This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 2034745
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/2034745
Title:
[regression] Unable to initialize SGX enclaves with XFRM other than 3
Status in linux package in Ubuntu:
Incomplete
Bug description:
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 tested.
[Regression Potential]
SGX could continue to fail.
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