[oss-fuzz 4605658287898624] KaxEncoding leak in matroska_segment_c::ParseTrackEntry()
Ref.
INFO: Running with entropic power schedule (0xFF, 100).
INFO: Seed: 1667725313
INFO: Loaded 1 modules (75326 inline 8-bit counters): 75326 [0x569b4f1c6aa8, 0x569b4f1d90e6),
INFO: Loaded 1 PC tables (75326 PCs): 75326 [0x569b4f1d90e8,0x569b4f2ff4c8),
/mnt/scratch0/clusterfuzz/bot/builds/clusterfuzz-builds_vlc_8f98ce4aa4498db36bdafd2ab37989a4592ed90c/revisions/vlc-demux-dec-libfuzzer: Running 1 inputs 100 time(s) each.
Running: /mnt/scratch0/clusterfuzz/bot/inputs/fuzzer-testcases/leak-50a32494fbb28d6be21b3d89fe257930825e374d
=================================================================
==249==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 64 byte(s) in 1 object(s) allocated from:
#0 0x569b4e8c2dad in operator new(unsigned long) /src/llvm-project/compiler-rt/lib/asan/asan_new_delete.cpp:109:35
#1 0x569b4ec157be in KaxContentCompSettings_handler /src/vlc/modules/demux/mkv/matroska_segment_parse.cpp:481:43
#2 0x569b4ec157be in mkv::matroska_segment_c::ParseTrackEntry(libmatroska::KaxTrackEntry const*)::MetaDataHandlers::KaxContentCompSettings_callback(libebml::EbmlElement*, void*) /src/vlc/modules/demux/mkv/matroska_segment_parse.cpp:479:9
#3 0x569b4ec1550d in iterate<std::__1::__wrap_iter<libebml::EbmlElement **> > /src/vlc/modules/demux/mkv/dispatcher.hpp:45:50
#4 0x569b4ec1550d in KaxContentCompression_handler /src/vlc/modules/demux/mkv/matroska_segment_parse.cpp:464:24
#5 0x569b4ec1550d in mkv::matroska_segment_c::ParseTrackEntry(libmatroska::KaxTrackEntry const*)::MetaDataHandlers::KaxContentCompression_callback(libebml::EbmlElement*, void*) /src/vlc/modules/demux/mkv/matroska_segment_parse.cpp:457:9
#6 0x569b4ec1528d in iterate<std::__1::__wrap_iter<libebml::EbmlElement **> > /src/vlc/modules/demux/mkv/dispatcher.hpp:45:50
#7 0x569b4ec1528d in KaxContentEncoding_handler /src/vlc/modules/demux/mkv/matroska_segment_parse.cpp:441:24
#8 0x569b4ec1528d in mkv::matroska_segment_c::ParseTrackEntry(libmatroska::KaxTrackEntry const*)::MetaDataHandlers::KaxContentEncoding_callback(libebml::EbmlElement*, void*) /src/vlc/modules/demux/mkv/matroska_segment_parse.cpp:436:9
#9 0x569b4ec1512d in iterate<std::__1::__wrap_iter<libebml::EbmlElement **> > /src/vlc/modules/demux/mkv/dispatcher.hpp:45:50
#10 0x569b4ec1512d in KaxContentEncodings_handler /src/vlc/modules/demux/mkv/matroska_segment_parse.cpp:433:24
#11 0x569b4ec1512d in mkv::matroska_segment_c::ParseTrackEntry(libmatroska::KaxTrackEntry const*)::MetaDataHandlers::KaxContentEncodings_callback(libebml::EbmlElement*, void*) /src/vlc/modules/demux/mkv/matroska_segment_parse.cpp:422:9
#12 0x569b4ec0d74d in iterate<std::__1::__wrap_iter<libebml::EbmlElement *const *> > /src/vlc/modules/demux/mkv/dispatcher.hpp:45:50
#13 0x569b4ec0d74d in mkv::matroska_segment_c::ParseTrackEntry(libmatroska::KaxTrackEntry const*) /src/vlc/modules/demux/mkv/matroska_segment_parse.cpp:1074:36
#14 0x569b4ec0f53d in iterate<std::__1::__wrap_iter<libebml::EbmlElement **> > /src/vlc/modules/demux/mkv/dispatcher.hpp:45:50
#15 0x569b4ec0f53d in mkv::matroska_segment_c::ParseTracks(libmatroska::KaxTracks*) /src/vlc/modules/demux/mkv/matroska_segment_parse.cpp:1160:33
#16 0x569b4ebf1de8 in mkv::matroska_segment_c::Preload() /src/vlc/modules/demux/mkv/matroska_segment.cpp:594:17
#17 0x569b4ec48b31 in mkv::demux_sys_t::AnalyseAllSegmentsFound(stream_t*, mkv::matroska_stream_c*) /src/vlc/modules/demux/mkv/demux.cpp:117:25
#18 0x569b4ebcd980 in mkv::OpenInternal(stream_t*, bool) /src/vlc/modules/demux/mkv/mkv.cpp:145:17
#19 0x569b4eda107a in demux_Probe /src/vlc/src/input/demux.c:112:15
#20 0x569b4ed5c310 in vlc_module_load /src/vlc/src/modules/modules.c:230:15
#21 0x569b4eda076d in demux_NewAdvanced /src/vlc/src/input/demux.c:196:20
#22 0x569b4ed9fe0f in demux_New /src/vlc/src/input/demux.c:77:12
#23 0x569b4e8c45f9 in demux_process_stream /src/vlc/test/src/input/demux-run.c:300:22
#24 0x569b4e8c42af in LLVMFuzzerTestOneInput /src/vlc/test/vlc-demux-libfuzzer.c:63:5
#25 0x569b4e761a7d in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:619:13
#26 0x569b4e74c7f2 in fuzzer::RunOneTest(fuzzer::Fuzzer*, char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:329:6
#27 0x569b4e7526c0 in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:865:9
#28 0x569b4e77e1f2 in main /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerMain.cpp:20:10
#29 0x79dfd1555082 in __libc_start_main /build/glibc-B3wQXB/glibc-2.31/csu/libc-start.c:308:16
================================================================================
The following leaks are not necessarily related to the first leak.
