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Description of problem:

In the seccomp implementation prior to kernel version 4.8, there is a possible seccomp bypass due to seccomp policies that allow the use of ptrace. This could lead to local escalation of privilege with no additional execution privileges needed. 

Additional info:

This is a behavioural change that some applications may rely on (I don't expect that it will).

Product Management has reviewed and declined this request.
You may appeal this decision by reopening this request.