[Git][wine/wine][master] msctf: Fix read of invalid memory in SINK_FOR_EACH.

[Alexandre Julliard (＠julliard)]

Alexandre Julliard pushed to branch master at wine / wine

Commits:
2329622b by Yuxuan Shui at 2025-06-03T17:42:13+02:00
msctf: Fix read of invalid memory in SINK_FOR_EACH.

If the list being iterated over is empty, LIST_ENTRY(cursor,Sink,entry) does not actually point to a
Sink, and therefore reading `->interfaces.p##type` from it is invalid. This access should only happen
after the `(cursor) != (list)` check.

- - - - -

1 changed file:

- dlls/msctf/msctf_internal.h

View it on GitLab: https://gitlab.winehq.org/wine/wine/-/commit/2329622b3047ed7622b64f0f50a8d3c...