CVE-2025-71077

MEDIUM

Linux Kernel - Denial of Service via TPM PCR Bank Allocation

Title source: llm
STIX 2.1

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.

References (7)

Core 7

Scores

CVSS v3 5.5
EPSS 0.0003
EPSS Percentile 9.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (25)
linux/Kernel 5.1.0 - 5.10.248linux
linux/Kernel 5.11.0 - 5.15.198linux
linux/Kernel 5.16.0 - 6.1.160linux
linux/Kernel 6.13.0 - 6.18.3linux
linux/Kernel 6.2.0 - 6.6.120linux
linux/Kernel 6.7.0 - 6.12.64linux
Linux/Linux < 5.1
Linux/Linux 5.1
Linux/Linux 5.10.248 - 5.10.*
Linux/Linux 5.15.198 - 5.15.*
... and 15 more
Published Jan 13, 2026
Tracked Since Feb 18, 2026