From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 1/6] avcodec/cbs: sei_3d_reference_displays_info uses length 0 elements
Date: Wed, 31 Jul 2024 21:54:05 +0200
Message-ID: <20240731195410.274508-1-michael@niedermayer.cc> (raw)
Fixes: 70458/clusterfuzz-testcase-minimized-ffmpeg_BSF_TRACE_HEADERS_fuzzer-5259339779080192
Fixes: Assertion width > 0 && width <= 32 failed at libavcodec/cbs.c:608
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavcodec/cbs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/cbs.c b/libavcodec/cbs.c
index b26e39eab4d..dcbc86a5f7d 100644
--- a/libavcodec/cbs.c
+++ b/libavcodec/cbs.c
@@ -605,7 +605,7 @@ static av_always_inline int cbs_read_unsigned(CodedBitstreamContext *ctx,
CBS_TRACE_READ_START();
- av_assert0(width > 0 && width <= 32);
+ av_assert0(width >= 0 && width <= 32);
if (get_bits_left(gbc) < width) {
av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid value at "
--
2.45.2
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next reply other threads:[~2024-07-31 19:54 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-31 19:54 Michael Niedermayer [this message]
2024-07-31 19:54 ` [FFmpeg-devel] [PATCH 2/6] avcodec/aac/aacdec_usac: Dont leave type at a invalid value Michael Niedermayer
2024-07-31 19:54 ` [FFmpeg-devel] [PATCH 3/6] avformat/iamf_parse: Check for 0 samples Michael Niedermayer
2024-07-31 22:04 ` James Almer
2024-07-31 19:54 ` [FFmpeg-devel] [PATCH 4/6] avcodec/aac/aacdec_usac: Clean ics2->max_sfb when first SCE fails Michael Niedermayer
2024-08-01 15:11 ` Lynne via ffmpeg-devel
2024-08-01 17:07 ` Michael Niedermayer
2024-07-31 19:54 ` [FFmpeg-devel] [PATCH 5/6] avcodec/utils: apply the same alignment to YUV410 as we do to YUV420 for snow Michael Niedermayer
2024-07-31 19:54 ` [FFmpeg-devel] [PATCH 6/6] avcodec/snow: Fix off by 1 error in run_buffer Michael Niedermayer
2024-07-31 20:05 ` Michael Niedermayer
2024-07-31 22:03 ` [FFmpeg-devel] [PATCH 1/6] avcodec/cbs: sei_3d_reference_displays_info uses length 0 elements James Almer
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