APPLIED[F, J, L]: [PATCH v2 0/3][x/b/f/j/l linux] Fix minor regression in CVE-2022-40982

[Roxana Nicolescu]

On 15/09/2023 17:12, Tim Gardner wrote:
> v2: Add patches for Xenial, Bionic, Focal, Lunar
>
> 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 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 1045.
>
> [Test Plan]
>
> User test results pending.
>
> [Regression Potential]
>
> SGX could continue to fail.
>
>
Applied to focal,jammy,lunar:master-next. Thanks!