ffmpeg | branch: master | Michael Niedermayer <[email protected]> | Thu Oct 5 18:14:56 2023 +0200| [75eb698bdce2c1c3649ee2e99b27103fa95898fd] | committer: Michael Niedermayer
avcodec/cbs_h2645: Fix showing bits at the end in cbs_read_ue_golomb() Fixes: Assertion n>0 && n<=25 failed at libavcodec/get_bits.h:375 Fixes: 62617/clusterfuzz-testcase-minimized-ffmpeg_BSF_TRACE_HEADERS_fuzzer-5156555663998976 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=75eb698bdce2c1c3649ee2e99b27103fa95898fd --- libavcodec/cbs_h2645.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/cbs_h2645.c b/libavcodec/cbs_h2645.c index 615a7cf5ec..adf9c16fdf 100644 --- a/libavcodec/cbs_h2645.c +++ b/libavcodec/cbs_h2645.c @@ -44,7 +44,7 @@ static int cbs_read_ue_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 ue-golomb code at " _______________________________________________ ffmpeg-cvslog mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
