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[NTOSKRNL] Don't oversize buffer for backtracking in FsRtlIsNameInExpressionPrivate
author
Bartosz Brachaczek
<b.brachaczek@gmail.com>
Sun, 31 Mar 2019 09:15:38 +0000
(11:15 +0200)
committer
Pierre Schweitzer
<pierre@reactos.org>
Sun, 31 Mar 2019 09:44:00 +0000
(11:44 +0200)
CORE-15902
ntoskrnl/fsrtl/name.c
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diff --git
a/ntoskrnl/fsrtl/name.c
b/ntoskrnl/fsrtl/name.c
index
fef798c
..
a6f0c00
100644
(file)
--- a/
ntoskrnl/fsrtl/name.c
+++ b/
ntoskrnl/fsrtl/name.c
@@
-143,7
+143,7
@@
FsRtlIsNameInExpressionPrivate(IN PUNICODE_STRING Expression,
ASSERT((OldBackTracking == BackTrackingBuffer) || (OldBackTracking == OldBackTrackingBuffer));
/* Calculate buffer size */
- BackTrackingBufferSize =
(Expression->Length + 1) * 2
;
+ BackTrackingBufferSize =
Expression->Length + 1
;
/* Allocate memory for both back-tracking buffers */
AllocatedBuffer = ExAllocatePoolWithTag(PagedPool | POOL_RAISE_IF_ALLOCATION_FAILURE,