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| author | Jeremy Huddleston Sequoia <jeremyhu@apple.com> | 2016-05-29 23:34:35 -0700 |
|---|---|---|
| committer | Jeremy Huddleston Sequoia <jeremyhu@apple.com> | 2016-05-30 21:25:00 -0700 |
| commit | 3eddbca2690381bbbaf14adadb2679eea702095f (patch) | |
| tree | 5b94cad008ca5e45e98ae887848aa3c64ed925fc | |
| parent | dfa572ea522a3019e91f2de7854b252c629342f2 (diff) | |
bitmap: Bail out on invalid input to FontFileMakeDir instead of calling calloc for 0 bytes
Found by clang static analysis:
Call to 'calloc' has an allocation size of 0 bytes
Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
(cherry picked from commit ac559fad20bbae45332c758abb6a790c3fd341a2)
| -rw-r--r-- | src/bitmap/bitscale.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/bitmap/bitscale.c b/src/bitmap/bitscale.c index c9af4c0..13ed924 100644 --- a/src/bitmap/bitscale.c +++ b/src/bitmap/bitscale.c @@ -1479,6 +1479,10 @@ BitmapScaleBitmaps(FontPtr pf, /* scaled font */ lastRow = pfi->lastRow; nchars = (lastRow - firstRow + 1) * (lastCol - firstCol + 1); + if (nchars <= 0) { + goto bail; + } + glyph = pf->glyph; for (i = 0; i < nchars; i++) { |