[MELTDOWN] Hi everyone, this is not a news channel, but it can | LinuxCheatSheet

[MELTDOWN] Hi everyone, this is not a news channel, but it can be useful to have some tips on how to check if your Linux kernel has enabled KPTI feature against the Meltdown attack that everyone is talking about.
Use one of this methods:
1) [cheats@telegram ~]$ zgrep CONFIG_PAGE_TABLE_ISOLATION /proc/config.gz
it should return CONFIG_PAGE_TABLE_ISOLATION=y
2) [cheats@telegram ~]$ dmesg | grep 'page tables isolation'
should return Kernel/User page tables isolation: enabled
3) [cheats@telegram ~]$ dmesg | grep 'x86/pti'
should return x86/pti: Unmapping kernel while in userspace
4) [cheats@telegram ~]$ grep cpu_insecure /proc/cpuinfo
should return bugs : cpu_insecure

I was able to verify personally commands 1-3 on different servers with different linux versions (version 4 didn't work but it is reported to work on different websites).

If none of the above commands works please update your kernel. More information on Meltdown/Spectre: https://meltdownattack.com/

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Bye
G.