---
id: 1448
title: "A deep dive into Linux’s new mseal syscall"
source_domain: blog.trailofbits.com
source_url: "https://blog.trailofbits.com/2024/10/25/a-deep-dive-into-linuxs-new-mseal-syscall/"
published_at: "2024-10-25 13:00"
tags: ["linux-kernel", "v8", "hardening", "mseal", "memory-sealing", "exploit-mitigation"]
phying_url: "https://phying.com/item/1448"
lang: en
---

# A deep dive into Linux’s new mseal syscall

## Summary

A deep dive into Linux 6.10's mseal syscall, explaining how memory sealing blocks runtime tampering with VMA permissions and unmapping-based data-only exploits, inspired by Chrome's V8 CFI work.

## Intelligence Metadata

- **Sources:** blog.trailofbits.com
- **Published:** 2024-10-25 13:00
- **Original:** https://blog.trailofbits.com/2024/10/25/a-deep-dive-into-linuxs-new-mseal-syscall/
- **Phying News:** https://phying.com/item/1448