CVE-2021-46922

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Source
https://cve.org/CVERecord?id=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
2024-02-27T10:15:07.053Z
Modified
2026-03-13T05:19:21.397508Z
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

Affected packages

Git /

Affected ranges

Database specific

unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "5.10.20"
            },
            {
                "fixed": "5.10.33"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "5.11.3"
            },
            {
                "fixed": "5.11.17"
            }
        ]
    }
]
source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-46922.json"