Messages in this thread |  | | Subject | Re: [PATCH v15 00/26] Control-flow Enforcement: Shadow Stack | From | "Yu, Yu-cheng" <> | Date | Sat, 28 Nov 2020 08:31:02 -0800 |
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On 11/27/2020 1:29 AM, Balbir Singh wrote: > On Tue, Nov 10, 2020 at 08:21:45AM -0800, Yu-cheng Yu wrote: >> Control-flow Enforcement (CET) is a new Intel processor feature that blocks >> return/jump-oriented programming attacks. Details are in "Intel 64 and >> IA-32 Architectures Software Developer's Manual" [1]. >> >> CET can protect applications and the kernel. This series enables only >> application-level protection, and has three parts: >> >> - Shadow stack [2], >> - Indirect branch tracking [3], and >> - Selftests [4]. >> >> I have run tests on these patches for quite some time, and they have been >> very stable. Linux distributions with CET are available now, and Intel >> processors with CET are becoming available. It would be nice if CET >> support can be accepted into the kernel. I will be working to address any >> issues should they come up. >> > > Is there a way to run these patches for testing? Bochs emulation or anything > else? I presume you've been testing against violations of CET in user space? > Can you share your testing? > > Balbir Singh. >
Machines with CET are already available on the market. I tested these on real machines with Fedora. There is a quick test in my earlier selftest patches:
https://lore.kernel.org/linux-api/20200521211720.20236-6-yu-cheng.yu@intel.com/
Thanks, Yu-cheng
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