Files
FFmpeg/libavcodec
Oliver Chang 041d4f010e libavcodec/prores_raw: Fix heap-buffer-overflow in decode_frame
Fixes a heap-buffer-overflow in `decode_frame` where `header_len` read
from the bitstream was not validated against the remaining bytes in the
input buffer (`gb`). This allowed `gb_hdr` to be initialized with a size
exceeding the actual packet data, leading to an out-of-bounds read.

The fix adds a check to ensure `bytestream2_get_bytes_left(&gb)` is
greater than or equal to `header_len - 2` before initializing `gb_hdr`.

Fixes: https://issues.oss-fuzz.com/issues/439711053
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