Out-of-bounds read and write in the glibc's qsort()

• sort-research-rs

  47 291 9.0 Rust

  Test and benchmark suite for sort implementations.

See also https://github.com/Voultapher/sort-research-rs/blob/main/wri.... Discussion at https://news.ycombinator.com/item?id=37781612

• fancy-memcmp

  2 3 3.5 Assembly

  small, fast memcmp

Hrm—that's another case of missing isel from gcc/clang (c.f. <https://pp.ipd.kit.edu/firm/selgen>)—my implementation (<https://github.com/moon-chilled/fancy-memcmp/blob/master/mem...>) does it in one less instruction. (An alternative is to skip the xors and do cmp/setcc/setcc/sub/movsx, which matches my approach on instruction count, but relies on good handling of partial renames, which is uarch-dependent. And I can never remember if anybody can eliminate movsx. Otoh it is non-destructive.)

• InfluxDB

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