[RFC PATCH 7/9] x86/sgx: Enforce noexec filesystem restriction for enclaves

[Jarkko Sakkinen]

On Fri, May 31, 2019 at 04:31:57PM -0700, Sean Christopherson wrote:
> Do not allow an enclave page to be mapped with PROT_EXEC if the source
> page is backed by a file on a noexec file system.
> 
> Signed-off-by: Sean Christopherson <sean.j.christopherson at intel.com>

Why don't you just check in sgx_encl_add_page() that whether the path
comes from noexec and deny if SECINFO contains X?

/Jarkko