tree 06402ffd9e3264880ce75335c7745395cee487ce
parent c9c2180c8381c6acd87cff5c7a453e326657fe41
author Tom Sepez <tsepez@chromium.org> 1661803664 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1661803664 +0000

Fix bad probe on span assignment operator.

Empty spans with data pointers one past the end of an object are
allowed, but we can't allow UnownedPtr<T> to probe for validity of
this location during an assignment for these spans.

See e.g. https://pdfium-review.googlesource.com/c/pdfium/+/96971
for an example of how this goes wrong.

Change-Id: I7ab60800a4d1584aeeec8343362337cb6c137672
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/97031
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>