On 05/18, Eric W. Biederman wrote:
>
> The code in ptrace_signal to populate siginfo if the signal number
> changed is buggy. If the tracer contined the tracee using
> ptrace_detach it is guaranteed to use the real_parent (or possibly a
> new tracer) but definitely not the origional tracer to populate si_pid
> and si_uid.
I guess nobody cares. As the comment says
If the debugger wanted something
specific in the siginfo structure then it should
have updated *info via PTRACE_SETSIGINFO.
otherwise I don't think si_pid/si_uid have any value.
However the patch looks fine to me, just the word "buggy" looks a bit
too strong imo.
Oleg.
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