[FFmpeg-trac] #8315(undetermined:new): memory leaks in av_dict_set()

FFmpeg trac at avcodec.org
Sat Oct 19 19:49:35 EEST 2019


#8315: memory leaks in av_dict_set()
-------------------------------------+-------------------------------------
             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're memory leaks detected in av_dict_set()
 How to reproduce:
 {{{
 % ffmpeg_g -y -i $PoC1 -i $PoC2 -filter_complex acompressor -target dvd
 -loglevel 0 -c pcm_s24le tmp.dnxhd

 ffmpeg version N-95464-g7056ddc0e0 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

 {{{
 ==36149== HEAP SUMMARY:
 ==36149==     in use at exit: 1,046 bytes in 61 blocks
 ==36149==   total heap usage: 643 allocs, 582 frees, 2,630,129 bytes
 allocated
 ==36149==
 ==36149== 54 (16 direct, 38 indirect) bytes in 1 blocks are definitely
 lost in loss record 40 of 44
 ==36149==    at 0x9FE3E76: memalign (in /usr/lib/valgrind
 /vgpreload_memcheck-amd64-linux.so)
 ==36149==    by 0x9FE3F91: posix_memalign (in /usr/lib/valgrind
 /vgpreload_memcheck-amd64-linux.so)
 ==36149==    by 0x592F079: av_malloc (mem.c:87)
 ==36149==    by 0x592F079: av_mallocz (mem.c:238)
 ==36149==    by 0x58EA3CC: av_dict_set (dict.c:89)
 ==36149==    by 0x45D36E: new_output_stream (ffmpeg_opt.c:1554)
 ==36149==    by 0x455A25: new_audio_stream (ffmpeg_opt.c:1860)
 ==36149==    by 0x4508EC: init_output_filter (ffmpeg_opt.c:2062)
 ==36149==    by 0x43481F: open_output_file (ffmpeg_opt.c:2187)
 ==36149==    by 0x42DE5E: open_files (ffmpeg_opt.c:3283)
 ==36149==    by 0x42DC06: ffmpeg_parse_options (ffmpeg_opt.c:3337)
 ==36149==    by 0x487BB3: main (ffmpeg.c:4862)
 ==36149==
 ==36149== LEAK SUMMARY:
 ==36149==    definitely lost: 16 bytes in 1 blocks
 ==36149==    indirectly lost: 38 bytes in 3 blocks
 ==36149==      possibly lost: 0 bytes in 0 blocks
 ==36149==    still reachable: 992 bytes in 57 blocks
 ==36149==         suppressed: 0 bytes in 0 blocks
 ==36149== Reachable blocks (those to which a pointer was found) are not
 shown.
 ==36149== To see them, rerun with: --leak-check=full --show-leak-kinds=all
 ==36149==
 ==36149== For counts of detected and suppressed errors, rerun with: -v
 ==36149== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)


 }}}
 Please confirm.
 Thanks

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8315>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


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