diff mbox

[RFC,v4,16/34] early kprobes: perhibit probing at early kprobe reserved area.

Message ID 1425306312-3437-17-git-send-email-wangnan0@huawei.com (mailing list archive)
State New, archived
Headers show

Commit Message

Wang Nan March 2, 2015, 2:24 p.m. UTC
Puts early kprobe reserved area into kprobe blacklist.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
---
 kernel/kprobes.c | 6 ++++++
 1 file changed, 6 insertions(+)
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Patch

diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 2d178fc..7dbe8b2 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -1405,6 +1405,12 @@  static bool within_kprobe_blacklist(unsigned long addr)
 	if (arch_within_kprobe_blacklist(addr))
 		return true;
 
+#ifdef CONFIG_EARLY_KPROBES
+	if (addr >= (unsigned long)__early_kprobes_start &&
+			addr < (unsigned long)__early_kprobes_end)
+		return true;
+#endif
+
 	if (!kprobes_blacklist_initialized)
 		return within_kprobe_blacklist_early(addr);