[Bug 2130240] Re: CXL: Fix slab-out-of-bounds in cxl_setup_parent_dport

This bug is awaiting verification that the linux-azure-
fips/6.8.0-1052.58+fips1 kernel in -proposed solves the problem. Please
test the kernel and update this bug with the results. If the problem is
solved, change the tag 'verification-needed-noble-linux-azure-fips' to
'verification-done-noble-linux-azure-fips'. If the problem still exists,
change the tag 'verification-needed-noble-linux-azure-fips' to
'verification-failed-noble-linux-azure-fips'.


If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.


See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: kernel-spammed-noble-linux-azure-fips-v2 verification-needed-noble-linux-azure-fips

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https://bugs.launchpad.net/bugs/2130240

Title:
CXL: Fix slab-out-of-bounds in cxl_setup_parent_dport

Status in linux package in Ubuntu:
Invalid
Status in linux source package in Noble:
Fix Released

Bug description:
[ Impact ]

 * Fix slab-out-of-bounds cxl enabled guest image, boot the guest
without issue.

[ Fix ]

 * Clean cherry-pick fix from upstream:
  8c251c5ab1b cxl/pci: Get AER capability address from RCRB only for RCH dport
2c402bd2e85b4 cxl/test: Skip cxl_setup_parent_dport() for emulated dports
[ Test Plan ]

 * Compiled.

[ Where problems could occur ]

 * Regression in cxl enabled systems.

[ Other Info ]

 * This is a public version of:
https://bugs.launchpad.net/ubuntu/+bug/2104166

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