[FFmpeg-trac] #4587(avcodec:new): ouf-of-boundry memory access in cabac(H264)

FFmpeg trac at avcodec.org
Fri Jun 5 05:06:09 CEST 2015


#4587: ouf-of-boundry memory access in cabac(H264)
-------------------------------------+-----------------------------------
             Reporter:  rakexue      |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:  avcodec
              Version:  unspecified  |               Resolution:
             Keywords:  H264 crash   |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-----------------------------------

Comment (by rakexue):

 {{{
 Address: 00000000
 Retrace CallStack:
 SIGBUS(UNKNOWN_SIGBUS): SIGBUS
          #00  pc 00076f6c  /data/data/xxxx/libffmpeg_neon.so
          #01  pc 00078428  /data/data/xxxx/libffmpeg_neon.so
          #02  pc 0007aca4  /data/data/xxxx/libffmpeg_neon.so
 (ff_h264_decode_mb_cabac +1d47)
          #03  pc 000d38f6  /data/data/xxxx/libffmpeg_neon.so
          #04  pc 000d6a04  /data/data/xxxx/libffmpeg_neon.so
 (ff_h264_execute_decode_slices +47)
          #05  pc 000a5bd6  /data/data/xxxx/libffmpeg_neon.so
          #06  pc 000a6634  /data/data/xxxx/libffmpeg_neon.so
          #07  pc 001080d2  /data/data/xxxx/libffmpeg_neon.so
          #08  pc 00011e00  /system/lib/libc.so (__thread_entry +30)
          #09  pc 000119cc  /system/lib/libc.so (pthread_create +b4)
 }}}
 [[Image(20150605094335.png)]]

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4587#comment:2>
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