Andrew Kaster 1d3b5d330d Kernel: Tolerate cloning MAP_STACK regions that are PROT_NONE ...

There's nothing stopping a userspace program from keeping a bunch of
threads around with a custom signal stack in a suspended state with
their normal thread stack mprotected to PROT_NONE.

OpenJDK seems to do this, for example.

2022-06-19 09:05:35 +02:00

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