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| author | bibo,mao <bibo.mao@intel.com> | 2006-10-02 02:17:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-02 07:57:16 -0700 |
| commit | f2aa85a0ccd90110e76c6375535adc3ae358f971 (patch) | |
| tree | dc4db8faacd37ec0d09ec719b53b8550cbe0dbc9 /kernel | |
| parent | 62c27be0dd8144e11bd3ed054a0fb890579925f8 (diff) | |
| download | linux-f2aa85a0ccd90110e76c6375535adc3ae358f971.tar.gz linux-f2aa85a0ccd90110e76c6375535adc3ae358f971.tar.bz2 linux-f2aa85a0ccd90110e76c6375535adc3ae358f971.zip | |
[PATCH] disallow kprobes on notifier_call_chain
When kprobe is re-entered, the re-entered kprobe kernel path will will call
atomic_notifier_call_chain function, if this function is kprobed that will
incur numerous kprobe recursive fault. This patch disallows kprobes on
atomic_notifier_call_chain function.
Signed-off-by: bibo, mao <bibo.mao@intel.com>
Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sys.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sys.c b/kernel/sys.c index 2460581c928c..398d57923f95 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -221,7 +221,7 @@ EXPORT_SYMBOL_GPL(atomic_notifier_chain_unregister); * of the last notifier function called. */ -int atomic_notifier_call_chain(struct atomic_notifier_head *nh, +int __kprobes atomic_notifier_call_chain(struct atomic_notifier_head *nh, unsigned long val, void *v) { int ret; |