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| author | Michael Niedermayer <michael@niedermayer.cc> | 2024-07-19 19:52:35 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2024-07-23 23:21:14 +0200 |
| commit | d52fabaec00440a4615814805210e0eaad6ba3cb (patch) | |
| tree | 4029d36a8b120db47a4e70d8526388cfce25d69e | |
| parent | 419eee63565f81aca67b29582297841c59deaab8 (diff) | |
| download | ffmpeg-d52fabaec00440a4615814805210e0eaad6ba3cb.tar.gz | |
avcodec/hevc/hevcdec: avoid signed shifts with lt_idx_sps
Fixes: left shift of 1 by 31 places cannot be represented in type 'int'
Fixes: 70122/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-5172200613675008
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/hevc/hevcdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/hevc/hevcdec.c b/libavcodec/hevc/hevcdec.c index 6b3cf0fec3..526194eb80 100644 --- a/libavcodec/hevc/hevcdec.c +++ b/libavcodec/hevc/hevcdec.c @@ -292,7 +292,7 @@ static int decode_lt_rps(const HEVCSPS *sps, LongTermRPS *rps, lt_idx_sps = get_bits(gb, av_ceil_log2(sps->num_long_term_ref_pics_sps)); rps->poc[i] = sps->lt_ref_pic_poc_lsb_sps[lt_idx_sps]; - rps->used[i] = !!(sps->used_by_curr_pic_lt & (1 << lt_idx_sps)); + rps->used[i] = !!(sps->used_by_curr_pic_lt & (1U << lt_idx_sps)); } else { rps->poc[i] = get_bits(gb, sps->log2_max_poc_lsb); rps->used[i] = get_bits1(gb); |