Date: Mon, 20 Jul 2009 15:49:57 +0400 From: Solar Designer <solar@...nwall.com> To: oss-security@...ts.openwall.com Subject: Re: Linux 2.6.30+/SELinux/RHEL5 test kernel 0day, exploiting the unexploitable On Mon, Jul 20, 2009 at 01:37:38PM +0200, Marcus Meissner wrote: > Foremost, the mmap_min_addr protection is not in older kernels (<2.6.23) at all, > so its kinda "not implemented" instead of "bug". Oh, understood. I did not think that way, because mmap_min_addr is implemented in recent 2.4 kernels, which are sort of "older", and it is also implemented in RHEL-5'ish OpenVZ kernels that we actually use. (BTW, I'd be happy to share the mmap_min_addr back-port patch to RHEL-5'ish kernels with Red Hat if there's any interest.) I am going to release 220.127.116.11-ow1 with a CVE-2009-1895 fix in it, and I expect it to get into 18.104.22.168. It's not important for systems with "sane" userlands (no crappy SUID-root programs), though. Alexander
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