CVE-2021-47087

tee: optee: Fix incorrect page free bug

Published: 3/4/2024 Last updated: 5/11/2026 Reserved: 2/29/2024

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.

CNA assigner: Linux (416baaa9-dc9f-4396-8d5f-8c081fb06d67) Requested by: n/a

Opam packages affected (29)

albatross cdrom conf-bpftool conf-libbpf conf-linux-libc-dev core core_unix hvsock mirage-block-unix mm ocaml-probes ortools_solvers orun rawlink rawlink-eio rawlink-lwt restricted shell solo5 solo5-bindings-hvt solo5-bindings-spt solo5-cross-aarch64 solo5-kernel-ukvm tracy-client tuntap uring vhd-format vhd-format-lwt xapi-stdext-unix

Products affected (4)

Product	Vendor	Version
Linux	Linux	n/a
Linux	Linux	n/a
Linux	Linux	10 Version 1809 for x64-based Systems
Linux	Linux	unspecified

CVE-2021-47087

tee: optee: Fix incorrect page free bug

Opam packages affected (29)

Products affected (4)

References (16)