https://git.reactos.org/?p=reactos.git;a=commitdiff;h=b3b2a23f05e5188dc1475961fcd7f036f0046d25
commit b3b2a23f05e5188dc1475961fcd7f036f0046d25 Author: Samuel Serapion <[email protected]> AuthorDate: Fri Oct 20 14:00:32 2017 -0400 CID 1206831 Dereference after null check BytesRead is an optional out parameter and must be checked before being written to. --- sdk/lib/rtl/memstream.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sdk/lib/rtl/memstream.c b/sdk/lib/rtl/memstream.c index 0549424ca4..8fe4169fb1 100644 --- a/sdk/lib/rtl/memstream.c +++ b/sdk/lib/rtl/memstream.c @@ -185,7 +185,8 @@ RtlReadMemoryStream( Stream->Current = (PUCHAR)Stream->Current + CopyLength; - *BytesRead = CopyLength; + if (BytesRead) + *BytesRead = CopyLength; return S_OK; }
