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.
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