[PATCH 0/1][j linux] Fix minor regression in CVE-2022-40982

[Thadeu Lima de Souza Cascardo]

On Tue, Sep 12, 2023 at 09:07:49AM -0600, Tim Gardner wrote:
> BugLink: https://bugs.launchpad.net/bugs/2034745
> 
> SRU Justification
> 
> [Impact]
> 
> In 5.15.0-1045, only loading enclaves with XFRM set to 3 works, sgx_encl_init returns
> EINVAL. The only reason this wouldn't work properly is if sgx_drv_init thinks XSAVE
> isn't enabled. This works fine in j/linux-azure 5.15.0-1043.
> 
> Likely cause:
> 1045 adds this patch: https://github.com/torvalds/linux/commit/b81fac906a8f9e682e513ddd95697ec7a20878d4 .
> This later patch indicates that the former patch introduced some ordering problems.
> https://github.com/torvalds/linux/commit/2c66ca3949dc701da7f4c9407f2140ae425683a5 .
> That later patch isn't applied to j/linux-azure 5.15.0-1045.
> 
> [Test Plan]
> 
> User test results pending, but it is a fix commit, so likely worth
> applying regardless.
> 
> [Regression Potential]
> 
> SGX could continue to fail.
> 
> 
> -- 
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Why is this not submitted to lunar, focal, bionic, xenial, oem-6.1?

Cascardo.