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projects/c-blosc2/arvo_29976/crash.log
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INFO: Running with entropic power schedule (0xFF, 100).
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INFO: Seed: 2446251419
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INFO: Loaded 1 modules (52623 inline 8-bit counters): 52623 [0xec6a20, 0xed37af),
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INFO: Loaded 1 PC tables (52623 PCs): 52623 [0xba0f50,0xc6e840),
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/out/decompress_frame_fuzzer: Running 1 inputs 1 time(s) each.
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Running: /tmp/poc
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=================================================================
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==1889==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6080000000f9 at pc 0x0000005bb8c0 bp 0x7fffed8159d0 sp 0x7fffed8159c8
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READ of size 1 at 0x6080000000f9 thread T0
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SCARINESS: 12 (1-byte-read-heap-buffer-overflow)
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#0 0x5bb8bf in blosc_getitem /src/c-blosc2/blosc/blosc2.c:2637:21
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#1 0x5e6bc7 in get_coffset /src/c-blosc2/blosc/frame.c:1516:12
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#2 0x5e7b08 in frame_get_lazychunk /src/c-blosc2/blosc/frame.c:1676:20
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#3 0x5edaf4 in frame_decompress_chunk /src/c-blosc2/blosc/frame.c:2470:20
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#4 0x5db32a in blosc2_schunk_decompress_chunk /src/c-blosc2/blosc/schunk.c:620:17
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#5 0x55db66 in LLVMFuzzerTestOneInput /src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c:38:15
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#6 0x4612a1 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:599:15
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#7 0x44af62 in fuzzer::RunOneTest(fuzzer::Fuzzer*, char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:323:6
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#8 0x4512b6 in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:856:9
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#9 0x47b2a2 in main /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerMain.cpp:20:10
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#10 0x7ff151fa983f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2083f)
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#11 0x425928 in _start (/out/decompress_frame_fuzzer+0x425928)
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DEDUP_TOKEN: blosc_getitem--get_coffset--frame_get_lazychunk
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0x6080000000f9 is located 0 bytes to the right of 89-byte region [0x6080000000a0,0x6080000000f9)
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allocated by thread T0 here:
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#0 0x529d6d in malloc /src/llvm-project/compiler-rt/lib/asan/asan_malloc_linux.cpp:145:3
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#1 0x43ea77 in operator new(unsigned long) (/out/decompress_frame_fuzzer+0x43ea77)
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#2 0x44af62 in fuzzer::RunOneTest(fuzzer::Fuzzer*, char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:323:6
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#3 0x4512b6 in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:856:9
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#4 0x47b2a2 in main /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerMain.cpp:20:10
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#5 0x7ff151fa983f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2083f)
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DEDUP_TOKEN: malloc--operator new(unsigned long)--fuzzer::RunOneTest(fuzzer::Fuzzer*, char const*, unsigned long)
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SUMMARY: AddressSanitizer: heap-buffer-overflow /src/c-blosc2/blosc/blosc2.c:2637:21 in blosc_getitem
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Shadow bytes around the buggy address:
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0x0c107fff7fc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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0x0c107fff7fd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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0x0c107fff7fe0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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0x0c107fff7ff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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0x0c107fff8000: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 01
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=>0x0c107fff8010: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00[01]
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0x0c107fff8020: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
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0x0c107fff8030: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
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0x0c107fff8040: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
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0x0c107fff8050: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
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0x0c107fff8060: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
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Shadow byte legend (one shadow byte represents 8 application bytes):
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Addressable: 00
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Partially addressable: 01 02 03 04 05 06 07
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Heap left redzone: fa
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Freed heap region: fd
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Stack left redzone: f1
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Stack mid redzone: f2
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Stack right redzone: f3
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Stack after return: f5
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Stack use after scope: f8
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Global redzone: f9
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Global init order: f6
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Poisoned by user: f7
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Container overflow: fc
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Array cookie: ac
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Intra object redzone: bb
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ASan internal: fe
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Left alloca redzone: ca
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Right alloca redzone: cb
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Shadow gap: cc
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==1889==ABORTING
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projects/c-blosc2/arvo_29976/poc.bin
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version https://git-lfs.github.com/spec/v1
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oid sha256:9b4938a082725361a52f6c0ee0d4cf81d18578f56d890f5f0b104d10b523143d
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size 89
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projects/c-blosc2/arvo_29976/src.tgz
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version https://git-lfs.github.com/spec/v1
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oid sha256:f3a9a12b409e05f2536c6872b6537afb76f2a0562bdd8aa5f5f4b11ad9362034
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size 1192096
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