The current code uses an unreffed `TMSourceFile->short_name` as the key into `source_file_map`. With Geany itself this is no problem as the `TMSourceFiles` are always destroyed after their removal from the hash table.

However, if a plugin adds 2 different files to the TM using ``` tm_workspace_add_source_file(file1); tm_workspace_add_source_file(file2); ``` that have a different path but the same file name, such as ``` /A/B/myfile.c /C/D/myfile.c ``` and at a later point removes them using something like ``` tm_workspace_remove_source_file(file1); tm_source_file_free(file1); tm_workspace_remove_source_file(file2); tm_source_file_free(file2); ``` the ``` tm_source_file_free(file1); ``` call deallocates the key in the hash table which is now an invalid pointer and the subsequent ``` tm_workspace_remove_source_file(file2); ``` crashes the plugin.

While it would be possible to solve this crash at the plugin level by reordering the operations such as ``` tm_workspace_remove_source_file(file1); tm_workspace_remove_source_file(file2); tm_source_file_free(file1); tm_source_file_free(file2); ``` this is not obvious from the plugin's perspective which doesn't know Geany's internals so better to solve it at Geany's level by using a g_strdupped value as the key.

This problem currently happens with the ProjectOrganizer plugin. You can view, comment on, or merge this pull request online at:

https://github.com/geany/geany/pull/3443

-- Commit Summary --

* Prevent possible crash when using tm_workspace API by plugins

-- File Changes --

M src/tagmanager/tm_workspace.c (4)

-- Patch Links --

https://github.com/geany/geany/pull/3443.patch https://github.com/geany/geany/pull/3443.diff