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| author | June McEnroe <programble@gmail.com> | 2018-02-14 22:01:48 -0500 |
|---|---|---|
| committer | June McEnroe <programble@gmail.com> | 2018-02-14 22:01:48 -0500 |
| commit | 29ddcb071ab2344cdfc65489e6f6711b6f8b0d21 (patch) | |
| tree | ae0256303bc91a7edc28c4b96fa94e360c4e4cce /bin/gfx | |
| parent | Print PNG path on gfxx dump (diff) | |
| download | src-29ddcb071ab2344cdfc65489e6f6711b6f8b0d21.tar.gz src-29ddcb071ab2344cdfc65489e6f6711b6f8b0d21.zip | |
Avoid accessing past last byte in gfxx
Diffstat (limited to '')
| -rw-r--r-- | bin/gfxx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/bin/gfxx.c b/bin/gfxx.c index 674b68c9..6777c668 100644 --- a/bin/gfxx.c +++ b/bin/gfxx.c @@ -271,7 +271,7 @@ static void drawBits(struct Iter *it) { static void drawBytes(struct Iter *it) { uint8_t bytes = (BITS_TOTAL + 7) / 8; - for (size_t i = offset; i < size; i += bytes) { + for (size_t i = offset; i + bytes <= size; i += bytes) { uint32_t n = 0; for (size_t b = 0; b < bytes; ++b) { n <<= 8; |