Prohibit kprobes on get_user() by same reason.
>
> >From v2, I included another 2 bugfixes (1/4 and 2/4)
> which are not merged yet, and added "Cc: stable@vger.kernel.org",
> since there are obvious bugs.

Please submit them to the patch system, thanks.

>
> Thanks,
>
> ---
>
> Masami Hiramatsu (4):
> arm: kprobes: Fix to use get_kprobe_ctlblk after irq-disabed
> arm: kprobes: Prohibit probing on optimized_callback
> arm: kprobes: Prohibit kprobes on do_undefinstr
> arm: kprobes: Prohibit kprobes on get_user functions
>
>
> arch/arm/include/asm/assembler.h | 10 ++++++++++
> arch/arm/kernel/traps.c | 5 ++++-
> arch/arm/lib/getuser.S | 10 ++++++++++
> arch/arm/probes/kprobes/opt-arm.c | 4 +++-
> 4 files changed, 27 insertions(+), 2 deletions(-)
>
> --
> Masami Hiramatsu (Linaro) <mhiramat@kernel.org>

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