Messages in this thread | | | Subject | Re: [kernel-hardening] [RFC][PATCH 6/7] mm: Add Kconfig option for slab sanitization | From | Dave Hansen <> | Date | Tue, 22 Dec 2015 06:57:55 -0800 |
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On 12/21/2015 07:40 PM, Laura Abbott wrote: > + The tradeoff is performance impact. The noticible impact can vary > + and you are advised to test this feature on your expected workload > + before deploying it
What if instead of writing SLAB_MEMORY_SANITIZE_VALUE, we wrote 0's? That still destroys the information, but it has the positive effect of allowing a kzalloc() call to avoid zeroing the slab object. It might mitigate some of the performance impact.
If this is on at compile time, but booted with sanitize_slab=off, is there a performance impact?
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