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| author | Vincent Sanders <vince@kyllikki.org> | 2016-08-22 10:45:59 +0100 |
|---|---|---|
| committer | Vincent Sanders <vince@kyllikki.org> | 2016-08-22 10:45:59 +0100 |
| commit | 4fd92297e0a144881f37ffdb1c19fab6b0d3e47d (patch) | |
| tree | f1db587da24c607cdfcd26c388b417cc4f8f2173 | |
| parent | 14f1814ca437de24d3807f13c824058b28601249 (diff) | |
| download | libnsbmp-4fd92297e0a144881f37ffdb1c19fab6b0d3e47d.tar.gz libnsbmp-4fd92297e0a144881f37ffdb1c19fab6b0d3e47d.tar.bz2 | |
deal with unrepresentable negative heights in bitmap info header
| -rw-r--r-- | src/libnsbmp.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/libnsbmp.c b/src/libnsbmp.c index b9bd8f5..c03d34b 100644 --- a/src/libnsbmp.c +++ b/src/libnsbmp.c @@ -180,7 +180,11 @@ static bmp_result bmp_info_header_parse(bmp_image *bmp, uint8_t *data) return BMP_DATA_ERROR; if (height < 0) { bmp->reversed = true; - height = -height; + if (height <= -INT32_MAX) { + height = INT32_MAX; + } else { + height = -height; + } } /* ICOs only support 256*256 resolutions * In the case of the ICO header, the height is actually the added |