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[NTOSKRNL] Don't overflow backtrack stack buffer

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CORE-15902
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Bartosz Brachaczek 2019-03-31 11:27:16 +02:00 committed by Pierre Schweitzer
parent b1ae592e7f
commit 5d5e9c8486
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GPG key ID: 7545556C3D585B0B
2 changed files with 2 additions and 2 deletions
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2
ntoskrnl/fsrtl/dbcsname.c
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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);

2
ntoskrnl/fsrtl/name.c
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@ -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);