dang i didn't realize variable length arrays were such a huge issue in the kernelhttps://twitter.com/kees_cook/status/1031611646093881344 …
Replying to @sudocurse
Replacing VLAs can be a bit tricky. One great analysis done by a driver author really shows that they're more than just a security problem; they're slow, too. Using a fixed-size stack array (to remove the VLA) in lib/bch raised throughput by almost 13%: https://git.kernel.org/linus/02361bc7788852f33dd0a05235a52b9ccf097916 …
12:05 PM - 20 Aug 2018
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