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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-06-21 00:47:16 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-11-14 23:30:37 +0100 |
| commit | 3e491e9c59a79d4cb3db4bedf66f3b7124c8c644 (patch) | |
| tree | 9ee3d5c670419ebca7c7c6f249b2fea406fe165c | |
| parent | 36c278078d7538fd8c1913fa979d78c61b1d8741 (diff) | |
| download | ffmpeg-3e491e9c59a79d4cb3db4bedf66f3b7124c8c644.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>
(cherry picked from commit 7f527021df73b4792323f38f84a4bf2fbe5a2052)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -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 c83f78dad7..1beb9eb40a 100644 --- a/libavcodec/alsdec.c +++ b/libavcodec/alsdec.c @@ -872,7 +872,7 @@ 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); } } |