Bug#188475: /usr/bin/localedef confilicts with PAX

["mikee" <mpokrywka@hoga.pl>]

>   The malloc_initialize_hook is glibc's malloc() hook routine.  I guess
>   this program gets also sigsegv:
>   
[snip]
>   

no sigsegv:

mim:~# gcc -o testpax testpax.c
mim:~# ./testpax
malloc
mim:~# chpax -v testpax

----[ chpax 0.2 : Current flags for testpax ]----

 * Paging based PAGE_EXEC       : enabled (overridden)
 * Trampolines                  : not emulated
 * mprotect()                   : restricted
 * mmap() base                  : randomized
 * ET_EXEC base                 : not randomized
 * Segmentation based PAGE_EXEC : enabled

mim:~# grep PAX /var/log/syslog
mim:~#

>  Do you have any problems in X11 or java with pax?
i don't use x11 or java - that box is my lan gateway ;-)

i also received mail from pageexec@freemail.hu (pax team):
> just saw your bugreport on debian. what happens here is that localedef
> uses gcc nested functions which are invoked by placing some small code
> on the stack which happens to be non-executable, hence the task will
> be killed. chpax -sp disables both kinds of non-exec features on the
> target (even if technically -s is enough since you didn't compile the
> other feature in the kernel). a better solution would be to rewrite
> localedef to not use nested functions.

i suppose it explains the problem but solution depends on politics:
- patch glibc to be PAX/enhanced security/ friendly OR
- reconfigure PAX to be glibc friendly
i like first solution but i won't rewrite localedef tool myself
so this is my wish ;-)

regards

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