On 2/27/15 8:28 AM, Ian Lepore wrote:
Log:
Allow the kern.osrelease and kern.osreldate sysctl values to be set in a
jail's creation parameters. This allows the kernel version to be reliably
spoofed within the jail whether examined directly with sysctl or
indirectly with the uname -r and -K options.
[..]
There is no sanity or range checking, other than disallowing an empty
release string or a zero release date, by design. The system
administrator is trusted to set sane values. Setting values that are
newer than the actual running kernel will likely cause compatibility
problems.
I would think that you could at set time ensure that only older
releases were allowed..
I'm not sure what the rule would be with sub-sub-jails.. older than
parent, or older than base system..?
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