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Vue normale

AI Helping To Improve Linux's AMD Zen CPU Microarchitecture Detection

22 octobre 2026 à 19:21
A request for comments (RFC) was sent out last night on the Linux kernel mailing list in seeking to clean-up the AMD Zen microarchitecture detection within the kernel. This is for enhancing the kernel where there are code paths specific to a certain generation of AMD Zen processors or select generations such as Zen 3 through Zen 5 CPUs. AI was leveraged in helping to clean-up this AMD Zen code in the Linux kernel...

x86 Kernel Shadow Stacks Being Worked On For Linux As Powerful Control Flow Protection

22 octobre 2026 à 13:22
Linux user-space for several years had shadow stack support for hardware-enforced control-flow enforcement in defending against return oriented programming (ROP) attacks. Intel Tigerlake and newer CPUs or AMD Zen 3 and newer have the necessary hardware shadow stacks support. Shadow stacks have been effective for helping user-space software fend ROP attacks while now there is new work toward bringing shadow stack support for kernel space on Linux...

Several Linux Kernel Vulnerabilities Accidentally Posted To Public Kernel Mailing List

22 octobre 2026 à 10:05
Seemingly as an accident, overnight several new Linux kernel vulnerability reports were posted to the public Linux kernel mailing list rather than the private security mailing list. The vulnerabilities have yet to be patched on mainline but at least in some cases there are patches undergoing testing or queued in "-next" branches. The CVSS scores are as high as 9.0...

Meta Makes Improvements To Kernfs Scalability With Linux 7.4

21 octobre 2026 à 09:54
Kernfs as the functions/frameworks used for creating pseudo file-systems on Linux like sysfs and configfs have seen some nice scalability work carried out by Meta. After Meta engineers discovered some system daemons getting stuck for minutes on their massive fleet of servers, they uncovered some scalability bottlenecks within Kernfs that now look to be resolved for Linux 7.4...
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