1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

Fedora 20 Will Have A Security/Performance Change

Fedora

Published on 26 June 2013 03:48 PM EDT
Written by Michael Larabel in Fedora
4 Comments

With Fedora 19 being released soon, the Fedora Engineering and Steering Committee has begun evaluating potential changes/features for Fedora 20. One of the features that was approved today is a build change for the RPMs that can yield greater code security but at the potential cost of performance.

The change that was approved today is a GCC flag change for now using "-fstack-protector-strong" on building Fedora RPM packages rather than just the "-fstack-protector" argument. The -fstack-protector flag has the compiler generate extra code automatically to check for buffer overflows. If a guard check fails -- meaning a potential buffer overflow occurred within the application -- there's an error message and the program exits. Fedora has been using -fstack-protector but now they are looking to use -fstack-protector-strong.

The strong fstack-protector came out of Google and was committed last year to the GNU Compiler Collection. The -fstack-protector-strong is a middle ground between the simple fstack-protector and fstack-protector-all, which is the greatest level of stack protection but can cost in run-time performance. Google suffered from a performance penalty when using fstack-protector-all for Chrome OS, so they devised fstack-protector-strong as a nice balance between the two existing commands.

When it was published last year, Google had been using it with Chromium OS already for a period of two years and didn't find any security problems.

Fedora 20 will now build with fstack-protector-strong to provide for greater stack protection over their simple fstack-protector they had been using, but aren't leaping to fstack-protector-all.

While this has the potential for slightly decreasing the performance, if there are performance regressions to be found, a reversion could take place prior to the mass rebuild for the Fedora 20 release. The details of this change were shared in today's FESCo meeting minutes.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. AMD's New Athlon/Semprons Give Old Phenom CPUs A Big Run For The Money
  2. 13-Way Low-End GPU Comparison With AMD's AM1 Athlon
  3. ASUS AM1I-A: A Mini-ITX Board For Socketed Kabini APUs
  4. Mini-Box M350: A Simple, Affordable Mini-ITX Case
Latest Linux Articles
  1. How Much Video RAM Is Needed For Catalyst R3 Graphics?
  2. Ubuntu 12.04 LTS vs. 14.04 LTS Cloud Benchmarks
  3. Ubuntu 12.04.4 vs. 13.10 vs. 14.04 LTS Desktop Benchmarks
  4. AMD OpenCL Performance With AM1 Kabini APUs
Latest Linux News
  1. Packard Bell LM85 Now Supported By Coreboot
  2. AmazonBasics External USB 2.0 DVD Writer For Linux
  3. TP-LINK TG-3468: A $12 Linux PCI-E Gigabit Network Adapter
  4. Linux 3.15 Lands Some DRM Graphics Driver Fixes
  5. AMD Is Disabling DPM Support For RV770 GPUs
  6. ReactOS Working On A Community Windows OS
  7. eRacks Keeps Pushing Linux, Open-Source Systems After 15 Years
  8. Borderlands Is Being Considered For Linux
  9. Mesa 10.0 & 10.1 Stable Get Updated
  10. Git 2.0 Test Releases Begin With Many Changes
  11. Wine 1.7.17 Works On Its Task Scheduler, C Run-Time
  12. The Improv ARM Board Still Isn't Shipping; Riding A Dead Horse?
Latest Forum Discussions
  1. The GNOME Foundation Is Running Short On Money
  2. Updated and Optimized Ubuntu Free Graphics Drivers
  3. Catalyst 14.3 Beta
  4. Suggestions about how to make a Radeon HD 7790 work decently?
  5. Radeon 8000M problematic on Linux?
  6. Linux Kernel Developers Fed Up With Ridiculous Bugs In Systemd
  7. After Jack Keane, RuseSoft will briing Ankh 3 to Linux through Desura
  8. Suspected PHP Proxy Issue