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[PATCH v5 0/2] MR10324: win32u: Fix deadlock when setting hdc_src to the window's self DC.
by Zhao Yi (＠Zhaoyi) April 2, 2026

April 2, 2026

Supersed !9180 and !9177 When hdc_src is the window's self DC, Within the NtUserUpdateLayeredWindow function, there exists the following call sequence: window_surface_lock()-\>NtGdiAlphaBlend()-\>window_surface_unlock(). However, the implementation of the NtGdiAlphaBlend() function calls the windrv_GetImage() function, which internally invokes lock_surface() and unlock_surface(). In this situation, window_surface_lock() is called first to acquire a lock. When lock_surface() is subsequently called to acquire the same lock, the initial lock has not yet been released, ultimately resulting in a deadlock. -- v5: win32u/tests: Add tests for hdc_src is window's self dc when calling UpdateLayeredWindow. win32u: Fix deadlock when setting hdc_src to the window's self DC. https://gitlab.winehq.org/wine/wine/-/merge_requests/10324

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[PATCH v9 0/1] MR10405: vbscript: Return proper error for undefined variables with Option Explicit.
by Francis De Brabandere (＠francisdb) April 2, 2026

April 2, 2026

When Option Explicit is set and an undefined variable is used, return VBS error 500 (Variable is undefined) with the variable name in the description, matching Windows behavior. Previously Wine returned E_FAIL with no description. -- v9: vbscript: Return proper error for undefined variables with Option Explicit. https://gitlab.winehq.org/wine/wine/-/merge_requests/10405

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[PATCH v12 0/3] MR10460: msvcrt: Add support for %Z printf specifier.
by Trung Nguyen (＠trungnt2910) April 2, 2026

April 2, 2026

This specifier allows printing the `UNICODE_STRING` and `ANSI_STRING` structures. It is useful for running unit tests for kernel mode or shared components on WINE. Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=59563 -- v12: msvcrt: Apply suggestions https://gitlab.winehq.org/wine/wine/-/merge_requests/10460

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[PATCH 0/1] MR10527: png: Import upstream release 1.6.55.
by Daniel Lehman (＠dlehman25) April 2, 2026

April 2, 2026

CVE-2026-25646 -- https://gitlab.winehq.org/wine/wine/-/merge_requests/10527

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[PATCH v4 0/2] MR10324: win32u: Fix deadlock when setting hdc_src to the window's self DC.
by Zhao Yi (＠Zhaoyi) April 2, 2026

April 2, 2026

Supersed !9180 and !9177 When hdc_src is the window's self DC, Within the NtUserUpdateLayeredWindow function, there exists the following call sequence: window_surface_lock()-\>NtGdiAlphaBlend()-\>window_surface_unlock(). However, the implementation of the NtGdiAlphaBlend() function calls the windrv_GetImage() function, which internally invokes lock_surface() and unlock_surface(). In this situation, window_surface_lock() is called first to acquire a lock. When lock_surface() is subsequently called to acquire the same lock, the initial lock has not yet been released, ultimately resulting in a deadlock. -- v4: win32u/tests: Add tests for hdc_src is window's self dc when calling UpdateLayeredWindow. win32u: Fix deadlock when setting hdc_src to the window's self DC. https://gitlab.winehq.org/wine/wine/-/merge_requests/10324

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[PATCH v11 0/2] MR10460: msvcrt: Add support for %Z printf specifier.
by Trung Nguyen (＠trungnt2910) April 2, 2026

April 2, 2026

This specifier allows printing the `UNICODE_STRING` and `ANSI_STRING` structures. It is useful for running unit tests for kernel mode or shared components on WINE. Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=59563 -- v11: msvcrt/tests: Add tests for %Z printf specifier. msvcrt: Add support for %Z printf specifier. https://gitlab.winehq.org/wine/wine/-/merge_requests/10460

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Re: [PATCH v5 0/2] MR7696: mf: Specify the multithreaded queue for timer callbacks.
by Conor McCarthy (＠cmccarthy) April 2, 2026

April 2, 2026

On Thu Apr 2 00:09:22 2026 +0000, Nikolay Sivov wrote: > > I made a test which shows Windows delivering samples from two > different threads, which implies a multithreaded queue. The test is > probably not suitable for upstream because multithreaded queues respond > to load, and a system with sufficient performance may use one thread. > Was this test for the sample grabber? > For the session documentation implies that it's normal to have a queue > "per-branch" whatever that means for transforms with multiple > inputs/outputs. We could still enable MT like you did. It used a test sink for audio and either a test sink or the sample grabber for video. In both cases threading was not split between audio and video. Sample delivery could come from either thread. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/7696#note_134738

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[PATCH v4 0/5] MR9314: mf/session: Shut down all topologies on session shutdown.
by Conor McCarthy (＠cmccarthy) April 1, 2026

April 1, 2026

-- v4: mf/session: Shut down all topologies on session shutdown. mf/session: Ensure the session object is shut down on release. mf/tests: Add tests for sample grabber sink shutdown. mf/tests: Check for sample grabber sink shutdown. mf/tests: Introduce a helper for creating an activated media sink. https://gitlab.winehq.org/wine/wine/-/merge_requests/9314

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[PATCH v45 0/1] MR10192: Draft: kernelbase: Handle extended length path prefix in GetLongPathNameW
by Vishnunithyasoundhar S (＠svishnunithyasoundhar) April 1, 2026

April 1, 2026

``` Support the \\?\ prefix by skipping it during path resolution while preserving it in the output. Added specific handling for extended UNC paths (\\?\UNC\) to mirror standard UNC behavior, ensuring these paths are treated as network shares and not local devices. Some paths that use the extended length path were filtered out as UNC paths - but not all of them are UNC. There can be UNC path that use extended length path but not all extended length paths are UNC paths. ``` Signed-off-by: Vishnunithyasoundhar S svishnunithyasoundhar(a)gmail.com -- v45: kernelbase: Handle extended length path prefix in GetLongPathNameW https://gitlab.winehq.org/wine/wine/-/merge_requests/10192

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Re: [PATCH v5 0/2] MR7696: mf: Specify the multithreaded queue for timer callbacks. - approved
by Alexandre Julliard (＠julliard) April 1, 2026

April 1, 2026

This merge request was approved by Alexandre Julliard. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/7696

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