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Tag: kernel

  • Hacker News: Linux kernel could cut energy use in data centres by up to 30 per cent

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    Kurt Seifried
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    Source URL: https://cs.uwaterloo.ca/news/cheriton-school-computer-science-researchers-update-linux Source: Hacker News Title: Linux kernel could cut energy use in data centres by up to 30 per cent Feedly Summary: Comments AI Summary and Description: Yes Summary: Researchers have enhanced the Linux kernel to improve data center energy efficiency significantly, potentially reducing consumption by up to 30%. This innovation can have…

  • Slashdot: Could New Linux Code Cut Data Center Energy Use By 30%?

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    Kurt Seifried
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    Source URL: https://hardware.slashdot.org/story/25/01/25/2111225/could-new-linux-code-cut-data-center-energy-use-by-30?utm_source=rss1.0mainlinkanon&utm_medium=feed Source: Slashdot Title: Could New Linux Code Cut Data Center Energy Use By 30%? Feedly Summary: AI Summary and Description: Yes Summary: Researchers at the University of Waterloo have developed an energy-efficient code modification for Linux that could significantly reduce data center energy consumption. Their innovation focuses on optimizing network traffic processing,…

  • Hacker News: Susctl CVE-2024-54507: A particularly ‘sus’ sysctl in the XNU kernel

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    Kurt Seifried
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    Source URL: https://jprx.io/cve-2024-54507/ Source: Hacker News Title: Susctl CVE-2024-54507: A particularly ‘sus’ sysctl in the XNU kernel Feedly Summary: Comments AI Summary and Description: Yes Summary: The text discusses a security vulnerability (CVE-2024-54507) within the XNU kernel related to the sysctl interface, leading to an out-of-bounds read. This provides an important case study for software…

  • Hacker News: Reverse Engineering Call of Duty Anti-Cheat

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    Kurt Seifried
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    Source URL: https://ssno.cc/posts/reversing-tac-1-4-2025/ Source: Hacker News Title: Reverse Engineering Call of Duty Anti-Cheat Feedly Summary: Comments AI Summary and Description: Yes **Summary:** The text presents an in-depth analysis of the user-mode anti-cheat mechanism employed in the video game “Call of Duty: Black Ops Cold War,” referred to as TAC (Treyarch Anti-Cheat). It details the obfuscation…

  • Hacker News: Bypassing disk encryption on systems with automatic TPM2 unlock

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    Kurt Seifried
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    Source URL: https://oddlama.org/blog/bypassing-disk-encryption-with-tpm2-unlock/ Source: Hacker News Title: Bypassing disk encryption on systems with automatic TPM2 unlock Feedly Summary: Comments AI Summary and Description: Yes **Summary:** The text delves into the security implications of using Trusted Platform Module (TPM2) for automatic disk unlocking in Linux systems. It uncovers vulnerabilities present in popular implementations (specifically with clevis…

  • Alerts: CISA Adds Four Known Exploited Vulnerabilities to Catalog

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    Kurt Seifried
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    Source URL: https://www.cisa.gov/news-events/alerts/2025/01/14/cisa-adds-four-known-exploited-vulnerabilities-catalog Source: Alerts Title: CISA Adds Four Known Exploited Vulnerabilities to Catalog Feedly Summary: CISA has added four vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. CVE-2024-55591 Fortinet FortiOS Authorization Bypass Vulnerability CVE-2025-21333 Microsoft Windows Hyper-V NT Kernel Integration VSP Heap-based Buffer Overflow Vulnerability CVE-2025-21334 Microsoft Windows Hyper-V NT…

  • Microsoft Security Blog: Analyzing CVE-2024-44243, a macOS System Integrity Protection bypass through kernel extensions

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    Kurt Seifried
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    Source URL: https://www.microsoft.com/en-us/security/blog/2025/01/13/analyzing-cve-2024-44243-a-macos-system-integrity-protection-bypass-through-kernel-extensions/ Source: Microsoft Security Blog Title: Analyzing CVE-2024-44243, a macOS System Integrity Protection bypass through kernel extensions Feedly Summary: Microsoft discovered a macOS vulnerability allowing attackers to bypass System Integrity Protection (SIP) by loading third party kernel extensions, which could lead to serious consequences, such as allowing attackers to install rootkits, create persistent…