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| author |   martynas <martynas@openbsd.org> | 2014-05-06 23:22:33 +0000 |
|---|---|---|
| committer | martynas <martynas@openbsd.org> | 2014-05-06 23:22:33 +0000 |
| commit | 121b8252e78edb2a35c749786359b07e61fda24a (patch) | |
| tree | 94c4fb1ee7ea3bdb1979cb06755bc3c875363e67 /lib/libc/regex/regexec.c | |
| parent | better alloc idiom (diff) | |
| download | wireguard-openbsd-121b8252e78edb2a35c749786359b07e61fda24a.tar.xz wireguard-openbsd-121b8252e78edb2a35c749786359b07e61fda24a.zip | |
Introduce -fstack-shuffle, which randomizes local stack variables.
This will make the environment more hostile and help detect bugs
that depend on overrunning one variable into another, with almost
no performance cost.
Discussed with Theo at m2k14 hackathon. "oh god yes" tedu@, "oh nice" djm@
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