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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-01-11 22:38:35 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-01-16 01:29:18 +0100 |
| commit | 19dc5cdaa7c4a0e62c30497814417ffe77fb2ed7 (patch) | |
| tree | 375c764917297f51893e15bca3033e613dab444d /libavcodec/lzw.c | |
| parent | 70c68e654d146ae5184b8a87a8e2dd79d458ef60 (diff) | |
avcodec/lzw: Check for end of input
Fixes: Timeout
Fixes: 11873/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-5093495044308992
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/lzw.c')
| -rw-r--r-- | libavcodec/lzw.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/lzw.c b/libavcodec/lzw.c index b0b9a34358..e26e4829ee 100644 --- a/libavcodec/lzw.c +++ b/libavcodec/lzw.c @@ -71,6 +71,9 @@ static int lzw_get_code(struct LZWState * s) { int c; + if (s->bbits < s->cursize && bytestream2_get_bytes_left(&s->gb) <= 0) + return s->end_code; + if(s->mode == FF_LZW_GIF) { while (s->bbits < s->cursize) { if (!s->bs) { |