Re: [PATCH -tip ] [BUGFIX] kprobes: Move hash_64() into .text.kprobe section

From: Timo Juhani Lindfors
Date: Mon Mar 18 2013 - 16:57:53 EST


Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx> writes:
> Thank you for reporting!!

Thanks for fixing these! I spent some time trying to automate the
process of finding sensitive functions and eventually resorted into
booting a kvm instance with a minimal initrd to test every single
function in a clean and reproducible environment.

I found 7 more cases where calling register_kprobe() leads to an instant
kernel panic:

__flush_tlb_single
native_flush_tlb
native_safe_halt
native_set_pgd
native_set_pmd
native_set_pud
native_write_cr0

You can see full kernel console output for each function at
http://lindi.iki.fi/lindi/linux/kprobes/panics_2013-03-18/
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