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Linux Will Stop Randomizing Per-CPU Entry Area When KASLR Is Not Active

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  • Linux Will Stop Randomizing Per-CPU Entry Area When KASLR Is Not Active

    Phoronix: Linux Will Stop Randomizing Per-CPU Entry Area When KASLR Is Not Active

    With the Linux 6.2 release kernel developers addressed "a tasty target for attackers" after it was realized that the per-CPU entry data was not being randomized, even in the presence of Kernel Address Space Layout Randomization (KASLR). The per-CPU entry area randomization has been present since Linux 6.3 but then was realized it's being activated even if KASLR was disabled, so now that is changing to avoid possible confusion...

    Phoronix, Linux Hardware Reviews, Linux hardware benchmarks, Linux server benchmarks, Linux benchmarking, Desktop Linux, Linux performance, Open Source graphics, Linux How To, Ubuntu benchmarks, Ubuntu hardware, Phoronix Test Suite

  • #2
    New benchmarks wen?

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    • #3
      I would be interested in a small benchmark with nokaslr boot option against normal operation. Has this any relevant performance implication?
      Here is an old one but if I understand this article correctly that was with the CPU randomization enabled. https://www.phoronix.com/review/kaslr-fgkaslr-benchmark

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