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projects/ffmpeg/oss-fuzz_42537660/crash.log

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+INFO: Running with entropic power schedule (0xFF, 100).
+INFO: Seed: 1992647361
+INFO: Loaded 1 modules   (69357 inline 8-bit counters): 69357 [0x560ff07c3be8, 0x560ff07d4ad5), 
+INFO: Loaded 1 PC tables (69357 PCs): 69357 [0x560ff07d4ad8,0x560ff08e39a8), 
+/out/ffmpeg_AV_CODEC_ID_VP7_fuzzer: Running 1 inputs 1 time(s) each.
+Running: /tmp/poc
+==90584==WARNING: MemorySanitizer: use-of-uninitialized-value
+    #0 0x560fefec1da8 in put_vp8_epel8_h6v6_c /src/ffmpeg/libavcodec/vp8dsp.c:584:1
+    #1 0x560fefe758ea in vp8_mc_luma /src/ffmpeg/libavcodec/vp8.c:1857:9
+    #2 0x560fefe758ea in vp8_mc_part /src/ffmpeg/libavcodec/vp8.c:1941:5
+    #3 0x560fefe758ea in inter_predict /src/ffmpeg/libavcodec/vp8.c:2059:9
+    #4 0x560fefe758ea in decode_mb_row_no_filter /src/ffmpeg/libavcodec/vp8.c:2468:13
+    #5 0x560fefe758ea in vp7_decode_mb_row_no_filter /src/ffmpeg/libavcodec/vp8.c:2518:12
+    #6 0x560fefe53a0c in vp78_decode_mb_row_sliced /src/ffmpeg/libavcodec/vp8.c:2614:15
+    #7 0x560fefe53a0c in vp7_decode_mb_row_sliced /src/ffmpeg/libavcodec/vp8.c:2636:12
+    #8 0x560fefd66546 in avcodec_default_execute2 /src/ffmpeg/libavcodec/avcodec.c:90:17
+    #9 0x560fefe2ce26 in vp78_decode_frame /src/ffmpeg/libavcodec/vp8.c:2812:13
+    #10 0x560fefe2ce26 in vp7_decode_frame /src/ffmpeg/libavcodec/vp8.c:2850:12
+    #11 0x560fefd75df5 in decode_simple_internal /src/ffmpeg/libavcodec/decode.c:429:20
+    #12 0x560fefd75df5 in decode_simple_receive_frame /src/ffmpeg/libavcodec/decode.c:600:15
+    #13 0x560fefd75df5 in decode_receive_frame_internal /src/ffmpeg/libavcodec/decode.c:631:15
+    #14 0x560fefd7530d in avcodec_send_packet /src/ffmpeg/libavcodec/decode.c:721:15
+    #15 0x560fefd62db3 in LLVMFuzzerTestOneInput /src/ffmpeg/tools/target_dec_fuzzer.c:534:25
+    #16 0x560fefc55800 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:614:13
+    #17 0x560fefc40a75 in fuzzer::RunOneTest(fuzzer::Fuzzer*, char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:327:6
+    #18 0x560fefc4650f in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:862:9
+    #19 0x560fefc717b2 in main /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerMain.cpp:20:10
+    #20 0x7fbe8ff73082 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x24082) (BuildId: 0323ab4806bee6f846d9ad4bccfc29afdca49a58)
+    #21 0x560fefc38c5d in _start (/out/ffmpeg_AV_CODEC_ID_VP7_fuzzer+0x217c5d)
+
+  Uninitialized value was stored to memory at
+    #0 0x560fefcf899d in __msan_memcpy /src/llvm-project/compiler-rt/lib/msan/msan_interceptors.cpp:1729:3
+    #1 0x560ff0425d9d in ff_emulated_edge_mc_8 /src/ffmpeg/libavcodec/videodsp_template.c:78:9
+    #2 0x560fefe757e4 in vp8_mc_luma /src/ffmpeg/libavcodec/vp8.c:1847:13
+    #3 0x560fefe757e4 in vp8_mc_part /src/ffmpeg/libavcodec/vp8.c:1941:5
+    #4 0x560fefe757e4 in inter_predict /src/ffmpeg/libavcodec/vp8.c:2059:9
+    #5 0x560fefe757e4 in decode_mb_row_no_filter /src/ffmpeg/libavcodec/vp8.c:2468:13
+    #6 0x560fefe757e4 in vp7_decode_mb_row_no_filter /src/ffmpeg/libavcodec/vp8.c:2518:12
+    #7 0x560fefe53a0c in vp78_decode_mb_row_sliced /src/ffmpeg/libavcodec/vp8.c:2614:15
+    #8 0x560fefe53a0c in vp7_decode_mb_row_sliced /src/ffmpeg/libavcodec/vp8.c:2636:12
+    #9 0x560fefd66546 in avcodec_default_execute2 /src/ffmpeg/libavcodec/avcodec.c:90:17
+    #10 0x560fefe2ce26 in vp78_decode_frame /src/ffmpeg/libavcodec/vp8.c:2812:13
