Fixes: Infinite loop
Fixes: 
10685/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PROSUMER_fuzzer-5652236881887232

Found-by: continuous fuzzing process 
https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
 libavcodec/prosumer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/prosumer.c b/libavcodec/prosumer.c
index 6e98677b55..2fd9880ee1 100644
--- a/libavcodec/prosumer.c
+++ b/libavcodec/prosumer.c
@@ -57,7 +57,7 @@ static int decompress(GetByteContext *gb, int size, 
PutByteContext *pb, const ui
     b = lut[2 * idx];
 
     while (1) {
-        if (bytestream2_get_bytes_left_p(pb) <= 0)
+        if (bytestream2_get_bytes_left_p(pb) <= 0 || bytestream2_get_eof(pb))
             return 0;
         if (((b & 0xFF00u) != 0x8000u) || (b & 0xFFu)) {
             if ((b & 0xFF00u) != 0x8000u) {
-- 
2.19.1

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