Fix TPM Issues in Kernel 6.12.49 LTS#5303
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eriknordmark merged 2 commits intoOct 14, 2025
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TpmSign is called early, before all the TPM keys are created, so if we call ValidateKernelNullPrimary here, it always fails to certify the null primary key because the certifying key is not created yet. Signed-off-by: Shahriyar Jalayeri <[email protected]>
Allow vtpm to read null_name (for TPM reset protection), ceiling value for listen(2) and transparent hugepage size (go memory allocator). Signed-off-by: Shahriyar Jalayeri <[email protected]>
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@rene my original commit ended up in 15.12.0-rc1 and 15.11.0, should I backport this fix to 15 then? |
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@shjala , 15.11.0 is just a bi-weekly build and current master will become 15.12.0-rc2, later on we will need to push a 15.12-stable branch, so I think we are good, no need to backport.... |
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Description
Fixes two issues :
1- Update apparmor profile and allow vtpm to read null_name (for TPM reset protection)
2- Do not call ValidateKernelNullPrimary in TpmSign because TpmSign is called before the key needed to certify null key is created.
PR dependencies
This should go before #5287
How to test and validate this PR
Will be tested as part of #5287
Changelog notes
Fix TPM reset protection and vTPM access: skip null primary check in TpmSign and allow vTPM to read null_name.
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