tree e44013c5b8f21cdea0f662e8a7bcc5bb1b09732c
parent 28b5823807a6baecf855d073946f369e095da081
author Lei Zhang <thestig@chromium.org> 1582638635 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1582638635 +0000

Avoid nullptr deference in CPDFSDK_PageView::GetAnnotByXFAWidget().

When a CPDFSDK_Annot is not a CPDFXFA_Widget, ToXFAWidget() returns
nullptr. Handle this case. This is the secendary problem for the bug in
question. Other CLs, as noted on the bug, already fixed the main memory
error.

Bug: chromium:949913
Change-Id: I6307b5449b0229ac2550bb2a0930ff24b398c98e
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/66910
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>