Messages in this thread | | | From | Roland McGrath <> | Subject | Re: [PATCH 1/1] ptrace: do_notify_parent_cldstop: fix the wrong ->nsproxy usage | Date | Wed, 27 May 2009 16:26:17 -0700 (PDT) |
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> No, task_pid_vnr(current) in ptrace_notify() is not right. If the tracer > does PTRACE_GETSIGINFO it gets the wrong .si_pid.
I don't follow. PTRACE_GETSIGINFO gets the tracee's siginfo_t data--modulo 32/64 conversions it's the data structure the tracee process sees on its stack when running a handler. It's not like a signal sent into the tracer's queue (like SIGCHLD in do_notify_*), where the kernel doing translation to the tracer's context makes sense. It's more like some memory you read from the tracee.
Thanks, Roland
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