Unix, Linux, DevOps , Cloud computing and BigData Knowledge-Base

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Cook: security things in Linux v5.2

Over on his blog, Kees Cook runs through the security changes that came in Linux 5.2. “While the SLUB and SLAB allocator freelists have been randomized for a while now, the overarching page allocator itself wasn’t. This meant that anything doing allocation outside of the kmem_cache/kmalloc() would...

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I found your data. Its for sale.

Can you believe that as many as 4 million people have Web browser extensions that sell their every click? And thats just the tip of the iceberg. Continue Reading — I found your data. Its for sale.

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[$] Kernel analysis with bpftrace

At the 2019 Linux Storage, Filesystem, and Memory-Management Summit (LSFMM) Brendan Gregg gave a keynote on BPF observability that included a kernel issue he had debugged on Netflix production servers using bpftrace. In this article, he provides a crash course on bpftrace for kernel developers—to help...

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