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segfault in glamor_composite_clipped_region() (xorg-server-1.19.3, Fedora 26)

Submitted by Fabrice Bellet @bellet

Assigned to Xorg Project Team

Link to original bug (#101894)

Description

Created attachment 132862 gdb backtrace of the crash

This is a crash happening on a Fedora 26, with an AMD card, while running eog on a large file. It seems that the case where source, mask and source_pixmap are null (from the definition of the macro COMPOSITE_REGION) is not handled properly in function glamor_composite_clipped_region().

Attachment 132862, "gdb backtrace of the crash":
gdb.txt

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