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Message-Id: <152540727123.29650.13679359124038587629.stgit@devbox>
Date: Fri, 4 May 2018 13:14:31 +0900
From: Masami Hiramatsu <mhiramat@...nel.org>
To: Russell King <linux@...linux.org.uk>
Cc: Wang Nan <wangnan0@...wei.com>, Will Deacon <will.deacon@....com>,
Jon Medhurst <tixy@...aro.org>,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
mhiramat@...nel.org, David Long <dave.long@...aro.org>,
stable@...r.kernel.org
Subject: [BUGFIX PATCH v3 0/4] arm: kprobes: Fix to prohibit probing on unsafe functions
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@...r.kernel.org",
since there are obvious bugs.
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@...nel.org>
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