CVE-2021-46922 - OpenCVE

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()

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Linux	Linux Kernel

Configuration 1 [-]

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

No data.

References

Link	Providers
https://git.kernel.org/stable/c/39c8d760d44cb3fa0d67e8cd505df81cf4d80999
https://git.kernel.org/stable/c/9d5171eab462a63e2fbebfccf6026e92be018f20
https://git.kernel.org/stable/c/bf84ef2dd2ccdcd8f2658476d34b51455f970ce4
https://lore.kernel.org/linux-cve-announce/2024022736-CVE-2021-46922-39b5@gregkh/T/#u
https://nvd.nist.gov/vuln/detail/CVE-2021-46922
https://www.cve.org/CVERecord?id=CVE-2021-46922

History

No history.

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-02-27T09:36:27.145Z

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

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

Link: CVE-2021-46922

Vulnrichment

Updated: 2024-07-25T16:00:24.486Z

NVD

Status : Analyzed

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

Modified: 2024-04-10T15:31:51.440

Link: CVE-2021-46922

Redhat

Severity : Low

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

Links: CVE-2021-46922 - Bugzilla

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