dh_strip does strip --remove-section=.comment --remove-section=.note --strip-unneeded -o /tmp/OdGxqpWWsW/stripeIrB_j debian/virtualbox/usr/lib/virtualbox/VBoxSDL.so cat '/tmp/OdGxqpWWsW/stripeIrB_j' > 'debian/virtualbox/usr/lib/virtualbox/VBoxSDL.so'
which behaves differently under root and non-root. specifically `cat anything > file` will strip setuid bits from file, irrespective of umask. As root: cat /dev/null > foo chmod +s foo ls -latr foo -rwSr-Sr-- 1 root root 0 Aug 4 18:36 foo cat /dev/null > foo ls -latr foo -rwSr-Sr-- 1 root root 0 Aug 4 18:36 foo As mere mortal: cat /dev/null > foo chmod +s foo ls -latr foo -rwSr-Sr-- 1 xnox xnox 0 Aug 4 18:34 foo cat /dev/null > foo ls -latr foo -rw-r-Sr-- 1 xnox xnox 0 Aug 4 18:34 foo I really do not understand why mere-mortal strips user uid, keeps group uid, and root doesn't do that. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to binutils in Ubuntu. https://bugs.launchpad.net/bugs/1938886 Title: rrr:no dh_strip or strip loose setuid bit Status in bash package in Ubuntu: New Status in binutils package in Ubuntu: New Status in dash package in Ubuntu: New Status in debhelper package in Ubuntu: New Status in debugedit package in Ubuntu: New Status in linux package in Ubuntu: New 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1938886/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