+    #11 0x560fefe2ce26 in vp7_decode_frame /src/ffmpeg/libavcodec/vp8.c:2850:12
+    #12 0x560fefd75df5 in decode_simple_internal /src/ffmpeg/libavcodec/decode.c:429:20
+    #13 0x560fefd75df5 in decode_simple_receive_frame /src/ffmpeg/libavcodec/decode.c:600:15
+    #14 0x560fefd75df5 in decode_receive_frame_internal /src/ffmpeg/libavcodec/decode.c:631:15
+    #15 0x560fefd7530d in avcodec_send_packet /src/ffmpeg/libavcodec/decode.c:721:15
+    #16 0x560fefd62db3 in LLVMFuzzerTestOneInput /src/ffmpeg/tools/target_dec_fuzzer.c:534:25
+    #17 0x560fefc55800 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:614:13
+    #18 0x560fefc40a75 in fuzzer::RunOneTest(fuzzer::Fuzzer*, char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:327:6
+    #19 0x560fefc4650f in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:862:9
+    #20 0x560fefc717b2 in main /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerMain.cpp:20:10
+    #21 0x7fbe8ff73082 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x24082) (BuildId: 0323ab4806bee6f846d9ad4bccfc29afdca49a58)
+
+  Uninitialized value was created by a heap allocation
+    #0 0x560fefcf8d83 in posix_memalign /src/llvm-project/compiler-rt/lib/msan/msan_interceptors.cpp:162:3
+    #1 0x560ff06702a7 in av_malloc /src/ffmpeg/libavutil/mem.c:107:9
+    #2 0x560ff0624ec2 in av_buffer_alloc /src/ffmpeg/libavutil/buffer.c:82:12
+    #3 0x560fefd656cd in fuzz_video_get_buffer /src/ffmpeg/tools/target_dec_fuzzer.c:132:25
+    #4 0x560fefd656cd in fuzz_get_buffer2 /src/ffmpeg/tools/target_dec_fuzzer.c:153:18
+    #5 0x560fefd81023 in ff_get_buffer /src/ffmpeg/libavcodec/decode.c:1621:11
+    #6 0x560fefdd9d69 in thread_get_buffer_internal /src/ffmpeg/libavcodec/pthread_frame.c:969:16
+    #7 0x560fefdd9d69 in ff_thread_get_buffer /src/ffmpeg/libavcodec/pthread_frame.c:988:15
+    #8 0x560fefd825f6 in ff_progress_frame_get_buffer /src/ffmpeg/libavcodec/decode.c:1725:11
+    #9 0x560fefe43365 in vp8_alloc_frame /src/ffmpeg/libavcodec/vp8.c:106:15
+    #10 0x560fefe28e42 in vp78_decode_frame /src/ffmpeg/libavcodec/vp8.c:2724:16
+    #11 0x560fefe28e42 in vp7_decode_frame /src/ffmpeg/libavcodec/vp8.c:2850:12
+    #12 0x560fefd75df5 in decode_simple_internal /src/ffmpeg/libavcodec/decode.c:429:20
+    #13 0x560fefd75df5 in decode_simple_receive_frame /src/ffmpeg/libavcodec/decode.c:600:15
+    #14 0x560fefd75df5 in decode_receive_frame_internal /src/ffmpeg/libavcodec/decode.c:631:15
+    #15 0x560fefd7530d in avcodec_send_packet /src/ffmpeg/libavcodec/decode.c:721:15
+    #16 0x560fefd62db3 in LLVMFuzzerTestOneInput /src/ffmpeg/tools/target_dec_fuzzer.c:534:25
+    #17 0x560fefc55800 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:614:13
+    #18 0x560fefc40a75 in fuzzer::RunOneTest(fuzzer::Fuzzer*, char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:327:6
+    #19 0x560fefc4650f in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:862:9
+    #20 0x560fefc717b2 in main /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerMain.cpp:20:10
+    #21 0x7fbe8ff73082 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x24082) (BuildId: 0323ab4806bee6f846d9ad4bccfc29afdca49a58)
+
+SUMMARY: MemorySanitizer: use-of-uninitialized-value /src/ffmpeg/libavcodec/vp8dsp.c:584:1 in put_vp8_epel8_h6v6_c
+Exiting

projects/ffmpeg/oss-fuzz_42537660/poc.bin

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+size 41

projects/ffmpeg/oss-fuzz_42537660/src.tgz

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