Messages in this thread | | | Date | Thu, 18 Jun 2020 11:47:29 +0000 | From | Wei Liu <> | Subject | Re: [PATCH 1/3] x86/hyperv: allocate the hypercall page with only read and execute bits |
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On Thu, Jun 18, 2020 at 08:43:05AM +0200, Christoph Hellwig wrote: > Avoid a W^X violation cause by the fact that PAGE_KERNEL_EXEC includes the > writable bit. > > For this resurrect the removed PAGE_KERNEL_RX definitіon, but as > PAGE_KERNEL_ROX to match arm64 and powerpc. > > Fixes: 78bb17f76edc ("x86/hyperv: use vmalloc_exec for the hypercall page") > Reported-by: Dexuan Cui <decui@microsoft.com> > Signed-off-by: Christoph Hellwig <hch@lst.de> > Tested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Acked-by: Wei Liu <wei.liu@kernel.org>
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