Indirect leak of 2 byte(s) in 1 object(s) allocated from:
#0 0x569b4e8803d4 in __interceptor_malloc /src/llvm-project/compiler-rt/lib/asan/asan_malloc_linux.cpp:67:3
#1 0x569b4ec7f82f in libebml::EbmlBinary::EbmlBinary(libebml::EbmlBinary const&) /src/vlc/contrib/contrib-build/ebml/src/EbmlBinary.cpp:55:34
#2 0x569b4ec1550d in iterate<std::__1::__wrap_iter<libebml::EbmlElement **> > /src/vlc/modules/demux/mkv/dispatcher.hpp:45:50
#3 0x569b4ec1550d in KaxContentCompression_handler /src/vlc/modules/demux/mkv/matroska_segment_parse.cpp:464:24
#4 0x569b4ec1550d in mkv::matroska_segment_c::ParseTrackEntry(libmatroska::KaxTrackEntry const*)::MetaDataHandlers::KaxContentCompression_callback(libebml::EbmlElement*, void*) /src/vlc/modules/demux/mkv/matroska_segment_parse.cpp:457:9
#5 0x569b4ec1528d in iterate<std::__1::__wrap_iter<libebml::EbmlElement **> > /src/vlc/modules/demux/mkv/dispatcher.hpp:45:50
#6 0x569b4ec1528d in KaxContentEncoding_handler /src/vlc/modules/demux/mkv/matroska_segment_parse.cpp:441:24
#7 0x569b4ec1528d in mkv::matroska_segment_c::ParseTrackEntry(libmatroska::KaxTrackEntry const*)::MetaDataHandlers::KaxContentEncoding_callback(libebml::EbmlElement*, void*) /src/vlc/modules/demux/mkv/matroska_segment_parse.cpp:436:9
#8 0x569b4ec1512d in iterate<std::__1::__wrap_iter<libebml::EbmlElement **> > /src/vlc/modules/demux/mkv/dispatcher.hpp:45:50
#9 0x569b4ec1512d in KaxContentEncodings_handler /src/vlc/modules/demux/mkv/matroska_segment_parse.cpp:433:24
#10 0x569b4ec1512d in mkv::matroska_segment_c::ParseTrackEntry(libmatroska::KaxTrackEntry const*)::MetaDataHandlers::KaxContentEncodings_callback(libebml::EbmlElement*, void*) /src/vlc/modules/demux/mkv/matroska_segment_parse.cpp:422:9
#11 0x569b4ec0d74d in iterate<std::__1::__wrap_iter<libebml::EbmlElement *const *> > /src/vlc/modules/demux/mkv/dispatcher.hpp:45:50
#12 0x569b4ec0d74d in mkv::matroska_segment_c::ParseTrackEntry(libmatroska::KaxTrackEntry const*) /src/vlc/modules/demux/mkv/matroska_segment_parse.cpp:1074:36
#13 0x569b4ec0f53d in iterate<std::__1::__wrap_iter<libebml::EbmlElement **> > /src/vlc/modules/demux/mkv/dispatcher.hpp:45:50
#14 0x569b4ec0f53d in mkv::matroska_segment_c::ParseTracks(libmatroska::KaxTracks*) /src/vlc/modules/demux/mkv/matroska_segment_parse.cpp:1160:33
#15 0x569b4ebf1de8 in mkv::matroska_segment_c::Preload() /src/vlc/modules/demux/mkv/matroska_segment.cpp:594:17
#16 0x569b4ec48b31 in mkv::demux_sys_t::AnalyseAllSegmentsFound(stream_t*, mkv::matroska_stream_c*) /src/vlc/modules/demux/mkv/demux.cpp:117:25
#17 0x569b4ebcd980 in mkv::OpenInternal(stream_t*, bool) /src/vlc/modules/demux/mkv/mkv.cpp:145:17
#18 0x569b4eda107a in demux_Probe /src/vlc/src/input/demux.c:112:15
#19 0x569b4ed5c310 in vlc_module_load /src/vlc/src/modules/modules.c:230:15
#20 0x569b4eda076d in demux_NewAdvanced /src/vlc/src/input/demux.c:196:20
#21 0x569b4ed9fe0f in demux_New /src/vlc/src/input/demux.c:77:12
#22 0x569b4e8c45f9 in demux_process_stream /src/vlc/test/src/input/demux-run.c:300:22
#23 0x569b4e8c42af in LLVMFuzzerTestOneInput /src/vlc/test/vlc-demux-libfuzzer.c:63:5
#24 0x569b4e761a7d in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:619:13
#25 0x569b4e74c7f2 in fuzzer::RunOneTest(fuzzer::Fuzzer*, char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:329:6
#26 0x569b4e7526c0 in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:865:9
#27 0x569b4e77e1f2 in main /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerMain.cpp:20:10
#28 0x79dfd1555082 in __libc_start_main /build/glibc-B3wQXB/glibc-2.31/csu/libc-start.c:308:16
SUMMARY: AddressSanitizer: 66 byte(s) leaked in 2 allocation(s).
INFO: a leak has been found in the initial corpus.
INFO: to ignore leaks on libFuzzer side use -detect_leaks=0.Sample: