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Created an attachment (id=346) [details] sample code that crashes when tag names are changed to "Tag %d" When a client application uses the same names for its tags as libtiff itself would use in the Default Tag Auto-registration - that is "Tag %d" with field_tag as number - the lib will SIGSEGV on TIFFClose(). Possible solution: Make TIFFMergeFieldInfo() return an int that indicates if the passed array is acceptable or not and reject field names that collide with internal names. Otherwise find the code that relies on the field name to do something internally that should not be done if the field name was defined by a client application.
Bugzilla is no longer used for tracking libtiff issues. Remaining open tickets, such as this one, have been migrated to the libtiff GitLab instance at https://gitlab.com/libtiff/libtiff/issues . The migrated tickets have their summary prefixed with [BZ#XXXX] where XXXX is the initial Bugzilla issue number.
