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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-06-13 10:48:14 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-07-03 12:10:24 +0200 |
| commit | 99d2024b18771ca9b6db4e917386b7775101fd1e (patch) | |
| tree | 0c4ac485bbe9490bc210b43f30a1a834efd5cb4e | |
| parent | c15b6bfd79aad440a19ca8e7ab3f06c37d882e6c (diff) | |
| download | ffmpeg-99d2024b18771ca9b6db4e917386b7775101fd1e.tar.gz | |
avcodec/iff: Fix off by x error
Fixes: out of array access
Fixes: 23245/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5723121327013888.fuzz
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 51225dee0a6266780d26d43bd6802bbcf736327e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/iff.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/iff.c b/libavcodec/iff.c index f094b4b548..6ec2dd60ad 100644 --- a/libavcodec/iff.c +++ b/libavcodec/iff.c @@ -723,7 +723,7 @@ static void decode_deep_rle32(uint8_t *dst, const uint8_t *src, int src_size, in if (opcode >= 0) { int size = opcode + 1; for (i = 0; i < size; i++) { - int length = FFMIN(size - i, width); + int length = FFMIN(size - i, width - x); if (src_end - src < length * 4) return; memcpy(dst + y*linesize + x * 4, src, length * 4); |