[Git][wine/wine][master] dmime: Fix use-after-free after performance_CloseDown.

[Alexandre Julliard (＠julliard)]

Alexandre Julliard pushed to branch master at wine / wine

Commits:
c1a85bc1 by Yuxuan Shui at 2025-08-27T17:02:59+02:00
dmime: Fix use-after-free after performance_CloseDown.

IDirectMusicPerformance8 holds references to music ports in channel_blocks. These ports must outlive
their parent IDirectMusic, because in synth_port_Release, they remove themselves from their parent.

performance_CloseDown releases the IDirectMusic, but doesn't release its ports. So when these ports
are later released in performance_Release, they uses the already freed IDirectMusic.

Found by ASan.

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1 changed file:

- dlls/dmime/performance.c

View it on GitLab: https://gitlab.winehq.org/wine/wine/-/commit/c1a85bc1eae46cd2029fd8d49f51361...