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| author | Tom Sepez <tsepez@chromium.org> | 2017-09-08 10:18:37 -0700 |
|---|---|---|
| committer | Chromium commit bot <commit-bot@chromium.org> | 2017-09-08 17:37:10 +0000 |
| commit | e8b3e0cdcea319abf82639edb5e074ff94c4d66c (patch) | |
| tree | ef41a1e8955acd12d92d1635b5e35ff9914efb3d /xfa/fwl/cfwl_barcode.h | |
| parent | 808b52ac76bb5d9ee3e6a8371ddab25f62c8ed51 (diff) | |
| download | pdfium-e8b3e0cdcea319abf82639edb5e074ff94c4d66c.tar.xz | |
Fix one-second spin in fx_random.cpp
Take seed generation logic from base's address_space_randomization.cc.
One small tweak is to avoid the bottom three bits of a stack address and
invert, to make leaking ASLR more difficult along the lines of the
freelist masking in base's partition allocator. Another tweak is to
mix in some more time-based information. Another tweak is to add in
the times called so that rapid successive calls return different results.
Bug: pdfium:891
Change-Id: I14238da15cee9c8d4ca72d79e4f7fbb26997c619
Reviewed-on: https://pdfium-review.googlesource.com/13490
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Diffstat (limited to 'xfa/fwl/cfwl_barcode.h')
0 files changed, 0 insertions, 0 deletions