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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-09-01 22:31:45 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-09-04 20:26:35 +0200 |
| commit | 517fd68acd7e7a5472fa3c42d2f833773fbcb5b3 (patch) | |
| tree | 97bee68b5ea0de30117321a790fe3ddece4ce941 /libavcodec/alsdec.c | |
| parent | 69db79074fef414d196bfae0bf9bf7afa24fa33c (diff) | |
| download | ffmpeg-517fd68acd7e7a5472fa3c42d2f833773fbcb5b3.tar.gz | |
avcodec/bgmc: Check input space in ff_bgmc_decode_init()
Fixes: Infinite loop
Fixes: 16608/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALS_fuzzer-5636229827133440
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Thilo Borgmann <thilo.borgmann@mail.de>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b54031a6e93d1abc7fb2d0263e0f6c4b639e423f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/alsdec.c')
| -rw-r--r-- | libavcodec/alsdec.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavcodec/alsdec.c b/libavcodec/alsdec.c index 11bbd38f58..f8d10df8c6 100644 --- a/libavcodec/alsdec.c +++ b/libavcodec/alsdec.c @@ -821,7 +821,9 @@ static int read_var_block_data(ALSDecContext *ctx, ALSBlockData *bd) unsigned int low; unsigned int value; - ff_bgmc_decode_init(gb, &high, &low, &value); + int ret = ff_bgmc_decode_init(gb, &high, &low, &value); + if (ret < 0) + return ret; current_res = bd->raw_samples + start; |