sravan/system76-edk2
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pointer verification (not NULL) and buffer overrun fixes.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11459 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
jcarsey
2011-03-30 19:33:03 +00:00
parent 6b825919f1
commit 33c031ee20
21 changed files with 338 additions and 185 deletions
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6
ShellPkg/Library/UefiShellDebug1CommandsLib/HexEdit/BufferImage.c
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@ -637,7 +637,7 @@ HBufferImageRestoreMousePosition (
CurrentLine = HBufferImage.CurrentLine;
Line = HMoveLine (FRow - HBufferImage.BufferPosition.Row);
if (FColumn > Line->Size) {
if (Line == NULL || FColumn > Line->Size) {
HasCharacter = FALSE;
}
@ -1620,7 +1620,7 @@ Returns:
//
HBufferImage.BufferPosition.Row = NewFilePosRow;
if (RowGap <= 0) {
Abs = -RowGap;
Abs = (UINTN)ABS(RowGap);
HBufferImage.DisplayPosition.Row -= Abs;
} else {
HBufferImage.DisplayPosition.Row += RowGap;
@ -1931,7 +1931,7 @@ Returns:
//
// if that line, is not that long, so move to the end of that line
//
if (FCol > Line->Size) {
if (Line != NULL && FCol > Line->Size) {
FCol = Line->Size + 1;
HighBits = TRUE;
}