#11419: libavutil/mem.c:107:9 memory leaks
-------------------------------------+-------------------------------------
Reporter: 0x20z | Type: defect
Status: new | Priority: important
Component: | Version: git-
undetermined | master
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
{{{
Using the latest master branch, the new POC can still trigger memory
leaks, but the POC in https://trac.ffmpeg.org/ticket/11415 cannot trigger
the problem. ticket 11415 has already been closed, so I have created a new
ticket. Please understand
}}}
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 -c:v mpeg4 -c:a copy -f mp4 /dev/null
}}}
LeakSanitizer :
{{{
=================================================================
==3075001==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 112 byte(s) in 1 object(s) allocated from:
#0 0x7f5b2c4b557c in __interceptor_posix_memalign
../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:226
#1 0x580813e1ab7d in av_malloc libavutil/mem.c:107
#2 0x58080f0faf18 in ff_interleave_add_packet libavformat/mux.c:866
#3 0x58080f0fcfc0 in ff_interleave_packet_per_dts
libavformat/mux.c:971
#4 0x58080f100340 in interleaved_write_packet libavformat/mux.c:1141
#5 0x58080f100ec6 in write_packet_common libavformat/mux.c:1172
#6 0x58080f1021d5 in write_packets_common libavformat/mux.c:1232
#7 0x58080f102e06 in av_interleaved_write_frame libavformat/mux.c:1288
#8 0x58080d5a74eb in write_packet fftools/ffmpeg_mux.c:236
#9 0x58080d5a8043 in sync_queue_process fftools/ffmpeg_mux.c:280
#10 0x58080d5a99df in mux_packet_filter fftools/ffmpeg_mux.c:356
#11 0x58080d5aac1b in muxer_thread fftools/ffmpeg_mux.c:438
#12 0x58080d63777f in task_wrapper fftools/ffmpeg_sched.c:2534
#13 0x7f5b2b894ac2 in start_thread nptl/pthread_create.c:442
Indirect leak of 259 byte(s) in 1 object(s) allocated from:
#0 0x7f5b2c4b557c in __interceptor_posix_memalign
../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:226
#1 0x580813e1ab7d in av_malloc libavutil/mem.c:107
#2 0x580813d66394 in av_buffer_alloc libavutil/buffer.c:82
#3 0x580810e43f15 in av_grow_packet libavcodec/packet.c:160
#4 0x58080f4bc122 in append_packet_chunked libavformat/utils.c:71
#5 0x58080f4bc8a6 in av_get_packet libavformat/utils.c:104
#6 0x58080ef48889 in mov_read_packet libavformat/mov.c:10944
#7 0x58080eb10def in ff_read_packet libavformat/demux.c:649
#8 0x58080eb237ec in read_frame_internal libavformat/demux.c:1344
#9 0x58080eb45a6c in avformat_find_stream_info
libavformat/demux.c:2711
#10 0x58080d551777 in ifile_open fftools/ffmpeg_demux.c:1767
#11 0x58080d60d2c4 in open_files fftools/ffmpeg_opt.c:1363
#12 0x58080d60de8f in ffmpeg_parse_options fftools/ffmpeg_opt.c:1412
#13 0x58080d68dcd2 in main fftools/ffmpeg.c:974
#14 0x7f5b2b829d8f in __libc_start_call_main
../sysdeps/nptl/libc_start_call_main.h:58
Indirect leak of 112 byte(s) in 1 object(s) allocated from:
#0 0x7f5b2c4b557c in __interceptor_posix_memalign
../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:226
#1 0x580813e1ab7d in av_malloc libavutil/mem.c:107
#2 0x580813e1c60b in av_mallocz libavutil/mem.c:258
#3 0x58080d682ed8 in frame_data_ensure fftools/ffmpeg.c:408
#4 0x58080d683e85 in packet_data fftools/ffmpeg.c:467
#5 0x58080d5359fd in input_packet_process fftools/ffmpeg_demux.c:455
#6 0x58080d53c75f in input_thread fftools/ffmpeg_demux.c:768
#7 0x58080d63777f in task_wrapper fftools/ffmpeg_sched.c:2534
#8 0x7f5b2b894ac2 in start_thread nptl/pthread_create.c:442
Indirect leak of 48 byte(s) in 1 object(s) allocated from:
#0 0x7f5b2c4b557c in __interceptor_posix_memalign
../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:226
#1 0x580813e1ab7d in av_malloc libavutil/mem.c:107
#2 0x580813e1c60b in av_mallocz libavutil/mem.c:258
#3 0x580813d66001 in av_buffer_create libavutil/buffer.c:60
