Bug 2565256 (CVE-2026-99221) - CVE-2026-99221 kernel: kernel: invalid trusted key instantiation via unhandled TPM unseal failure
Summary: CVE-2026-99221 kernel: kernel: invalid trusted key instantiation via unhandle...
Keywords:
Status: NEW
Alias: CVE-2026-99221
Product: Security Response
Classification: Other
Component: vulnerability-draft
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-02 16:29 UTC by OSIDB Bzimport
Modified: 2026-11-04 10:02 UTC (History)
17 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-11-02 16:29:46 UTC 
In the Linux kernel, the following vulnerability has been resolved:

keys/trusted_keys: return immediately after TPM unseal failure

trusted_tpm_unseal() proceeds to pcrlock() when the TPM unseal operation
fails. If pcrlock() succeeds, its return value overwrites the unseal error,
causing key instantiation to succeed.

Return immediately when unseal fails to preserve the original error.
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