Messages in this thread | | | Date | Thu, 7 Mar 2019 18:41:35 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH 18/20] objtool: Add UACCESS validation |
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On Thu, Mar 07, 2019 at 08:33:26AM -0800, Linus Torvalds wrote: > On Thu, Mar 7, 2019 at 3:52 AM Peter Zijlstra <peterz@infradead.org> wrote: > > > > XXX: are we sure we want __memset marked AC-safe? > > It's certainly one of the safer functions to call with AC set, but it > sounds wrong anyway. It's not like it's likely to leak kernel data > (most memset's are with 0, and even the non-zero ones I can't imagine > are sensitive - more like poison values etc). > > What's the call site that made you go "just add __memset() to the list"?
__asan_{,un}poinson_stack_memory() kasan_{,un}poison_shadow() __memset()
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