CVEvulnerability

CVE-2021-47087

7.8 HIGH Published 2024-03-04 Modified 2026-08-04 Official page ↗
Status
Modified
Published
2024-03-04
Last modified
2026-08-04
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-763

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.

Affected configurations

• linux linux kernel (>= 5.4.140 < 5.4.169) • linux linux kernel (>= 5.10.58 < 5.10.89) • linux linux kernel (>= 5.14 < 5.15.12) • linux linux kernel 5.16

Related

Weakness · CWE (1)

  • CWE-763 Release of Invalid Pointer or Reference weakness

References