Andreas Kling 190e0e1551 Kernel+SystemServer+CrashDaemon: Better control where we put core dumps ...

SystemServer now creates the /tmp/coredump and /tmp/profiler_coredumps
directories at startup, ensuring that they are owned by root, and with
basic 0755 permissions.

The kernel will also now refuse to put core dumps in a directory that
doesn't fulfill the following criteria:

- Owned by 0:0
- Directory with sticky bit not set
- 0755 permissions

Fixes #4435
Fixes #4850

2021-01-10 11:38:28 +01:00

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