about buffer overflow.
A message that is not in the archive (sent off-list or not yet received): E19Hp05-0005FO-00@andromeda
Check out [http://www.trusteddebian.org/]. They apply a bunch of kernel patches like grsecurity. Seems they have to recompile, repackage all the .debs though.
It is interesting to note that some of these patches introduce an apparent non-determinism into userspace; the same inputs could result in different outputs (the difference is that there are more inputs than userspace can actually see). So, maybe it could happen that you get a segv from an off by 1, but when you rerun it, you can't reproduce it because all the addresses are different.
In practice, this will eventually segv somewhere, and someone will find the problem, but its something to consider.
Justin Pryzby
Quoted 14 lines · Barry K. Nathan
Quoted 3 lines · Halil Demirezen
yes that is interesting, however, what i want to learn, clearly, is this patch available from 2.4.20-rc1 at every default linux kernel from this moment on?
...
BTW, another option is the pageexec ('PaX') patch:
http://pageexec.virtualave.net/ (warning: this page has pop-up windows)and that's integrated into a more comprehensive security patch, grsecurity:
http://www.grsecurity.net/-Barry K. Nathan <[email protected]>