apply the latest TDX attestation driver from Intel

[Andrea Righi]

[Impact]

TDX guest attestation has been merged as SAUCE patches in the kinetic kernel with the following commits:

https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/kinetic/commit/?h=master-next&id=285d6d8136ebadcee7fd6452b9e4223996a2a0af
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/kinetic/commit/?h=master-next&id=0b78a71c7d7630ab7c3c8a03cbe4f78f1361fb45

However, Intel released a new TDX attestation driver that will be submitted upstream. We should align with the new version that will likely end upstream.

See also LP: #1971027

[Test case]

Testing this feature requires a special hardware in the host, special firmware and special configuration of a guest. Right now it can only be tested by Intel.

[Fix]

Apply the new driver provided by Intel in LP: #1971027.

[Regression potential]

The new driver can potentially break user-space applications that are relying on the TDX attestation feature. This is because of this struct (used in the user-space/kernel communication, via ioctl):

+ * Used in TDX_CMD_GET_REPORT IOCTL request.
+ */
+struct tdx_report_req {
+ __u8 subtype;
+ __u64 reportdata;
+ __u32 rpd_len;
+ __u64 tdreport;
+ __u32 tdr_len;
+};

The new patch changed the struct as following:

+struct tdx_report_req {
+ __u8 reportdata[TDX_REPORTDATA_LEN];
+ __u8 tdreport[TDX_REPORT_LEN];
+};

In general we should never apply changes that are breaking user-space like this (especially for non-devel kernels), but realistically we can probably say that nobody is using this feature yet, so nobody has any user-space program that is relying on the old struct (and if they do,
they're probably in touch with Intel, so they're aware of this change).

In conclusion, this change should be considered pretty safe, despite the potential user-space brekage.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

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 2009437

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.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the linux/5.19.0-40.41 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-kinetic' to 'verification-done-kinetic'. If the problem still exists, change the tag 'verification-needed-kinetic' to 'verification-failed-kinetic'.

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!

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 5.19.0-40.41

---------------
linux (5.19.0-40.41) kinetic; urgency=medium

  * kinetic/linux: 5.19.0-40.41 -proposed tracker (LP: #2012668)

  * CVE-2023-0468
    - io_uring: fix tw losing poll events
    - io_uring: make poll refs more robust

  * Regression in ext4 during online resize (LP: #2003816)
    - ext4: fix bad checksum after online resize
    - ext4: fix corruption when online resizing a 1K bigalloc fs
    - ext4: fix corrupt backup group descriptors after online resize

linux (5.19.0-39.40) kinetic; urgency=medium

  * kinetic/linux: 5.19.0-39.40 -proposed tracker (LP: #2011876)

  * CVE-2023-26545
    - net: mpls: fix stale pointer if allocation fails during device rename

  * CVE-2023-1032
    - net: avoid double iput when sock_alloc_file fails

  * CVE-2022-41218 // CVE-2022-41218 is assigned to those bugs above.
    - media: dvb-core: Fix UAF due to refcount races at releasing

  * CVE-2023-1281
    - net/sched: tcindex: update imperfect hash filters respecting rcu

  * linux: CONFIG_SERIAL_8250_MID=y (LP: #2009283)
    - [Config] enable CONFIG_SERIAL_8250_MID=y

  * apply the latest TDX attestation driver from Intel (LP: #2009437)
    - Revert "UBUNTU: SAUCE: selftests: tdx: Test GetReport TDX attestation
      feature"
    - Revert "UBUNTU: SAUCE: x86/tdx: Add TDX Guest attestation interface driver"
    - x86/tdx: Add a wrapper to get TDREPORT0 from the TDX Module
    - virt: Add TDX guest driver
    - selftests/tdx: Test TDX attestation GetReport support
    - [Config] enable TDX attestation driver as module by default

  * cpufreq: intel_pstate: Update Balance performance EPP for Sapphire Rapids
    (LP: #2008519)
    - cpufreq: intel_pstate: Adjust balance_performance EPP for Sapphire Rapids

  * Fail to output sound to external monitor which connects via docking station
    (LP: #2009024)
    - [Config] Enable CONFIG_SND_HDA_INTEL_HDMI_SILENT_STREAM

  * Fix mediatek wifi driver crash when loading wrong SAR table (LP: #2009118)
    - wifi: mt76: mt7921: fix error code of return in mt7921_acpi_read

  * CVE-2022-47929
    - net: sched: disallow noqueue for qdisc classes

  * Intel graphic driver is not probing[8086:468b] (LP: #1990242)
    - drm/i915: Add new ADL-S pci id

  * Some QHD panels fail to refresh when PSR2 enabled (LP: #2009014)
    - drm/i915/psr: Use full update In case of area calculation fails
    - drm/i915: Ensure damage clip area is within pipe area
    - SAUCE: drm/i915/psr: Use calculated io and fast wake lines

  * overlayfs mounts as R/O over idmapped mount (LP: #2009065)
    - SAUCE: overlayfs: handle idmapped mounts in ovl_do_(set|remove)xattr

  * Kinetic update: upstream stable patchset 2023-02-28 (LP: #2008832)
    - usb: musb: remove extra check in musb_gadget_vbus_draw
    - arm64: dts: qcom: ipq6018-cp01-c1: use BLSPI1 pins
    - arm64: dts: qcom: sm8250-sony-xperia-edo: fix touchscreen bias-disable
    - arm64: dts: qcom: msm8996: Add MSM8996 Pro support
    - arm64: dts: qcom: msm8996: fix supported-hw in cpufreq OPP tables
    - arm64: dts: qcom: msm8996: fix GPU OPP table
    - ARM: dts: qcom: apq8064: fix coresight compatible
    - arm64: dts:...

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the linux-ibm/5.19.0-1021.23 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-kinetic' to 'verification-done-kinetic'. If the problem still exists, change the tag 'verification-needed-kinetic' to 'verification-failed-kinetic'.

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!

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the linux-aws/5.19.0-1025.26 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-kinetic' to 'verification-done-kinetic'. If the problem still exists, change the tag 'verification-needed-kinetic' to 'verification-failed-kinetic'.

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!

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the linux-azure/5.19.0-1026.29 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-kinetic' to 'verification-done-kinetic'. If the problem still exists, change the tag 'verification-needed-kinetic' to 'verification-failed-kinetic'.

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!

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the linux-nvidia-5.19/5.19.0-1010.10 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-jammy' to 'verification-done-jammy'. If the problem still exists, change the tag 'verification-needed-jammy' to 'verification-failed-jammy'.

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!