Mastodawn

CVE-2026-40290 - Use-after-free in Op-Tee FF-A shared memory teardown. Race condition leads to potential memory corruption. CVSS 7.8. Unpatched. Update or apply mitigations now. #CVE #infosec #OpTee

https://www.valtersit.com/cve/CVE-2026-40290/

CVE-2026-40290 | Op-Tee | Valters IT Hub

OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone techn...

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Embedded Recipes May 28

🎙️ Opening talk of Day 2 at #EmbeddedRecipes2026!

Rouven Czerwinski kicks off the second day with a comprehensive deep dive: "OP-TEE and its many features".

📥 Slides available here: https://cfp.embedded-recipes.org/media/er2026/submissions/YSADJ9/resources/OP-TEE_and_its_many_443enLf.pdf

#EmbeddedRecipes2026 #EmbeddedLinux #OPTEE #TrustZone #SecureBoot #ARMv8 #EmbeddedSecurity #OpenSource

Embedded Recipes May 27

🎙️ Next talk at Embedded Recipes 2026!

Michael Tretter is on stage with a highly practical session: "Open Source Tools for Secure Boot on Rockchip RK3588".

#EmbeddedRecipes2026 #EmbeddedLinux #SecureBoot #Rockchip #RK3588 #OPTEE #barebox #OpenSource #Pengutronix

Marc Kleine-Budde Jan 23, 2025

OH: the "O" in #optee stands for open
#embedded_linux

Cloud Manul Apr 16, 2024

Is somebody aware of any way to get an updated #OPTEE for #RK3588 ? I wrote to #Rockchip but did not get an answer. The OSS version of OP-TEE does not seem to have the necessary headers/definitions for that chip.

Jarkko Sakkinen Nov 15, 2023

If I did not have anything else to do I would reimplement this in Rust: https://github.com/microsoft/ms-tpm-20-ref. The code quality is not great in the original and it is not particularly complicated thing to do just time consuming. Looking how bad code quality is, I wonder why e.g. #OPTEE implementation is based on it (if I got this wrong please correct, 99% sure it is).

#tpm #arm #tee

GitHub - microsoft/ms-tpm-20-ref: Reference implementation of the TCG Trusted Platform Module 2.0 specification.

Reference implementation of the TCG Trusted Platform Module 2.0 specification. - GitHub - microsoft/ms-tpm-20-ref: Reference implementation of the TCG Trusted Platform Module 2.0 specification.

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