CVE-2021-47087

HIGH

Linux kernel - Memory Corruption

Title source: llm
STIX 2.1

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.

Scores

CVSS v3 7.8
EPSS 0.0002
EPSS Percentile 3.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-763
Status published
Products (2)
linux/linux_kernel 5.16 rc1 (6 CPE variants)
linux/linux_kernel 5.4.140 - 5.4.169
Published Mar 04, 2024
Tracked Since Feb 18, 2026