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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-06 16:38:22 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-20 03:41:33 +0200 |
| commit | 1951a44d77d21cb93d43e00eee432b24b8bba82a (patch) | |
| tree | 296877b8a9b34d5afd1560d45d4f8534402777b9 | |
| parent | 54368ac9b3706650fcd072df1b3bdad3b5e1bc56 (diff) | |
| download | ffmpeg-1951a44d77d21cb93d43e00eee432b24b8bba82a.tar.gz | |
avcodec/dfa: Fix signed integer overflow: -2147483648 - 1 cannot be represented in type 'int'
Fixes: 1368/clusterfuzz-testcase-minimized-4507293276176384
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 12936a4585bc293c0f88327d6840f49e8e744b62)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/dfa.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/dfa.c b/libavcodec/dfa.c index 5ddb647c4c..3ea12f0511 100644 --- a/libavcodec/dfa.c +++ b/libavcodec/dfa.c @@ -67,7 +67,8 @@ static int decode_tsw1(GetByteContext *gb, uint8_t *frame, int width, int height const uint8_t *frame_start = frame; const uint8_t *frame_end = frame + width * height; int mask = 0x10000, bitbuf = 0; - int v, count, segments; + int v, count; + unsigned segments; unsigned offset; segments = bytestream2_get_le32(gb); |