CVE-2025-71077
Not scored
tpm: Cap the number of PCR banks
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.
Exploit probability
0.1%
Published
January 13, 2026
Required by
Not available
Last source change
August 12, 2026
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2025-71077
View original source
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/275c686f1e3cc056ec66c764489ec1fe1e51b950
- https://git.kernel.org/stable/c/858344bc9210bea9ab2bdc7e9e331ba84c164e50
- https://git.kernel.org/stable/c/8ceee7288152bc121a6bf92997261838c78bfe06
- https://git.kernel.org/stable/c/b69492161c056d36789aee42a87a33c18c8ed5e1
- https://git.kernel.org/stable/c/ceb70d31da5671d298bad94ae6c20e4bbb800f96
- https://git.kernel.org/stable/c/d88481653d74d622d1d0d2c9bad845fc2cc6fd23
- https://git.kernel.org/stable/c/faf07e611dfa464b201223a7253e9dc5ee0f3c9e
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71077.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-71077