CVE-2021-46922
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
27/02/2024
Last modified:
10/04/2024
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
KEYS: trusted: Fix TPM reservation for seal/unseal<br />
<br />
The original patch 8c657a0590de ("KEYS: trusted: Reserve TPM for seal<br />
and unseal operations") was correct on the mailing list:<br />
<br />
https://lore.kernel.org/linux-integrity/20210128235621.127925-4-jarkko@kernel.org/<br />
<br />
But somehow got rebased so that the tpm_try_get_ops() in<br />
tpm2_seal_trusted() got lost. This causes an imbalanced put of the<br />
TPM ops and causes oopses on TIS based hardware.<br />
<br />
This fix puts back the lost tpm_try_get_ops()
Impact
Base Score 3.x
5.50
Severity 3.x
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.10.20 (including) | 5.10.33 (excluding) |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.11.3 (including) | 5.11.17 (excluding) |
To consult the complete list of CPE names with products and versions, see this page