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Add missing parameter checks to RtlAreBitsClear and RtlAreBitsSet

svn path=/trunk/; revision=55575
This commit is contained in:
Timo Kreuzer 2012-02-13 14:35:26 +00:00
parent 6c35ffefb5
commit 7a0cab18d0
1 changed files with 10 additions and 0 deletions
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10
reactos/lib/rtl/bitmap.c
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@ -365,6 +365,11 @@ RtlAreBitsClear(
IN ULONG StartingIndex, IN ULONG StartingIndex,
IN ULONG Length) IN ULONG Length)
{ {
/* Verify parameters */
if ((StartingIndex + Length > BitMapHeader->SizeOfBitMap) ||
(StartingIndex + Length <= StartingIndex))
return FALSE;
return RtlpGetLengthOfRunClear(BitMapHeader, StartingIndex, Length) >= Length; return RtlpGetLengthOfRunClear(BitMapHeader, StartingIndex, Length) >= Length;
} }
@ -375,6 +380,11 @@ RtlAreBitsSet(
IN ULONG StartingIndex, IN ULONG StartingIndex,
IN ULONG Length) IN ULONG Length)
{ {
/* Verify parameters */
if ((StartingIndex + Length > BitMapHeader->SizeOfBitMap) ||
(StartingIndex + Length <= StartingIndex))
return FALSE;
return RtlpGetLengthOfRunSet(BitMapHeader, StartingIndex, Length) >= Length; return RtlpGetLengthOfRunSet(BitMapHeader, StartingIndex, Length) >= Length;
} }