ERL-{375,376,378,379,381}: Ensure various sysctl parameters are set #50
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IsaacJT
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This was referenced Sep 11, 2023
Signed-off-by: Isaac True <isaac.true@canonical.com>
This enables restricted ptrace access, meaning a process must have a predefined relationship with the inferior it wants to call PTRACE_ATTACH on. Signed-off-by: Isaac True <isaac.true@canonical.com>
This setting only allows privileged users to view the kernel memory addresses. Signed-off-by: Isaac True <isaac.true@canonical.com>
This enables all kernel address space randomisation features. Signed-off-by: Isaac True <isaac.true@canonical.com>
This setting disables memory overcommit. Signed-off-by: Isaac True <isaac.true@canonical.com>
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ahresse
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Sep 14, 2023
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This sets the following sysctl parameters across all projects:
vm.overcommit_memory=2kernel.randomize_va_space=2kernel.kptr_restrict=1kernel.yama.ptrace_scope=1Additionally, it adds a spread test to ensure that these are set in the resulting images.