CVE-2021-47087 - CVE House
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Status published High CVE-2021-47087

tee: optee: Fix incorrect page free bug

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: tee: optee: Fix incorrect page free bug Pointer to the allocated pages (struct page *page) has already progressed towards the end of allocation. It is incorrect to perform __free_pages(page, order) using this pointer as we would free any arbitrary pages. Fix this by stop modifying the page pointer.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Linux
Vulnerable Versions:
3c712f14d8a9354a8807c15c64c8dd334499cc42, 1340dc3fb75ea69221f4f5dcb0cbace55ad0331c, ec185dd3ab257dc2a60953fdf1b6622f524cc5b7, 255e17923b22cb7abd026e044416d61f6bd0eec0, 5.4.140, 5.10.58, 5.13.10, 5.14, 0, 5.4.169, 5.10.89, 5.15.12, 5.16

Timeline

Official Publish: March 4th, 2024
Last Modified: May 23rd, 2026
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.