[Bug 186366] Re: cpio segfaults with "-E" on a non-existing file

[David Edwards]

I came across this whilst searching for help with a (likely different)
segmentation fault with cpio in 12.04. And this bug still exists in
12.04!

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https://bugs.launchpad.net/bugs/186366

Title:
  cpio segfaults with "-E" on a non-existing file

Status in GNU cpio:
  Unknown
Status in “cpio” package in Ubuntu:
  Triaged

Bug description:
  Binary package hint: cpio

  Ubuntu release information (lsb_release -a):

  Distributor ID: Ubuntu
  Description:    Ubuntu 7.10
  Release:        7.10Codename:       gutsy

  Package version: 2.8-1ubuntu2

  Problem: cpio segfaults when -E option is used on a non-existing file.
  Eg:

  $ cpio -E no_such_file -t
  cpio: no_such_file: Cannot open: No such file or directory
  Segmentation fault (core dumped)

  GDB backtrace (after recompiling the package with
  "DEB_BUILD_OPTIONS=nostrip,debug"):

  #0  0xb7e1f46d in getc () from /lib/tls/i686/cmov/libc.so.6
  #1  0x0804f983 in ds_fgetstr (f=0x0, s=0xbfe533c0, eos=10 '\n') at dstring.c:74
  #2  0x0804b8c8 in process_copy_in () at copyin.c:947
  #3  0x08050cc0 in main (argc=128, argv=0x806b6f8) at main.c:794

  LAST TESTED VERSION: Maverick

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