Fixes: use after free Fixes: 62153/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MAGICYUV_fuzzer-4702814909366272
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/vlc.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/libavcodec/vlc.c b/libavcodec/vlc.c index b353d2e86c2..f4bab0ae529 100644 --- a/libavcodec/vlc.c +++ b/libavcodec/vlc.c @@ -471,10 +471,13 @@ int ff_vlc_init_multi_from_lengths(VLC *vlc, VLC_MULTI *multi, int nb_bits, int goto fail; } } - ret = vlc_common_end(vlc, nb_bits, j, buf, flags, localbuf); + ret = vlc_common_end(vlc, nb_bits, j, buf, flags, buf); if (ret < 0) goto fail; - return vlc_multi_gen(multi->table, vlc, nb_elems, j, nb_bits, buf, logctx); + ret = vlc_multi_gen(multi->table, vlc, nb_elems, j, nb_bits, buf, logctx); + if (buf != localbuf) + av_free(buf); + return ret; fail: if (buf != localbuf) av_free(buf); -- 2.17.1 _______________________________________________ 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".
