prevent boosting kprobes on exception address

[pandora-kernel.git] / arch / x86 / kernel / kprobes.c

diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index e948b28..4558dd3 100644 (file)
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -193,6 +193,9 @@ static int __kprobes can_boost(kprobe_opcode_t *opcodes)
        kprobe_opcode_t opcode;
        kprobe_opcode_t *orig_opcodes = opcodes;
 
+       if (search_exception_tables(opcodes))
+               return 0;       /* Page fault may occur on this address. */
+
 retry:
        if (opcodes - orig_opcodes > MAX_INSN_SIZE - 1)
                return 0;