cacheinfo

About this tag
The cacheinfo tag on WindowsForum.com covers discussions about CPU cache hierarchy information, primarily in the context of Linux kernel security and stability. A key topic is CVE-2023-53254, a vulnerability in the kernel's cacheinfo shared_cpu_map that can cause slab out-of-bounds memory access on systems with non-uniform cache hierarchies. The tag includes threads about patching this vulnerability, verifying fixes, and understanding the impact on system correctness. While the tag is Linux-focused, it may also relate to broader hardware and performance topics for Windows users interested in CPU cache behavior.

  1. Linux Kernel CVE-2023-53254 Fix: Safer Cacheinfo Shared CPU Map

    The Linux kernel fix for cacheinfo’s shared_cpu_map exposes a subtle but real threat vector that can lead to slab out‑of‑bounds memory access on systems where CPUs have non‑uniform cache hierarchies, and operators must treat CVE‑2023‑53254 as a high‑priority stability and correctness issue that...
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    • cache topology cacheinfo cve 2023 53254 linux kernel
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    • Forum: Security Alerts