** Attachment added: "StacktraceSource.txt"
   
https://bugs.launchpad.net/bugs/1807823/+attachment/5221056/+files/StacktraceSource.txt

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https://bugs.launchpad.net/bugs/1807823

Title:
  libsndfile crashed with SIGSEGV in wav_w64_read_fmt_chunk()

Status in libsndfile package in Ubuntu:
  New

Bug description:
  - When running 'sndfile-info' program from 'sndfile-programs' package, the 
program crashed while trying to write on invalid memory address. The crash 
point is wav_w64_read_fmt_chunk() function of libsndfile.so, so the bug seems 
to reside in 'libsndfile' package.
  - 'sndfile-play' program from 'sndfile-programs' package also crashes with 
the same input.

  ProblemType: Crash
  DistroRelease: Ubuntu 16.04
  Package: sndfile-programs 1.0.25-10ubuntu0.16.04.1
  ProcVersionSignature: Ubuntu 4.15.0-42.45~16.04.1-generic 4.15.18
  Uname: Linux 4.15.0-42-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Mon Dec 10 22:51:36 2018
  ExecutablePath: /usr/bin/sndfile-info
  InstallationDate: Installed on 2018-12-06 (5 days ago)
  InstallationMedia: Ubuntu 16.04.5 LTS "Xenial Xerus" - Release amd64 
(20180731)
  ProcCmdline: sndfile-info crash-0_00018173
  SegvAnalysis:
   Segfault happened at: 0x7ff526d6a3d1 <wav_w64_read_fmt_chunk+2513>:  movb   
$0x0,0x10(%rbx,%rcx,1)
   PC (0x7ff526d6a3d1) ok
   source "$0x0" ok
   destination "0x10(%rbx,%rcx,1)" (0x100d4b42f) not located in a known VMA 
region (needed writable region)!
  SegvReason: writing unknown VMA
  Signal: 11
  SourcePackage: libsndfile
  StacktraceTop:
   wav_w64_read_fmt_chunk (psf=psf@entry=0xd4b420, fmtsize=875972178) at 
wav_w64.c:333
   rf64_read_header (framesperblock=<synthetic pointer>, blockalign=<synthetic 
pointer>, psf=0xd4b420) at rf64.c:224
   rf64_open (psf=psf@entry=0xd4b420) at rf64.c:88
   psf_open_file (psf=0xd4b420, sfinfo=sfinfo@entry=0x7ffd71fd0930) at 
sndfile.c:2746
   sf_open (path=path@entry=0x7ffd71fd2301 "crash-0_00018173", 
mode=mode@entry=16, sfinfo=sfinfo@entry=0x7ffd71fd0930) at sndfile.c:333
  Title: sndfile-info crashed with SIGSEGV in wav_w64_read_fmt_chunk()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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