Looks like the upstream fix makes many dynamic libraries wrongly detected as 'pie executable's. https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=906727
** Bug watch added: Debian Bug tracker #906727 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=906727 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to file in Ubuntu. https://bugs.launchpad.net/bugs/1747711 Title: file mis-identifies modern executables as application/x-sharedlib Status in file package in Ubuntu: Confirmed Bug description: file doesn't recognize modern PIE (Position Independent Executable) x86 executables as such, reporting them as “application/x-sharedlib”. Consequently, only non-PIE executables can be opened in graphical file managers such as nautilus. This may cause a minor (?) security risk if a commonly-published workaround is attempted. Expected behaviour: $ echo "int main() { return 0; }" > foo.c $ gcc -o foo foo.c $ file foo foo: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=6e7749f995a89a53f74ec29d3c16fcf3f56be90f, not stripped $ file --mime-type foo foo: application/x-executable Actual behaviour: $ echo "int main() { return 0; }" > foo.c $ gcc -o foo foo.c $ file foo foo: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=6e7749f995a89a53f74ec29d3c16fcf3f56be90f, not stripped $ file --mime-type foo foo: application/x-sharedlib Workaround (unsafe?): $ echo "int main() { return 0; }" > foo.c $ gcc -o foo-nopie foo.c -no-pie $ file foo-nopie foo-nopie: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=3eb8c581f43c19997e3c828f5a9730dbdc794470, not stripped $ file --mime-type foo-nopie foo-nopie: application/x-executable gcc now defaults to building with PIE enabled for security reasons. Also affects: nautilus (and likely other graphical file managers like those on Lubuntu) - because nautilus uses mime-type to determine if a file is executable, double-click to run a program no longer works. Also noted on: Gnome Bugs - https://bugzilla.gnome.org/show_bug.cgi?id=737849 (2014) - before PIE became the default build option. This may be an upstream issue. This may not affect architectures outside x86.* ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: file 1:5.32-1 ProcVersionSignature: Ubuntu 4.13.0-32.35-generic 4.13.13 Uname: Linux 4.13.0-32-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.7 Architecture: amd64 CurrentDesktop: GNOME Date: Tue Feb 6 11:21:20 2018 InstallationDate: Installed on 2017-05-11 (270 days ago) InstallationMedia: Ubuntu-GNOME 17.04 "Zesty Zapus" - Release amd64 (20170412) SourcePackage: file UpgradeStatus: Upgraded to artful on 2017-10-21 (108 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/file/+bug/1747711/+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
