In the Linux kernel, the following vulnerability has been resolved:

tpm: Cap the number of PCR banks

tpm2_get_pcr_allocation() does not cap any upper limit for the number of
banks. Cap the limit to eight banks so that out of bounds values coming
from external I/O cause on only limited harm.
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Tue, 13 Jan 2026 15:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: tpm: Cap the number of PCR banks tpm2_get_pcr_allocation() does not cap any upper limit for the number of banks. Cap the limit to eight banks so that out of bounds values coming from external I/O cause on only limited harm.
Title tpm: Cap the number of PCR banks
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-01-13T15:31:29.435Z

Reserved: 2026-01-13T15:30:19.648Z

Link: CVE-2025-71077

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-01-13T16:16:07.200

Modified: 2026-01-13T16:16:07.200

Link: CVE-2025-71077

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.