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msi: Fix a buffer overrun. 

Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Hans Leidekker <hans@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zebediah Figura 2017-06-29 00:09:50 -05:00 committed by Alexandre Julliard
parent 4884815505
commit 39b841d189
1 changed files with 3 additions and 3 deletions
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6
dlls/msi/package.c
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@ -1812,17 +1812,17 @@ INT MSI_ProcessMessage( MSIPACKAGE *package, INSTALLMESSAGE eMessageType, MSIREC
{ {
WCHAR template_s[1024]; WCHAR template_s[1024];
WCHAR *template_rec, *template; WCHAR *template_rec, *template;
DWORD length;
LoadStringW(msi_hInstance, IDS_INFO, template_s, 1024); LoadStringW(msi_hInstance, IDS_INFO, template_s, 1024);
res = MSI_RecordGetStringW(record, 0, NULL, &length); res = MSI_RecordGetStringW(record, 0, NULL, &len);
if (res != ERROR_SUCCESS && res != ERROR_MORE_DATA) if (res != ERROR_SUCCESS && res != ERROR_MORE_DATA)
return res; return res;
len++; len++;
template_rec = msi_alloc(len * sizeof(WCHAR)); template_rec = msi_alloc(len * sizeof(WCHAR));
if (!template_rec) return ERROR_OUTOFMEMORY; if (!template_rec) return ERROR_OUTOFMEMORY;
MSI_RecordGetStringW(record, 0, template_rec, &length); MSI_RecordGetStringW(record, 0, template_rec, &len);
len++;
template = msi_alloc((len + strlenW(template_s)) * sizeof(WCHAR)); template = msi_alloc((len + strlenW(template_s)) * sizeof(WCHAR));
if (!template) return ERROR_OUTOFMEMORY; if (!template) return ERROR_OUTOFMEMORY;