[Bug 1634488] Re: zsh: segmentation fault (core dumped) sudo -i

[Hadmut Danisch]

Sorry, I've made a mistake. The bug occured with the tcsh, not the zsh.
A usermod to set the shell to zsh had failed, and the bug message
mentioning zsh came from the outer zsh (from where sudo was run), that's
why I believed a zsh had crashed.


** Changed in: zsh (Ubuntu)
       Status: New => Invalid

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Title:
  zsh: segmentation fault (core dumped)  sudo -i

Status in zsh package in Ubuntu:
  Invalid

Bug description:
  Hi,

  since I've upgraded from 16.04 to 16.10, the zsh crashes quite often
  with a segmentation fault.

  I've noticed that this occurs not always, but if, then always in these
  two cases:

  - calling ls (in my case an alias for ls -F and thus the internal ls
  function)

  - using file name completion

  which both are related to opening directories and reading their
  contents. I've done a strace, which seems to confirm this (crashing
  within ls):

  ...

  6781  open(".", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 3
  6781  fstat(3, {st_mode=S_IFDIR|0700, st_size=806, ...}) = 0
  6781  lseek(3, 0, SEEK_SET)             = 0
  6781  --- SIGSEGV {si_signo=SIGSEGV, si_code=SI_KERNEL, si_addr=0} ---
  6781  +++ killed by SIGSEGV (core dumped) +++

  
  which again implies problems pretty close to opening directories. 

  regards

  ProblemType: Bug
  DistroRelease: Ubuntu 16.10
  Package: zsh 5.2-5ubuntu1
  ProcVersionSignature: Ubuntu 4.4.0-43.63-generic 4.4.21
  Uname: Linux 4.4.0-43-generic x86_64
  NonfreeKernelModules: zunicode zcommon znvpair zavl
  ApportVersion: 2.20.3-0ubuntu8
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Tue Oct 18 14:31:18 2016
  InstallationDate: Installed on 2016-04-22 (178 days ago)
  InstallationMedia: Lubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420)
  SourcePackage: zsh
  UpgradeStatus: Upgraded to yakkety on 2016-10-17 (1 days ago)

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