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On 2019-11-30T23:38:36+00:00 Balint Reczey wrote:

Created attachment 12095
Patch adjusting offset to stay in the file

This itself was tolerated for long time, but WSL's ELF loader crashes
due to the offset and it seems to be easy to fix.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/gzip/+bug/1843479/comments/7


** Changed in: binutils
       Status: Unknown => New

** Changed in: binutils
   Importance: Unknown => Medium

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https://bugs.launchpad.net/bugs/1843479

Title:
  gzip in Ubuntu Eoan results in Exec format error on WSL1

Status in binutils:
  New
Status in binutils package in Ubuntu:
  In Progress
Status in gzip package in Ubuntu:
  In Progress

Bug description:
  Summary:

  Running gzip on WSL1 results in the following error:

  $ gzip
  -bash: /bin/gzip: cannot execute binary file: Exec format error

  What I expect to happen:

  gzip executes correctly on WSL1.

  What happens instead:

  gzip fails with an Exec format error.

  Notes:

  I suspect a change in how gzip is being built for Eoan is causing
  issues with ELF parsing on the WSL1 translation layer. For example:

  On Disco with gzip 1.9-3:

  $ file /bin/gzip
  /bin/gzip: ELF 64-bit LSB pie executable, x86-64, version 1 (SYSV), 
dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 
3.2.0, BuildID[sha1]=efa859c26eaf8e035efe9a139361e2a60cd17b3e, stripped

  On Eoan with gzip 1.10-0ubuntu3:

  $ file /bin/gzip
  /bin/gzip: ELF 64-bit LSB pie executable, x86-64, version 1 (SYSV), 
dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, 
BuildID[sha1]=bc0f5994544c2a469d04c914bf4bf44b4ded6040, for GNU/Linux 3.2.0, 
stripped

  Eoan ships with gzip 1.10, while Disco ships with gzip 1.9, but I do
  not believe this is an issue in 1.10 because this error does not occur
  when building gzip from GNU project source on Ubuntu Eoan.

  Justifications:

  WSL1 will need to be patched in future Windows builds for this change
  in ELF. However that patch will likely not be backported to older
  builds of Windows, including Windows Enterprise/Server 2019.

  To ensure Eoan can run on current and older builds of Windows Ubuntu
  should consider looking at how it's building gzip and see if it can be
  made to 'play nice' until WSL1 can be updated.

  This was originally reported here:
  https://github.com/microsoft/WSL/issues/4461

  Details:

  Description:    Ubuntu Eoan Ermine (development branch)
  Release:        19.10

  gzip:
    Installed: 1.10-0ubuntu3
    Candidate: 1.10-0ubuntu3
    Version table:
   *** 1.10-0ubuntu3 500
          500 http://archive.ubuntu.com/ubuntu eoan/main amd64 Packages
          100 /var/lib/dpkg/status

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