ffmpeg | branch: release/4.3 | Michael Niedermayer <mich...@niedermayer.cc> | Thu Aug 15 00:37:04 2024 +0200| [5a6bfec33d529d47c64b6efbcb810068cdc3470d] | committer: Michael Niedermayer
avcodec/wmavoice: Do not use uninitialized pitch[0] Fixes: use of uninitialized value Fixes: 70850/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMAVOICE_fuzzer-4806127362048000 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit 53387079301690f1bd38b97fdf31d63194201d17) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5a6bfec33d529d47c64b6efbcb810068cdc3470d --- libavcodec/wmavoice.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavcodec/wmavoice.c b/libavcodec/wmavoice.c index f6550c6a71..dc8c818fc1 100644 --- a/libavcodec/wmavoice.c +++ b/libavcodec/wmavoice.c @@ -1491,6 +1491,8 @@ static int synth_frame(AVCodecContext *ctx, GetBitContext *gb, int frame_idx, /* Parse frame type ("frame header"), see frame_descs */ int bd_idx = s->vbm_tree[get_vlc2(gb, frame_type_vlc.table, 6, 3)], block_nsamples; + pitch[0] = INT_MAX; + if (bd_idx < 0) { av_log(ctx, AV_LOG_ERROR, "Invalid frame type VLC code, skipping\n"); @@ -1608,6 +1610,9 @@ static int synth_frame(AVCodecContext *ctx, GetBitContext *gb, int frame_idx, double i_lsps[MAX_LSPS]; float lpcs[MAX_LSPS]; + if(frame_descs[bd_idx].fcb_type >= FCB_TYPE_AW_PULSES && pitch[0] == INT_MAX) + return AVERROR_INVALIDDATA; + for (n = 0; n < s->lsps; n++) // LSF -> LSP i_lsps[n] = cos(0.5 * (prev_lsps[n] + lsps[n])); ff_acelp_lspd2lpc(i_lsps, lpcs, s->lsps >> 1); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
