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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-06-21 00:47:16 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-07-06 22:50:21 +0200 |
| commit | 7f527021df73b4792323f38f84a4bf2fbe5a2052 (patch) | |
| tree | 5f50eea2b08b8a394d015f706d9d236d86478b9e /libavcodec/alsdec.c | |
| parent | 0794494c8f2f756e3c9384dba21c54f7d4ba9286 (diff) | |
| download | ffmpeg-7f527021df73b4792323f38f84a4bf2fbe5a2052.tar.gz | |
avcodec/alsdec: Fixes signed integer overflow in LSB addition
Fixes: signed integer overflow: 8 * 536870912 cannot be represented in type 'int'
Fixes: 15281/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALS_fuzzer-5744458785619968
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/alsdec.c')
| -rw-r--r-- | libavcodec/alsdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/alsdec.c b/libavcodec/alsdec.c index 96cfbbf1fe..4b69775414 100644 --- a/libavcodec/alsdec.c +++ b/libavcodec/alsdec.c @@ -867,7 +867,7 @@ static int read_var_block_data(ALSDecContext *ctx, ALSBlockData *bd) res >>= 1; if (cur_k) { - res *= 1 << cur_k; + res *= 1U << cur_k; res |= get_bits_long(gb, cur_k); } } |