tree a6a824378a93b91f6761dbf257805c458f8d558e
parent f57843cb20ee8d7c38513d9a26ff5df54d796c7a
author Alan Screen <awscreen@chromium.org> 1569455764 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1569455764 +0000

[lcms] Clusterfuzz - avoid integer overflow

Clusterfuzz found an integer overflow from some internal calculations.
Casting the types to 64 bit and clamping intermediate values during the
internal calculations avoids such an overflow.

Bug: chromium:997463
Change-Id: I9915d4eaf87b770d2312cf8e4140f05135db708d
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/60030
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>