=Comment: #0================================================= Emily J. Ratliff <ratliff.com> - 1. Feature Overview: Feature Id: [200855] a. Name of Feature: Linux on System z: Enhanced Linux System Layout b. Feature Description Execute the user program in secondary space mode (executable comes through primary space while data is accessed through the secondary space). Add a second paging table for data access. This enables the kernel to map executable code to primary space only. The kernel itself will operate in home space mode. 2. Feature Details: Sponsor: zSeries Architectures: s390x Arch Specificity: Both Affects Core Kernel: Yes Delivery Mechanism: Backport Category: Kernel Request Type: Kernel - Enhancement from IBM d. Upstream Acceptance: Accepted Sponsor Priority 1 f. Severity: High IBM Confidential: no Code Contribution: IBM code g. Component Version Target: 2.6.21 3. Business Case Enhanced Security: protection against buffer overwrite exploits. Benefits The item introduces a secure Linux system that is protected against stack overwrites, e.g. delivering a system that is insensitive against buffer exploits (security!). 4. Primary contact at Red Hat: John Jarvis jjarvis 5. Primary contacts at Partner: Project Management Contact: Hans-Georg Markgraf, mgrf.com, Boeblingen 49-7031-16-3978 Technical contact(s): Gonzalo Muelas Serrano, gmuelas.com IBM Manager: Thomas Schwarz, t.schwarz.com
IBM is signed up to test and provide feedback.
As discussed in yesterdays call, this feature request need to be deferred to RHEL 5.5. John plans to open a RHEL 5.5 Tracker BZ and connect that to this feature BZ to use this request for RHEL 5.5 I set this to defer for now, to re-open for RHEL 5.5 feature submission
Closing as DEFERRED based on comment 2
------- Comment From mgrf.com 2009-08-03 06:58 EDT------- IBM not pursue this with RHEL 5 stream. Closing feature request