[Bug 123447] Re: avimerge crashed with SIGSEGV in __libc_start_main()

[Kees Cook]

** Description changed:

  Binary package hint: transcode
  
  Merging two AVI files directly from a Canon Powershot G5 camera results
  in SEGV, seemingly when the second AVI starts to be concatenated:
  
  $ avimerge -o /tmp/foo.avi -i MVI_0240.AVI MVI_0246.AVI 
  scanning file MVI_0240.AVI for video/audio parameter
  [avilib] V: 30.000 fps, codec=MJPG, frames=4285, width=640, height=480
  [avilib] A: 44100 Hz, format=0x01, bits=16, channels=1, bitrate=705 kbps,
  [avilib]    143 chunks, 12597900 bytes, CBR
  merging multiple AVI-files (concatenating) ...
  file 01 MVI_0240.AVI
  [MVI_0240.AVI] (000000-004284) (142831.90 <-> 142833.33)
  Segmentation fault (core dumped)
  
  ProblemType: Crash
  Architecture: amd64
  CrashCounter: 1
  Date: Sun Jul  1 23:04:59 2007
  DistroRelease: Ubuntu 7.10
  ExecutablePath: /usr/bin/avimerge
  NonfreeKernelModules: nvidia
  Package: transcode 2:1.0.2-0.8ubuntu4
  PackageArchitecture: amd64
  ProcCmdline: avimerge -o /tmp/foo.avi -i MVI_0240.AVI MVI_0246.AVI
  ProcCwd: /store/users/daniel/incoming/bath-tiff1
  ProcEnviron:
   SHELL=/bin/bash
   PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
   LANG=en_GB.UTF-8
   LANGUAGE=en_GB.UTF-8
  Signal: 11
  SourcePackage: transcode
  StacktraceTop:
   ?? ()
   ?? ()
   ?? ()
   __libc_start_main () from /lib/libc.so.6
   ?? ()
  Title: avimerge crashed with SIGSEGV in __libc_start_main()
  Uname: Linux veyron 2.6.22-7-generic #1 SMP Mon Jun 25 17:07:55 GMT 2007 x86_64 GNU/Linux
  UserGroups: adm admin audio cdrom dialout dip floppy kvm lpadmin plugdev scanner video
+ SegvAnalysis:
+  Segfault happened at: 0x406a49 <write at plt+22337>:	mov    (%rdi,%rbx,1),%rax
+  PC (0x00406a49) ok
+  source "(%rdi,%rbx,1)" (0x15888001d7c00) not located in a known VMA region (needed readable region)!
+  destination "%rax" ok
+ SegvReason: reading unknown VMA

-- 
avimerge crashed with SIGSEGV in __libc_start_main()
https://bugs.launchpad.net/bugs/123447
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