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More nullptr offset UBSan warnings (#57331, #57347).

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* src/autofit/afcjk.c (af_cjk_hints_compute_segments),
src/psaux/psft.c (cf2_getSeacComponent), src/truetype/ttinterp.c
(Ins_UNKNOWN): Use `FT_OFFSET'.
This commit is contained in:
Werner Lemberg 2019-12-03 11:52:48 +01:00
parent 4270e9f324
commit 551bd3a90e
4 changed files with 11 additions and 3 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2019-12-03 Werner Lemberg <wl@gnu.org>
More nullptr offset UBSan warnings (#57331, #57347).
* src/autofit/afcjk.c (af_cjk_hints_compute_segments),
src/psaux/psft.c (cf2_getSeacComponent), src/truetype/ttinterp.c
(Ins_UNKNOWN): Use `FT_OFFSET'.
2019-11-29 Dominik Röttsches <drott@chromium.org>
Avoid more nullptr offset UBSan warnings (#57316).

2
src/autofit/afcjk.c
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@ -806,7 +806,7 @@
{
AF_AxisHints axis = &hints->axis[dim];
AF_Segment segments = axis->segments;
AF_Segment segment_limit = segments + axis->num_segments;
AF_Segment segment_limit = FT_OFFSET( segments, axis->num_segments );
FT_Error error;
AF_Segment seg;

2
src/psaux/psft.c
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@ -700,7 +700,7 @@
FT_ASSERT( charstring + len >= charstring );
buf->start = charstring;
buf->end = charstring + len;
buf->end = FT_OFFSET( charstring, len );
buf->ptr = buf->start;
return FT_Err_Ok;

2
src/truetype/ttinterp.c
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@ -7715,7 +7715,7 @@
Ins_UNKNOWN( TT_ExecContext exc )
{
TT_DefRecord* def = exc->IDefs;
TT_DefRecord* limit = def + exc->numIDefs;
TT_DefRecord* limit = FT_OFFSET( def, exc->numIDefs );
for ( ; def < limit; def++ )