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mirror of https://git.ffmpeg.org/ffmpeg.git synced 2026-10-24 02:09:03 +03:00
Files
ffmpeg/libavformat
Jun Zhao 7386406b10 lavf/movenc: fix missing padding for AV1 extradata
The extradata allocated in mov_write_single_packet() for AV1 was missing
the required AV_INPUT_BUFFER_PADDING_SIZE padding bytes. This could lead
to out-of-bounds reads when the extradata is parsed by bitstream readers.

Replace av_memdup() with av_malloc() + memset() + memcpy() to ensure
proper padding is present and zeroed.

Reproduced with:
./ffmpeg -y -f lavfi -i "testsrc=duration=1:size=320x240:rate=30" -c:v libaom-av1 -cpu-used 8 -crf 50 test-av1.mp4

Signed-off-by: Jun Zhao <barryjzhao@tencent.com>
(cherry picked from commit 6c878f8b82)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2026-06-18 05:09:43 +02:00
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