Public bug reported:
I get this in email every night:
/etc/cron.daily/ubuntu-advantage-tools:
ERROR: ld.so: object '/usr/lib/libesets_pac.so' from /etc/ld.so.preload cannot
be preloaded (cannot open shared object file): ignored.
ERROR: ld.so: object '/usr/lib/libesets_pac.so' from /etc/ld.so.preload cannot
be preloaded (cannot open shared object file): ignored.
NOTE: The shared library in question is part of the ESET antivirus
software for Linux. This is NOT a bug in ESET; the shared library path
referenced above is a symlink to a valid 64-bit shared library that
regular (non-snap) processes are able to preload just fine.
I dug into this, and /etc/cron.daily/ubuntu-advantage-tools calls
/usr/bin/ubuntu-advantage status, which calls /snap/bin/canonical-
livepatch status, which ends up calling snap-confine, which then fails
to open the shared library file:
open("/usr/lib/libesets_pac.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No
such file or directory)
I assume this is because snap-confine is doing a chroot or something
like that.
I'm not sure what the right fix is here. Is snap creating a copy of
/etc/ld.so.preload in its chroot? If so, should it strip out preloads
that aren't in the chroot?
I mean, we can argue about whether it's appropriate to be confining snap
processes in such a way that preloads can't be loaded, but if that's the
right decision, then it shouldn't complain about them.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: snap (not installed)
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Apr 30 11:32:56 2018
InstallationDate: Installed on 2017-05-19 (345 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
SourcePackage: snap
UpgradeStatus: Upgraded to bionic on 2018-04-27 (3 days ago)
** Affects: snap (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic
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https://bugs.launchpad.net/bugs/1768065
Title:
snaps complain about being unable to open ld preloads
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