Hi,

I inspect my Linux memory, and it seems that there is no area that
prohibite execution like I expected (using NX bit in modern CPU). That
really surprises me.

I looked at some potential data areas exported in System.map file, like:

- mark_rodata_ro
- sysctl_data
- new_cpu_data
- boot_cpu_data

And all of these areas allow to execute code (because NX=0 there). Is
that really desirable?

Anybody know for sure which area (easier to check if exported in
System.map) doesnt allow execute?

I can confirm that NX is active in my machine (reported in dmesg)

Thanks,
H

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