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patch 8.1.0565: asan complains about reading before allocated block

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Problem:    Asan complains about reading before allocated block.
Solution:   Workaround: Avoid offset from becoming negative.
This commit is contained in:
Bram Moolenaar
2018-12-05 19:46:07 +01:00
parent 88b53fd052
commit 10600db772
2 changed files with 4 additions and 1 deletions
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3
src/gui.c
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@@ -2753,7 +2753,8 @@ gui_redraw_block(
} }
else if (enc_utf8) else if (enc_utf8)
{ {
if (ScreenLines[off + col1] == 0) // FIXME: how can the first character ever be zero?
if (col1 > 0 && ScreenLines[off + col1] == 0)
--col1; --col1;
# ifdef FEAT_GUI_GTK # ifdef FEAT_GUI_GTK
if (col2 + 1 < Columns && ScreenLines[off + col2 + 1] == 0) if (col2 + 1 < Columns && ScreenLines[off + col2 + 1] == 0)

2
src/version.c
View File

@@ -792,6 +792,8 @@ static char *(features[]) =
static int included_patches[] = static int included_patches[] =
{ /* Add new patch number below this line */ { /* Add new patch number below this line */
/**/
565,
/**/ /**/
564, 564,
/**/ /**/