CVE-2021-46922
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-46922
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-46922.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-46922
- Downstream
- Related
- Published
- 2024-02-27T10:15:07Z
- Modified
- 2025-08-09T20:01:26Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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 tpmtrygetops() in tpm2seal_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 tpmtryget_ops()
- References