diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-06-21 00:47:16 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-11-11 20:18:46 +0100 |
| commit | a9e4ef620cb73c7fcf5e055a1f03ab359e358fe7 (patch) | |
| tree | ec3714f003135f2a491c7a95cd9f1ac4d38a7ff1 /libavcodec/alsdec.c | |
| parent | c5fd0c5446d0b73c01b5eb2922af0251bc213b76 (diff) | |
| download | ffmpeg-a9e4ef620cb73c7fcf5e055a1f03ab359e358fe7.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>
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); } } |