[Bug 55310] New: tools/widl/hash.c:714:13: runtime error: store to misaligned address 0xffda6583 for type 'unsigned int', which requires 4 byte alignment (UndefinedBehaviorSanitizer)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=55310

            Bug ID: 55310
           Summary: tools/widl/hash.c:714:13: runtime error: store to
                    misaligned address 0xffda6583 for type 'unsigned int',
                    which requires 4 byte alignment
                    (UndefinedBehaviorSanitizer)
           Product: Wine
           Version: 8.13
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Keywords: download, source
          Severity: normal
          Priority: P2
         Component: tools
          Assignee: wine-bugs(a)winehq.org
          Reporter: austinenglish(a)gmail.com
      Distribution: Debian

Created attachment 74909
  --> https://bugs.winehq.org/attachment.cgi?id=74909
build log

For this issue, just recompiling tools/widl is enough to see the issue:
./configure && make -j12
cd tools/widl
make clean
make CFLAGS="-fsanitize=undefined" LDFLAGS="-fsanitize=undefined"

tools/widl/widl -o include/windows.foundation.h -m32 --nostdinc -Ldlls/\*
-Iinclude -Iinclude -D__WINESRC__ \
  include/windows.foundation.idl
tools/widl/hash.c:714:13: runtime error: store to misaligned address 0xffe6aac6
for type 'unsigned int', which requires 4 byte alignment
0xffe6aac6: note: pointer points here
 00 00 00 00 00 00  00 00 00 00 8c ab e6 ff  00 e0 7a 56 20 40 7f 57  f8 aa e6
ff 00 e0 7a 56  30 00
             ^ 
tools/widl/hash.c:715:13: runtime error: store to misaligned address 0xffe6aaca
for type 'unsigned int', which requires 4 byte alignment
0xffe6aaca: note: pointer points here
 00 00  00 00 00 00 8c ab e6 ff  00 e0 7a 56 20 40 7f 57  f8 aa e6 ff 00 e0 7a
56  30 00 00 00 8d 89
              ^ 

There are 62 total occurrences.

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