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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-10-05 18:14:56 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-10-16 01:14:09 +0200 |
| commit | 61b86add52fa6af4fb872894a349e24b5fcb98d2 (patch) | |
| tree | 017f34ea775d1643217eef7531626b04eff311db | |
| parent | 75eb698bdce2c1c3649ee2e99b27103fa95898fd (diff) | |
| download | ffmpeg-61b86add52fa6af4fb872894a349e24b5fcb98d2.tar.gz | |
avcodec/cbs_h2645: Fix showing bits at the end in cbs_read_se_golomb()
Fixes: Assertion n>0 && n<=25 failed at libavcodec/get_bits.h:375
Fixes: 62618/clusterfuzz-testcase-minimized-ffmpeg_BSF_H264_REDUNDANT_PPS_fuzzer-5145745046765568
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/cbs_h2645.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/cbs_h2645.c b/libavcodec/cbs_h2645.c index adf9c16fdf..470f60b95f 100644 --- a/libavcodec/cbs_h2645.c +++ b/libavcodec/cbs_h2645.c @@ -94,7 +94,7 @@ static int cbs_read_se_golomb(CodedBitstreamContext *ctx, GetBitContext *gbc, max_length = FFMIN(get_bits_left(gbc), 32); - leading_bits = show_bits_long(gbc, max_length); + leading_bits = max_length ? show_bits_long(gbc, max_length) : 0; if (leading_bits == 0) { if (max_length >= 32) { av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid se-golomb code at " |