https://git.reactos.org/?p=reactos.git;a=commitdiff;h=7cb411e88fa68419c2cce8a3eb544945bd4af095
commit 7cb411e88fa68419c2cce8a3eb544945bd4af095 Author: Hermès Bélusca-Maïto <[email protected]> AuthorDate: Sat Jun 9 15:37:54 2018 +0200 Commit: Hermès Bélusca-Maïto <[email protected]> CommitDate: Sat Jun 9 15:37:54 2018 +0200 [USERSRV] HardError: Free WindowTitleU buffer only if we really allocated it. --- win32ss/user/winsrv/usersrv/harderror.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/win32ss/user/winsrv/usersrv/harderror.c b/win32ss/user/winsrv/usersrv/harderror.c index 7cc3a67ca4..85ef9fe23d 100644 --- a/win32ss/user/winsrv/usersrv/harderror.c +++ b/win32ss/user/winsrv/usersrv/harderror.c @@ -641,8 +641,10 @@ UserpFormatMessages( CaptionStringU->Length = (USHORT)(wcslen(CaptionStringU->Buffer) * sizeof(WCHAR)); /* Free the strings if needed */ - if (WindowTitleU.Buffer) RtlFreeUnicodeString(&WindowTitleU); - if (hProcess) RtlFreeUnicodeString(&FileNameU); + if (WindowTitleU.Buffer && (WindowTitleU.MaximumLength != 0)) + RtlFreeUnicodeString(&WindowTitleU); + if (hProcess) + RtlFreeUnicodeString(&FileNameU); Format2A.Buffer = NULL;
