[Bug 1938886] Re: rrr:no dh_strip or strip loose setuid bit

[Launchpad Bug Tracker]

This bug was fixed in the package debhelper - 13.3.4ubuntu2

---------------
debhelper (13.3.4ubuntu2) impish; urgency=medium

  * objcopy/strip changed in 2.36.1, not keeping file attributes of the
    original file. Work around that in dh_strip to write to a temporary
    file, copying attributes, cat'ing this to the original file, copying
    attributes again to keep the original attributes. LP: #1938886

 -- Dimitri John Ledkov <dimitri.ledkov at canonical.com>  Wed, 04 Aug 2021
19:23:25 +0100

** Changed in: debhelper (Ubuntu)
       Status: Triaged => Fix Released

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https://bugs.launchpad.net/bugs/1938886

Title:
  rrr:no dh_strip or strip loose setuid bit

Status in bash package in Ubuntu:
  Invalid
Status in binutils package in Ubuntu:
  New
Status in dash package in Ubuntu:
  Invalid
Status in debhelper package in Ubuntu:
  Fix Released
Status in debugedit package in Ubuntu:
  Invalid
Status in linux package in Ubuntu:
  Invalid
Status in virtualbox package in Ubuntu:
  New

Bug description:
  Over at https://launchpadlibrarian.net/550715513/buildlog_ubuntu-
  hirsute-amd64.virtualbox_6.1.22-dfsg-2~ubuntu1.21.04.2_BUILDING.txt.gz

  I have rebuilt an earlier version of virtualbox, that sets Rules-
  Requires-Root: no and added extra ls statements to find where/when/why
  setuid bits are getting lost after fixperms.

  make[1]: Leaving directory '/<<PKGBUILDDIR>>'
     debian/rules override_dh_strip
  make[1]: Entering directory '/<<PKGBUILDDIR>>'
  ls -latr debian/virtualbox/usr/lib/virtualbox/VBoxSDL
  -rwsr-sr-x 1 buildd buildd 406808 Jul 29 14:34 debian/virtualbox/usr/lib/virtualbox/VBoxSDL
  ...
  dh_strip --dbgsym-migration='virtualbox-dbg'
  debugedit: debian/virtualbox/usr/lib/virtualbox/VBoxSDL.so: Unknown DWARF DW_FORM_0x1f20
  a7cf3c43c8b18c3261d2d4737a475bf730ad1554

  ls -latr debian/virtualbox/usr/lib/virtualbox/VBoxSDL
  -rwxr-xr-x 1 buildd buildd 166208 Jul 29 14:35 debian/virtualbox/usr/lib/virtualbox/VBoxSDL

  It seems to me that either dh_strip or something it calls (strip,
  debugedit) looses the setuid permission in hirsute and up.

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