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Vulnerability Details CVE-2021-46922

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()

Exploit prediction scoring system (EPSS) score

EPSS Score 0.0

EPSS Ranking 2.6%

CVSS Severity

CVSS v3 Score 5.5

References

Products affected by CVE-2021-46922

Linux » Linux Kernel » Version: 5.10.20

cpe:2.3:o:linux:linux_kernel:5.10.20
Linux » Linux Kernel » Version: 5.10.21

cpe:2.3:o:linux:linux_kernel:5.10.21
Linux » Linux Kernel » Version: 5.10.22

cpe:2.3:o:linux:linux_kernel:5.10.22
Linux » Linux Kernel » Version: 5.10.23

cpe:2.3:o:linux:linux_kernel:5.10.23
Linux » Linux Kernel » Version: 5.10.24

cpe:2.3:o:linux:linux_kernel:5.10.24
Linux » Linux Kernel » Version: 5.10.25

cpe:2.3:o:linux:linux_kernel:5.10.25
Linux » Linux Kernel » Version: 5.10.26

cpe:2.3:o:linux:linux_kernel:5.10.26
Linux » Linux Kernel » Version: 5.10.27

cpe:2.3:o:linux:linux_kernel:5.10.27
Linux » Linux Kernel » Version: 5.10.28

cpe:2.3:o:linux:linux_kernel:5.10.28
Linux » Linux Kernel » Version: 5.10.29

cpe:2.3:o:linux:linux_kernel:5.10.29
Linux » Linux Kernel » Version: 5.10.30

cpe:2.3:o:linux:linux_kernel:5.10.30
Linux » Linux Kernel » Version: 5.10.31

cpe:2.3:o:linux:linux_kernel:5.10.31
Linux » Linux Kernel » Version: 5.10.32

cpe:2.3:o:linux:linux_kernel:5.10.32
Linux » Linux Kernel » Version: 5.11.10

cpe:2.3:o:linux:linux_kernel:5.11.10
Linux » Linux Kernel » Version: 5.11.11

cpe:2.3:o:linux:linux_kernel:5.11.11
Linux » Linux Kernel » Version: 5.11.12

cpe:2.3:o:linux:linux_kernel:5.11.12
Linux » Linux Kernel » Version: 5.11.13

cpe:2.3:o:linux:linux_kernel:5.11.13
Linux » Linux Kernel » Version: 5.11.14

cpe:2.3:o:linux:linux_kernel:5.11.14
Linux » Linux Kernel » Version: 5.11.15

cpe:2.3:o:linux:linux_kernel:5.11.15
Linux » Linux Kernel » Version: 5.11.16

cpe:2.3:o:linux:linux_kernel:5.11.16
Linux » Linux Kernel » Version: 5.11.3

cpe:2.3:o:linux:linux_kernel:5.11.3
Linux » Linux Kernel » Version: 5.11.4

cpe:2.3:o:linux:linux_kernel:5.11.4
Linux » Linux Kernel » Version: 5.11.5

cpe:2.3:o:linux:linux_kernel:5.11.5
Linux » Linux Kernel » Version: 5.11.6

cpe:2.3:o:linux:linux_kernel:5.11.6
Linux » Linux Kernel » Version: 5.11.7

cpe:2.3:o:linux:linux_kernel:5.11.7
Linux » Linux Kernel » Version: 5.11.8

cpe:2.3:o:linux:linux_kernel:5.11.8
Linux » Linux Kernel » Version: 5.11.9

cpe:2.3:o:linux:linux_kernel:5.11.9

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Vulnerability Details CVE-2021-46922

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