VYPR
Unrated severityNVD Advisory· Published Mar 4, 2024· Updated May 4, 2025

tee: optee: Fix incorrect page free bug

CVE-2021-47087

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.

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Affected products

144

Patches

Vulnerability mechanics

References

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