[Bug 59913] New: msvcrt: _aligned_offset_realloc alignment validation failure crashes PCSX2 nightly

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=59913

            Bug ID: 59913
           Summary: msvcrt: _aligned_offset_realloc alignment validation
                    failure crashes PCSX2 nightly
           Product: Wine
           Version: 11.11
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: msvcrt
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 81242
  --> http://bugs.winehq.org/attachment.cgi?id=81242
Removing this check from _aligned_offset_realloc prevents the function from
returning NULL when alignment/offset parameters are evaluated, which resolves
the crash completely.

When emulating games on PCSX2 nightly, the emulator crashes with the following
assertion failure:
"Assertion failed in function HashBucket::add... Failed to allocate HashBucket
Chain".   

The crash is triggered by _aligned_offset_realloc returning NULL and setting
errno to  EINVAL in dlls/msvcrt/heap.c. Specifically, the following sanity
check fails:

    if (memblock != ALIGN_PTR(*saved, alignment, offset))                       
    {                                                                           
        *_errno() = EINVAL;                                                     
        return NULL;                                                            
    }                                                                           

The application (or one of its libraries like Qt/TBB) reallocates aligned
memory, but this strict verification fails, causing memory allocation functions
to fail and abort the
process.

Steps to reproduce:

1. Run a modern Qt build of PCSX2 (e.g., v2.7.419).
2. Launch any game.
3. The emulator crashes immediately or shortly after starting due to the
HashBucket allocation failure.

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[Bug 59913] msvcrt: _aligned_offset_realloc alignment validation failure crashes PCSX2 nightly

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=59913

Bartosz <[e-mail]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]

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[Bug 59913] msvcrt: _aligned_offset_realloc alignment validation failure crashes PCSX2 nightly

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=59913

Austin English <[e-mail]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |download, patch

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[Bug 59913] msvcrt: _aligned_offset_realloc alignment validation failure crashes PCSX2 nightly

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=59913

brandow <[e-mail]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED

--- Comment #1 from brandow <[e-mail]> ---
Following merge request
https://gitlab.winehq.org/wine/wine/-/merge_requests/11442, the issue affecting
both the BIOS and games has been resolved. The BIOS now boots successfully, and
games run without errors.

Marking as RESOLVED FIXED.

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[Bug 59913] msvcrt: _aligned_offset_realloc alignment validation failure crashes PCSX2 nightly

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=59913

Alexandre Julliard <[e-mail]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #2 from Alexandre Julliard <[e-mail]> ---
Closing bugs fixed in 11.14.

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