tree bb759802133dbd76757bde379e45710838528110
parent edf56be438e4f36461c689bb6503ccc3ea2daf96
author Tom Sepez <tsepez@chromium.org> 1641343438 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1641343438 +0000

Avoid CHECK() in CFXJSE_FormCalcContext::Stuff()

Strict ordering of clamp() args may not be preserved with a zero-length
string. Then beware of start + count overflows.

-- Improve test coverage.

Bug: chromium:1284171
Change-Id: I4122aa2f77863c0b6c9e0021189fad57b7b000d2
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/88870
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>