[FFmpeg-trac] #8286(undetermined:new): memory leaks
FFmpeg
trac at avcodec.org
Wed Oct 16 17:53:03 EEST 2019
#8286: memory leaks
-------------------------------------+-------------------------------------
Reporter: Suhwan | 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:
There are memory leaks
How to reproduce:
{{{
% ffmpeg_g -y -i $PoC -loglevel 0 -map 0 tmp.dnxhd
ffmpeg version N-95389-gdd01947397 Copyright (c) 2000-2019 the FFmpeg
developers
built with clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
configuration: --cc=clang --cxx=clang++ --ld=clang --enable-debug
}}}
Here's Valgrind log
{{{
==11233== HEAP SUMMARY:
==11233== in use at exit: 1,096 bytes in 2 blocks
==11233== total heap usage: 4,677 allocs, 4,675 frees, 10,283,849 bytes
allocated
==11233==
==11233== 1,064 bytes in 1 blocks are definitely lost in loss record 2 of
2
==11233== at 0x9D3CE76: memalign (in /usr/lib/valgrind
/vgpreload_memcheck-amd64-linux.so)
==11233== by 0x9D3CF91: posix_memalign (in /usr/lib/valgrind
/vgpreload_memcheck-amd64-linux.so)
==11233== by 0x590E87D: av_malloc (mem.c:87)
==11233== by 0x2D4ED80: avcodec_alloc_context3 (options.c:158)
==11233== by 0x215433C: ff_frame_thread_encoder_init
(frame_thread_encoder.c:198)
==11233== by 0x344D79F: avcodec_open2 (utils.c:740)
==11233== by 0x4A67F1: init_output_stream (ffmpeg.c:3507)
==11233== by 0x48C2DB: transcode_step (ffmpeg.c:4599)
==11233== by 0x48C2DB: transcode (ffmpeg.c:4682)
==11233== by 0x487D53: main (ffmpeg.c:4884)
==11233==
==11233== LEAK SUMMARY:
==11233== definitely lost: 1,064 bytes in 1 blocks
==11233== indirectly lost: 0 bytes in 0 blocks
==11233== possibly lost: 0 bytes in 0 blocks
==11233== still reachable: 32 bytes in 1 blocks
==11233== suppressed: 0 bytes in 0 blocks
==11233== Reachable blocks (those to which a pointer was found) are not
shown.
==11233== To see them, rerun with: --leak-check=full --show-leak-kinds=all
==11233==
==11233== For counts of detected and suppressed errors, rerun with: -v
==11233== ERROR SUMMARY: 82534 errors from 137 contexts (suppressed: 0
from 0)
}}}
ASAN log.
{{{
=================================================================
==8850==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 1064 byte(s) in 1 object(s) allocated from:
#0 0x4de9e8 in posix_memalign (ffmpeg_asan+0x4de9e8)
#1 0x8593011 in av_malloc ffmpeg/libavutil/mem.c:87:9
#2 0x463700a in avcodec_alloc_context3
ffmpeg/libavcodec/options.c:158:28
#3 0x50f32f9 in avcodec_open2 ffmpeg/libavcodec/utils.c:740:15
#4 0x61c29b in init_output_stream ffmpeg/fftools/ffmpeg.c:3507:20
#5 0x5e509d in transcode_step ffmpeg/fftools/ffmpeg.c:4599:19
#6 0x5e509d in transcode ffmpeg/fftools/ffmpeg.c:4682
#7 0x5db65b in main ffmpeg/fftools/ffmpeg.c:4884:9
#8 0x7f13edc0cb96 in __libc_start_main /build/glibc-
OTsEL5/glibc-2.27/csu/../csu/libc-start.c:310
SUMMARY: AddressSanitizer: 1064 byte(s) leaked in 1 allocation(s).
}}}
Please confirm.
Thanks
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8286>
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