Presentations

Presentations 2026 HITCON 2026 - 21st - 22nd August 2026 Pwn2OwNothing: When a KVM Full-Chain Escapes to Emptiness by PAN Zhenpeng, Billy JHENG Bing Jhong, Bruce CHEN & SHI Weiming 2025 CodeBlue 2025 - 18th to 19th November 2025 AI Accelerated Exploiting: Compromising MTE Enabled Pixel from DSP...

slides

slides A collection of slides. 2025 A tale of challenging MTE: Rooting Google Pixel with kernel MTE enabled in one shot Conference: POC 2025 2024 Simple bug but not easy exploit: Rooting Android devices in one shot Conference: Cansecwest 2024 Almost same with POC 2023, except for MTE 2023 Simple...

Should Your Database Systems Use Hardware-Assisted Memory Safety Extensions in Production?

Database systems are predominantly developed in unsafe languages e.g., C/C++ to meet performance requirements through low-level memory management, yet this reliance renders them prone to systemic memory-safety issues that compromise reliability, consistency, security, and durability. Through an...

SUSE CVE-2026-89981

In the Linux kernel, the following vulnerability has been resolved: arm64: Don't read GMIDEL1 when MTE is disabled cpuinfostorecpu gates the GMIDEL1 read on the raw IDAA64PFR1EL1, so it reads the register even when the kernel has disabled MTE CONFIGARM64MTE=n or arm64.nomte. KVM sets HCREL2.TID5 ...

SUSE CVE-2026-90094

In the Linux kernel, the following vulnerability has been resolved: arm64: process: Fix context switching MTE store-only tag check SCTLREL1.TCSO0 is set when user opt-in for MTE store-only tag check mode. However, it is not part of SCTLRUSERMASK which imply that on context switch we never clear...

CVE-2026-90094

In the Linux kernel, the following vulnerability has been resolved: arm64: process: Fix context switching MTE store-only tag check SCTLREL1.TCSO0 is set when user opt-in for MTE store-only tag check mode. However, it is not part of SCTLRUSERMASK which imply that on context switch we never clear...

CVE-2026-90094

CVE-2026-90094 affects the Linux kernel on arm64 systems, specifically in the process context-switching path for MTE (Memory Tagging Extension) store-only tag check mode. When a user opts in to store-only tag check via SCTLR_EL1.TCSO0 , that flag was not included in SCTLR_USER_MASK , meaning it w...

CVE-2026-90094: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: arm64: process: Fix context switching MTE store-only tag check SCTLREL1.TCSO0 is set when user opt-in for MTE store-only tag check mode. However, it is not part of SCTLRUSERMASK which imply that on context switch we never clear...

PT-2026-94638

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the arm64 architecture during hibernation where the DAIF Driver, Asynchronous abort, IRQ, and FIQ state is not properly restored upon an error. Specifically, if the...

CVE-2026-89981 arm64: Don't read GMID_EL1 when MTE is disabled

In the Linux kernel, the following vulnerability has been resolved: arm64: Don't read GMIDEL1 when MTE is disabled cpuinfostorecpu gates the GMIDEL1 read on the raw IDAA64PFR1EL1, so it reads the register even when the kernel has disabled MTE CONFIGARM64MTE=n or arm64.nomte. KVM sets HCREL2.TID5 ...

CVE-2026-89981: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: arm64: Don't read GMIDEL1 when MTE is disabled cpuinfostorecpu gates the GMIDEL1 read on the raw IDAA64PFR1EL1, so it reads the register even when the kernel has disabled MTE CONFIGARM64MTE=n or arm64.nomte. KVM sets HCREL2.TID5 ...

CVE-2026-43499-aristotle-apk build-43

Aristotle ADB Enable A minimal Android app that turns on ADB on an au/KDDI Xiaomi "aristotle" XIG04, Android 12 whose developer options can't be reached, using a temporary root obtained from CVE-2026-43499. It is a device-owner tool in the same category as KingRoot: it roots your own phone to fli...

glibc security update

2.28-251.0.4.40 - Forward port of Oracle patches Reviewed-by: David Faust Oracle history: July-13-2026 Cupertino Miranda - 2.28-251.0.4.38 - Forward port of Oracle patches Reviewed-by: Jose E. Marchesi May-26-2026 Cupertino Miranda - 2.28-251.0.4.37 - Forward port of Oracle patches Reviewed-by:...

glibc security update

2.28-251.0.4.38 - Forward port of Oracle patches Reviewed-by: Jose E. Marchesi Oracle history: May-26-2026 Cupertino Miranda - 2.28-251.0.4.37 - Forward port of Oracle patches Reviewed-by: David Faust May-7-2026 Cupertino Miranda - 2.28-251.0.4.34 - Forward port of Oracle patches Reviewed-by: Jos...

glibc security update

2.28-251.0.4.31 - Forward port of Oracle patches Reviewed-by: Jose E. Marchesi Oracle history: February-24-2026 Cupertino Miranda - 2.28-251.0.4.27 - Fixed orabug 38834066 stpcpy MTE support Reviewed-by: Jose E. Marchesi December-8-2025 Cupertino Miranda - 2.28-251.0.3.27 - Forward port of Oracle...

SUSE CVE-2025-71110

In the Linux kernel, the following vulnerability has been resolved: mm/slub: reset KASAN tag in deferfree before accessing freed memory When CONFIGSLUBTINY is enabled, kfreenolock calls kasanslabfree before deferfree. On ARM64 with MTE Memory Tagging Extension, kasanslabfree poisons the memory an...

Linux Distros Unpatched Vulnerability : CVE-2025-71110

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: mm/slub: reset KASAN tag in deferfree before accessing freed memory When CONFIGSLUBTINY is...

CVE-2025-71110: Use After Free

In the Linux kernel, the following vulnerability has been resolved: mm/slub: reset KASAN tag in deferfree before accessing freed memory When CONFIGSLUBTINY is enabled, kfreenolock calls kasanslabfree before deferfree. On ARM64 with MTE Memory Tagging Extension, kasanslabfree poisons the memory an...

EUVD-2025-203634

In the Linux kernel, the following vulnerability has been resolved: arm64: mte: Do not warn if the page is already tagged in copyhighpage The arm64 copyhighpage assumes that the destination page is newly allocated and not MTE-tagged PGmtetagged unset and warns accordingly. However, following comm...

Linux Distros Unpatched Vulnerability : CVE-2025-40353

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - arm64: mte: Do not warn if the page is already tagged in copyhighpage The arm64 copyhighpage assumes that the destination page is newly allocated and not...