[grsec] pid randomization problem - process won't execute and
will return zero value
Brad Spengler
spender at grsecurity.net
Sun Aug 21 20:09:03 EDT 2005
> on systems with pid randomization enabled (CONFIG_GRKERNSEC_RANDPID=y),
> following will happen (example):
>
> $ time until /bin/false; do :; done
>
> real 0m5.336s
> user 0m1.583s
> sys 0m3.308s
It seems that the problem occurs on a regular Linux kernel as well, it
just takes longer (tested on 2.6.11.12):
spender at gw:~$ time until /bin/false; do :; done
real 1m28.695s
user 0m15.730s
sys 0m42.141s
spender at gw:~$ time until /bin/false; do :; done
real 54m1.585s
user 14m23.566s
sys 35m39.655s
So is the problem that it happens too quickly with a grsec kernel?
Also, am I the only one who can replicate this problem in a clean Linux
kernel?
-Brad
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