In the Linux kernel, the following vulnerability has been resolved:

KEYS: trusted: Fix TPM reservation for seal/unseal

The original patch 8c657a0590de ("KEYS: trusted: Reserve TPM for seal
and unseal operations") was correct on the mailing list:

https://lore.kernel.org/linux-integrity/20210128235621.127925-4-jarkko@kernel.org/

But somehow got rebased so that the tpm_try_get_ops() in
tpm2_seal_trusted() got lost. This causes an imbalanced put of the
TPM ops and causes oopses on TIS based hardware.

This fix puts back the lost tpm_try_get_ops()
Advisories

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Fixes

Solution

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Workaround

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-05-04T07:00:24.893Z

Reserved: 2024-02-25T13:45:52.719Z

Link: CVE-2021-46922

cve-icon Vulnrichment

Updated: 2024-08-04T05:17:42.976Z

cve-icon NVD

Status : Modified

Published: 2024-02-27T10:15:07.053

Modified: 2024-11-21T06:34:56.430

Link: CVE-2021-46922

cve-icon Redhat

Severity : Low

Publid Date: 2024-02-27T00:00:00Z

Links: CVE-2021-46922 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses