Messages in this thread Patch in this message | | | From | Francis Deslauriers <> | Subject | [PATCH 2/2] kprobe: fix: Add ftrace_ops_assist_func to kprobe blacklist | Date | Fri, 14 Jul 2017 10:58:35 -0400 |
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This function is called when a kprobe is hit. Thus it should be blacklisted to prevent kprobe to be triggered by kprobes.
Signed-off-by: Francis Deslauriers <francis.deslauriers@efficios.com> --- kernel/trace/ftrace.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index b308be3..c473d9b 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -36,6 +36,7 @@ #include <trace/events/sched.h> +#include <asm/kprobes.h> #include <asm/sections.h> #include <asm/setup.h> @@ -5739,6 +5740,7 @@ static void ftrace_ops_assist_func(unsigned long ip, unsigned long parent_ip, preempt_enable_notrace(); trace_clear_recursion(bit); } +NOKPROBE_SYMBOL(ftrace_ops_assist_func); /** * ftrace_ops_get_func - get the function a trampoline should call -- 2.7.4
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