Tracker / CVE-2021-47087
CVE-2021-47087
High 7.8
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.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 5.10.58 → 5.10.89 |
| linux | linux_kernel · 5.14 → 5.15.12 |
| linux | linux_kernel · 5.4.140 → 5.4.169 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.