Hi, > 2.4.22-1.2115.nptl kernel in FC1 is not vulnerable to this issue. > See linux-2.4.18-smallpatches.patch patch in > kernel-2.4.22-1.2115.nptl.src.rpm (mm/mmap.c change). So if these patches have been available since 2.4.18 then why are so many (non RH) systems still vulnerable? Aren't such bugs communicated to maintainers of other distros? Or to kernel.org? Leonard.