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[NTOSKRNL] Don't overflow backtrack stack buffer

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CORE-15902
This commit is contained in:
Bartosz Brachaczek
2019-03-31 11:44:00 +02:00
committed by Pierre Schweitzer
parent b1ae592e7f
commit 5d5e9c8486
2 changed files with 2 additions and 2 deletions
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ntoskrnl/fsrtl/dbcsname.c
+1 -1
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@@ -283,7 +283,7 @@ FsRtlIsDbcsInExpression(IN PANSI_STRING Expression,
}
/* If buffer too small */
if (BackTrackingPosition > BackTrackingBufferSize - 2)
if (BackTrackingPosition > BackTrackingBufferSize - 3)
{
/* We should only ever get here once! */
ASSERT(AllocatedBuffer == NULL);
ntoskrnl/fsrtl/name.c
+1 -1
View File
@@ -135,7 +135,7 @@ FsRtlIsNameInExpressionPrivate(IN PUNICODE_STRING Expression,
}
/* If buffer too small */
if (BackTrackingPosition > BackTrackingBufferSize - 2)
if (BackTrackingPosition > BackTrackingBufferSize - 3)
{
/* We should only ever get here once! */
ASSERT(AllocatedBuffer == NULL);