#11475: memory leaks error at libavutil/mem.c:107
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Reporter: 0x20z | Type: defect
Status: new | Priority: important
Component: avutil | Version: git-master
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Summary of the bug:
{{{
Dear developers,
I have discovered a memory leaks vulnerability. The POC file is attached
to the session, and the version of ffmpeg is the main branch. Please
confirm.
}}}
How to reproduce:
{{{
git clone https://github.com/FFmpeg/FFmpeg.git
cd FFmpeg
./configure --cc=clang --cxx=clang++ --toolchain=clang-asan --extra-
cflags="-I$HOME/ffmpeg_build/include -O0 -fno-omit-frame-pointer -g"
--extra-cxxflags="-O0 -fno-omit-frame-pointer -g" --extra-
ldflags="-L$HOME/ffmpeg_build/include -fsanitize=address
-fsanitize=undefined -lubsan" --disable-optimizations --disable-stripping
--enable-cross-compile
make -j30
./ffmpeg -y -i poc tmp.mp4
}}}
LeakSanitizer:
{{{
=================================================================
==1846931==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 64 byte(s) in 1 object(s) allocated from:
#0 0x7fdae0ab557c in __interceptor_posix_memalign
../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:226
#1 0x563a6f92e54d in av_malloc libavutil/mem.c:107
#2 0x563a6f92ffdb in av_mallocz libavutil/mem.c:258
#3 0x563a6f904b8d in av_iamf_param_definition_alloc
libavutil/iamf.c:201
#4 0x563a6b1264d4 in param_parse libavformat/iamf_parse.c:531
#5 0x563a6b129f19 in audio_element_obu libavformat/iamf_parse.c:750
#6 0x563a6b13042c in ff_iamfdec_read_descriptors
libavformat/iamf_parse.c:1112
#7 0x563a6a8189d5 in iamf_read_header libavformat/iamfdec.c:78
#8 0x563a6a605797 in avformat_open_input libavformat/demux.c:308
#9 0x563a69047fb9 in ifile_open fftools/ffmpeg_demux.c:1727
#10 0x563a69106761 in open_files fftools/ffmpeg_opt.c:1362
#11 0x563a6910732a in ffmpeg_parse_options fftools/ffmpeg_opt.c:1411
#12 0x563a69187183 in main fftools/ffmpeg.c:974
#13 0x7fdadfe29d8f in __libc_start_call_main
../sysdeps/nptl/libc_start_call_main.h:58
SUMMARY: AddressSanitizer: 64 byte(s) leaked in 1 allocation(s
}}}
Found by:
{{{
Found by 0x20z
}}}
Thank you for your time and attention
--
Ticket URL: <https://trac.ffmpeg.org/ticket/11475>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
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