Messages in this thread | | | Date | Mon, 20 Feb 2017 16:36:30 +0100 | From | Oleg Nesterov <> | Subject | Re: [PATCH V2 1/2] exec: don't wait for zombie threads with cred_guard_mutex held |
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On 02/20, Oleg Nesterov wrote: > > Again, this needs some work. For example check_unsafe_exec() assumes > it can't race with another thread, see 9e00cdb091b008cb3c78192651180 > "exec:check_unsafe_exec: kill the dead -EAGAIN and clear_in_exec logic". > But this looks solvable.
Forgot to mention... plus check_unsafe_exec() checks ptrace, this is another reason why we can't simply shift mutex_lock(cred_guard_mutex) later.
Oleg.
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