sandsifter

s a n d s i f t e r : the x86 processor fuzzer Overview The sandsifter audits x86 processors for hidden instructions and hardware bugs, by systematically generating machine code to search through a processor's instruction set, and monitoring execution for anomalies. Sandsifter has uncovered secre...

sandsifter

s a n d s i f t e r : the x86 processor fuzzer Overview The sandsifter audits x86 processors for hidden instructions and hardware bugs, by systematically generating machine code to search through a processor's instruction set, and monitoring execution for anomalies. Sandsifter has uncovered secre...

Linux Distros Unpatched Vulnerability : CVE-2024-46718

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: drm/xe: Don't overmap identity VRAM mapping Overmapping the identity VRAM mapping is...

CVE-2024-46718

CVE-2024-46718 affects the Linux kernel DRM/xe identity VRAM mapping. The issue is overmapping the identity VRAM mapping, which could trigger hardware bugs on certain platforms. The fix uses 2M pages for the last unaligned (to 1G) VRAM chunk, with v2/v3 updates tightening page usage and checks (2...

CVE-2024-46718 drm/xe: Don't overmap identity VRAM mapping

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Don't overmap identity VRAM mapping Overmapping the identity VRAM mapping is triggering hardware bugs on certain platforms. Use 2M pages for the last unaligned to 1G VRAM chunk. v2: - Always use 2M pages for last chunk Fe...

CVE-2024-46718: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Don't overmap identity VRAM mapping Overmapping the identity VRAM mapping is triggering hardware bugs on certain platforms. Use 2M pages for the last unaligned to 1G VRAM chunk. v2: - Always use 2M pages for last chunk Fe...

The x86 Processor Fuzzer: sandsifter

Your computer is not yours. You may have shelled out thousands of dollars for it. It may be sitting right there on your desk. You may have carved your name deep into its side with a blowtorch and chisel. But it’s still not yours. Some vendors are building secret processor registers into your...

The Spectre of Chips on Meltdown

The news is rife with emerging details of Intel and other chip vulnerabilities and the hardware bugs that can potentially exploit them. While details are still developing and will likely continue to be uncovered in the days, weeks, and even months ahead, we will explore what is known to date...

OpteronMicrocode.txt

Topic: Opteron Exposed: Reverse Engineering AMD K8 Microcode Updates Name: Anonymous [email protected] 7/22/04 Opteron Exposed: Reverse Engineering AMD K8 Microcode Updates Summary This document details the procedure for performing microcode updates on the AMD K8 processors. It also gives background...