#4 0x58080d683045 in frame_data_ensure fftools/ffmpeg.c:412
#5 0x58080d683e85 in packet_data fftools/ffmpeg.c:467
#6 0x58080d5359fd in input_packet_process fftools/ffmpeg_demux.c:455
#7 0x58080d53c75f in input_thread fftools/ffmpeg_demux.c:768
#8 0x58080d63777f in task_wrapper fftools/ffmpeg_sched.c:2534
#9 0x7f5b2b894ac2 in start_thread nptl/pthread_create.c:442
Indirect leak of 48 byte(s) in 1 object(s) allocated from:
#0 0x7f5b2c4b557c in __interceptor_posix_memalign
../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:226
#1 0x580813e1ab7d in av_malloc libavutil/mem.c:107
#2 0x580813e1c60b in av_mallocz libavutil/mem.c:258
#3 0x580813d66001 in av_buffer_create libavutil/buffer.c:60
#4 0x580813d664fe in av_buffer_alloc libavutil/buffer.c:86
#5 0x580810e43f15 in av_grow_packet libavcodec/packet.c:160
#6 0x58080f4bc122 in append_packet_chunked libavformat/utils.c:71
#7 0x58080f4bc8a6 in av_get_packet libavformat/utils.c:104
#8 0x58080ef48889 in mov_read_packet libavformat/mov.c:10944
#9 0x58080eb10def in ff_read_packet libavformat/demux.c:649
#10 0x58080eb237ec in read_frame_internal libavformat/demux.c:1344
#11 0x58080eb45a6c in avformat_find_stream_info
libavformat/demux.c:2711
#12 0x58080d551777 in ifile_open fftools/ffmpeg_demux.c:1767
#13 0x58080d60d2c4 in open_files fftools/ffmpeg_opt.c:1363
#14 0x58080d60de8f in ffmpeg_parse_options fftools/ffmpeg_opt.c:1412
#15 0x58080d68dcd2 in main fftools/ffmpeg.c:974
#16 0x7f5b2b829d8f in __libc_start_call_main
../sysdeps/nptl/libc_start_call_main.h:58
Indirect leak of 24 byte(s) in 1 object(s) allocated from:
#0 0x7f5b2c4b557c in __interceptor_posix_memalign
../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:226
#1 0x580813e1ab7d in av_malloc libavutil/mem.c:107
#2 0x580813e1c60b in av_mallocz libavutil/mem.c:258
#3 0x580813d65d8d in buffer_create libavutil/buffer.c:44
#4 0x580813d66120 in av_buffer_create libavutil/buffer.c:64
#5 0x58080d683045 in frame_data_ensure fftools/ffmpeg.c:412
#6 0x58080d683e85 in packet_data fftools/ffmpeg.c:467
#7 0x58080d5359fd in input_packet_process fftools/ffmpeg_demux.c:455
#8 0x58080d53c75f in input_thread fftools/ffmpeg_demux.c:768
#9 0x58080d63777f in task_wrapper fftools/ffmpeg_sched.c:2534
#10 0x7f5b2b894ac2 in start_thread nptl/pthread_create.c:442
Indirect leak of 24 byte(s) in 1 object(s) allocated from:
#0 0x7f5b2c4b557c in __interceptor_posix_memalign
../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:226
#1 0x580813e1ab7d in av_malloc libavutil/mem.c:107
#2 0x580813e1c60b in av_mallocz libavutil/mem.c:258
#3 0x580813d65d8d in buffer_create libavutil/buffer.c:44
#4 0x580813d66120 in av_buffer_create libavutil/buffer.c:64
#5 0x580813d664fe in av_buffer_alloc libavutil/buffer.c:86
#6 0x580810e43f15 in av_grow_packet libavcodec/packet.c:160
#7 0x58080f4bc122 in append_packet_chunked libavformat/utils.c:71
#8 0x58080f4bc8a6 in av_get_packet libavformat/utils.c:104
#9 0x58080ef48889 in mov_read_packet libavformat/mov.c:10944
#10 0x58080eb10def in ff_read_packet libavformat/demux.c:649
#11 0x58080eb237ec in read_frame_internal libavformat/demux.c:1344
#12 0x58080eb45a6c in avformat_find_stream_info
libavformat/demux.c:2711
#13 0x58080d551777 in ifile_open fftools/ffmpeg_demux.c:1767
#14 0x58080d60d2c4 in open_files fftools/ffmpeg_opt.c:1363
#15 0x58080d60de8f in ffmpeg_parse_options fftools/ffmpeg_opt.c:1412
#16 0x58080d68dcd2 in main fftools/ffmpeg.c:974
#17 0x7f5b2b829d8f in __libc_start_call_main
../sysdeps/nptl/libc_start_call_main.h:58
}}}
Found by：
{{{
Found by 0x20z
}}}
Thank you for your time and attention
--
Ticket URL: <https://trac.ffmpeg.org/ticket/11419>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
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