Opened 6 years ago

Closed 5 years ago

Last modified 5 years ago

#1335 closed defect (fixed)

Memleak when reading corrupted cavs video

Reported by: cehoyos Owned by:
Priority: normal Component: avcodec
Version: git-master Keywords: leak cavs roundup
Cc: Blocked By:
Blocking: Reproduced by developer: yes
Analyzed by developer: no

Description

(Sample from issue 2180)

$ valgrind --leak-check=full ./ffmpeg_g -i cavs_cut.avs
==31642== Memcheck, a memory error detector.
==31642== Copyright (C) 2002-2007, and GNU GPL'd, by Julian Seward et al.
==31642== Using LibVEX rev 1732, a library for dynamic binary translation.
==31642== Copyright (C) 2004-2007, and GNU GPL'd, by OpenWorks LLP.
==31642== Using valgrind-3.2.3, a dynamic binary instrumentation framework.
==31642== Copyright (C) 2000-2007, and GNU GPL'd, by Julian Seward et al.
==31642== For more details, rerun with: -v
==31642==
ffmpeg version N-40924-g349c624 Copyright (c) 2000-2012 the FFmpeg developers
  built on May 21 2012 10:01:24 with gcc 4.3.2
  configuration: --cc=/usr/local/gcc-4.3.2/bin/gcc --disable-optimizations
  libavutil      51. 53.100 / 51. 53.100
  libavcodec     54. 21.101 / 54. 21.101
  libavformat    54.  5.101 / 54.  5.101
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 75.100 /  2. 75.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 15.100 /  0. 15.100
Truncating packet of size 2012 to 13
[cavs @ 0x4430480] Found 1 unreleased buffers!
Truncating packet of size 2012 to 13
Input #0, mpeg, from 'cavs_cut.avs':
  Duration: 00:00:01.20, start: 0.220000, bitrate: 1761 kb/s
    Stream #0:0[0x1e0]: Video: cavs, yuv420p, 720x576, 25 fps, 25 tbr, 90k tbn, 25 tbc
    Stream #0:1[0x1c0]: Audio: mp2, 48000 Hz, stereo, s16, 160 kb/s
At least one output file must be specified
==31642==
==31642== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 3 from 1)
==31642== malloc/free: in use at exit: 307,476 bytes in 9 blocks.
==31642== malloc/free: 553 allocs, 544 frees, 2,340,145 bytes allocated.
==31642== For counts of detected errors, rerun with: -v
==31642== searching for pointers to 9 not-freed blocks.
==31642== checked 6,440,056 bytes.
==31642==
==31642== 138,940 bytes in 7 blocks are definitely lost in loss record 1 of 2
==31642==    at 0x4021A50: memalign (in /usr/lib/valgrind/x86-linux/vgpreload_memcheck.so)
==31642==    by 0x4021AAA: posix_memalign (in /usr/lib/valgrind/x86-linux/vgpreload_memcheck.so)
==31642==    by 0x875B1CE: av_malloc (mem.c:95)
==31642==    by 0x875B349: av_mallocz (mem.c:187)
==31642==    by 0x842FD83: ff_MPV_common_init (mpegvideo.c:734)
==31642==    by 0x8235C39: decode_pic (cavsdec.c:477)
==31642==    by 0x8236EC4: cavs_decode_frame (cavsdec.c:704)
==31642==    by 0x852E22D: avcodec_decode_video2 (utils.c:1464)
==31642==    by 0x81BF16B: try_decode_frame (utils.c:2313)
==31642==    by 0x81C05F8: avformat_find_stream_info (utils.c:2629)
==31642==    by 0x805A4A1: opt_input_file (ffmpeg.c:4337)
==31642==    by 0x80610E0: parse_option (cmdutils.c:305)
==31642==
==31642==
==31642== 168,536 bytes in 2 blocks are possibly lost in loss record 2 of 2
==31642==    at 0x4021A50: memalign (in /usr/lib/valgrind/x86-linux/vgpreload_memcheck.so)
==31642==    by 0x4021AAA: posix_memalign (in /usr/lib/valgrind/x86-linux/vgpreload_memcheck.so)
==31642==    by 0x875B1CE: av_malloc (mem.c:95)
==31642==    by 0x875B349: av_mallocz (mem.c:187)
==31642==    by 0x8430539: ff_MPV_common_init (mpegvideo.c:781)
==31642==    by 0x8235C39: decode_pic (cavsdec.c:477)
==31642==    by 0x8236EC4: cavs_decode_frame (cavsdec.c:704)
==31642==    by 0x852E22D: avcodec_decode_video2 (utils.c:1464)
==31642==    by 0x81BF16B: try_decode_frame (utils.c:2313)
==31642==    by 0x81C05F8: avformat_find_stream_info (utils.c:2629)
==31642==    by 0x805A4A1: opt_input_file (ffmpeg.c:4337)
==31642==    by 0x80610E0: parse_option (cmdutils.c:305)
==31642==
==31642== LEAK SUMMARY:
==31642==    definitely lost: 138,940 bytes in 7 blocks.
==31642==      possibly lost: 168,536 bytes in 2 blocks.
==31642==    still reachable: 0 bytes in 0 blocks.
==31642==         suppressed: 0 bytes in 0 blocks.

Attachments (1)

cavs_cut.avs (258.0 KB) - added by cehoyos 6 years ago.

Download all attachments as: .zip

Change History (4)

Changed 6 years ago by cehoyos

comment:1 Changed 5 years ago by michael

  • Reproduced by developer set
  • Resolution set to fixed
  • Status changed from new to closed

comment:2 Changed 5 years ago by cehoyos

  • Keywords roundup added

comment:3 Changed 5 years ago by cehoyos

  • Keywords leak added; memleak removed
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