The patch titled
kprobes: refuse kprobe insertion on add/sub_preempt_counter()
has been removed from the -mm tree. Its filename was
kprobes-refuse-kprobe-insertion-on-add-sub_preempt_counter.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: kprobes: refuse kprobe insertion on add/sub_preempt_counter()
From: Srinivasa Ds <srinivasa@xxxxxxxxxx>
Kprobes makes use of preempt_disable(),preempt_enable_noresched() and these
functions inturn call add/sub_preempt_count(). So we need to refuse user from
inserting probe in to these functions.
This patch disallows user from probing add/sub_preempt_count().
Signed-off-by: Srinivasa DS <srinivasa@xxxxxxxxxx>
Acked-by: Ananth N Mavinakayanahalli <ananth@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/sched.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN kernel/sched.c~kprobes-refuse-kprobe-insertion-on-add-sub_preempt_counter kernel/sched.c
--- a/kernel/sched.c~kprobes-refuse-kprobe-insertion-on-add-sub_preempt_counter
+++ a/kernel/sched.c
@@ -3766,7 +3766,7 @@ void scheduler_tick(void)
#if defined(CONFIG_PREEMPT) && defined(CONFIG_DEBUG_PREEMPT)
-void add_preempt_count(int val)
+void __kprobes add_preempt_count(int val)
{
/*
* Underflow?
@@ -3782,7 +3782,7 @@ void add_preempt_count(int val)
}
EXPORT_SYMBOL(add_preempt_count);
-void sub_preempt_count(int val)
+void __kprobes sub_preempt_count(int val)
{
/*
* Underflow?
_
Patches currently in -mm which might be from srinivasa@xxxxxxxxxx are
-
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