FindIt says that this CL (https://pdfium.googlesource.com/pdfium.git/+/0004f29bf6ee3c6060a272c79f14993e92e053c7) might cause the crash. I wonder if you could take a look. Thank you.

This issue is a security regression. If you are not able to fix this quickly, please revert the change that introduced it.

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ClusterFuzz has detected this issue as fixed in range 460866:460935.

Detailed report: https://clusterfuzz.com/testcase?key=5624277874507776

Fuzzer: ifratric_pdf_generic
Job Type: linux_msan_pdfium
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  CFX_Renderer::CompositeSpanARGB
  CFX_AggDeviceDriver::RenderRasterizer
  CFX_AggDeviceDriver::DrawPath
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_pdfium&range=460163:460191
Fixed: https://clusterfuzz.com/revisions?job=linux_msan_pdfium&range=460866:460935

Reproducer Testcase: https://clusterfuzz.com/download/AMIfv94KU6G9tZxRTSzW1Hgmr-i4EodFsi2JeiNJoerRM6OQTywDdzHgBR0kVRx7VHHO-33uQhKOwYwNfqVs4fgSEbbjlziYY3VRElNcOlHxJ-0EkjdgaWTlCiwFDnm2vEQg8XLivsDXvnTaqgYeO-iSRGtBUQxp2geP9hNaDd7cqTc0APfEoyk3Ks0vsVHlj-bCZj_NO7HioMIaMx22PltnNmvQir7AT57kuw7KWLw3oO1Xw-2dj170lxIwVe7fKDbCIHHqyxYQoIl-ze8hN3qvFrAK375mclvc4YosHDaP0VRw0HbPyQ4dCGrxjHTaOGCNi3hgrGfPI5JT6_OLysaCz1tGqOEcFOHOJmWTAhOSuSedjrkO6GfNruOlA9c8v60AvX6XpvP2pYjqirf0f_J-lKYLtrOZdg?testcase_id=5624277874507776


See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.

ClusterFuzz testcase 5624277874507776 is verified as fixed, so closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.

This bug has been closed for more than 14 weeks. Removing security view restrictions.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot