[reactos] 01/01: [SHLWAPI] Fix SHCreateMemStream corner case (#6224)

[Katayama Hirofumi MZ]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=5d9f622eeb6859ddfdd236...

commit 5d9f622eeb6859ddfdd236693dbd96b868d5f612
Author:     Katayama Hirofumi MZ [e-mail]
AuthorDate: Mon Dec 25 08:22:08 2023 +0900
Commit:     GitHub [e-mail]
CommitDate: Mon Dec 25 08:22:08 2023 +0900

[SHLWAPI] Fix SHCreateMemStream corner case (#6224)

When the system run out of memory,
    check NULL and fail elegantly if
    necessary.
    This doesn't fix CORE-19229 but I
    think it needs a fix.
    CORE-19229
---
 dll/win32/shlwapi/regstream.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dll/win32/shlwapi/regstream.c b/dll/win32/shlwapi/regstream.c
index 63615d3d9cf..39889705014 100644
--- a/dll/win32/shlwapi/regstream.c
+++ b/dll/win32/shlwapi/regstream.c
@@ -669,6 +669,10 @@ IStream * WINAPI SHCreateMemStream(const BYTE *lpbData, UINT dwDataLen)
     if (!strm)
       HeapFree(GetProcessHeap(), 0, lpbDup);
   }
+#ifdef __REACTOS__
+  if (!strm)
+    return NULL;
+#endif
   return &strm->IStream_iface;
 }