[lug] Linux sysctl() Kernel Memory Reading Vulnerability

[John Karns]

On Fri, 16 Feb 2001, D. Stimits said:

> Within that, you will have subdirectories, and modules can exist in most
> any of them. The modules have a ".o" suffix. I don't know which
> directory is best for this module, and it depends on if you use 2.2.x or
> 2.4.x as to the subdirectories available, but I would guess it goes in
> either an i386/kernel/ (2.4.x) or misc/ (2.2.x) directory. Then try
> either "depmod -a", or "insmod themodulename.o" (or modprobe), while
> monitoring /var/log/messages (e.g., "tail -f -n 30 /var/log/messages"
> will continuously monitor and display the log as it runs). If you don't
> like the module, delete it or move it, no harm done. So in addition to
> what you mentioned to activate it, you simply need to be sure it is
> where it can be found first, in the right modules subdirectory.

Don't you also have add a record / line to /etc/modules.conf (or is it
conf.modules...) in reference to the module before running depmod?

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John Karns                                              jkarns at csd.net