Michael Niedermayer: > Fixes: index 32 out of bounds for type 'uint32_t [32]' > Fixes: > 63003/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-4685160840560640 > > Found-by: continuous fuzzing process > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > --- > libavcodec/hevc_ps.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/libavcodec/hevc_ps.c b/libavcodec/hevc_ps.c > index a6b64b92e3..f4365ef5b5 100644 > --- a/libavcodec/hevc_ps.c > +++ b/libavcodec/hevc_ps.c > @@ -421,6 +421,7 @@ static int decode_hrd(GetBitContext *gb, int > common_inf_present, > if (hdr->cpb_cnt_minus1[i] > 31) { > av_log(NULL, AV_LOG_ERROR, "nb_cpb %d invalid\n", > hdr->cpb_cnt_minus1[i]); > + hdr->cpb_cnt_minus1[i] = 0; > return AVERROR_INVALIDDATA; > } > }
There is a second issue here: There can be truncation during the previous assignment, because cpb_cnt_minus1 is uint8_t. So this should be fixed by properly checking the value and only putting it in the parameter set after it has been validated (which also avoids having to reset it). - Andreas _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
