ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sun Jun 23 20:20:37 2024 +0200| [10801166589ab49ca2793cea306fcf3e5654995e] | committer: Michael Niedermayer
avcodec/aac/aacdec_usac: Test ac in usac ff_aac_usac_config_decode() needs AACDecContext to be set but some callers pass NULL. Happens only when the LATM decoder is used, and USAC is not supported in LATM Fixes: member access within null pointer of type 'AACDecContext' (aka 'struct AACDecContext') Fixes: 69435/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_LATM_fuzzer-5733527483121664 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Lynne <d...@lynne.ee> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=10801166589ab49ca2793cea306fcf3e5654995e --- libavcodec/aac/aacdec_usac.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/aac/aacdec_usac.c b/libavcodec/aac/aacdec_usac.c index 132ffee9c2..4856c1786b 100644 --- a/libavcodec/aac/aacdec_usac.c +++ b/libavcodec/aac/aacdec_usac.c @@ -348,6 +348,9 @@ int ff_aac_usac_config_decode(AACDecContext *ac, AVCodecContext *avctx, int map_pos_set = 0; uint8_t layout_map[MAX_ELEM_ID*4][3] = { 0 }; + if (!ac) + return AVERROR_PATCHWELCOME; + memset(usac, 0, sizeof(*usac)); freq_idx = get_bits(gb, 5); /* usacSamplingFrequencyIndex */ _______________________________________________ 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".
