Files
FFmpeg/libavcodec
Hassan Hany 273b161a98 avcodec/exif: skip EXIF entries with invalid TIFF field type 0
EXIF IFD entries with TIFF field type 0 are invalid per the specification.
Without a check, exif_read_values() fails to allocate entry->value,
causing an out of memory error.

This patch skips such entries early during parsing, allowing decoding
to continue normally.

Fixes: https://code.ffmpeg.org/FFmpeg/FFmpeg/issues/21623
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