read of /proc/uptime could fail and cause exit

Bug #1708461 reported by Scott Moser on 2017-08-03
This bug affects 1 person
Affects Status Importance Assigned to Milestone
pollinate (Ubuntu)

Bug Description

As i noticed when reviewing changes for bug 1708192, I noticed that
the read of /proc/uptime could fail.

This is re-creatable with something like this:
$ mp=/tmp/my.d
$ mkdir -p $mp
$ sudo mount --bind / $mp

# need /dev/ mounted for 'logger' usage (/dev/log) which is also fatal
$ sudo mount --bind /dev $mp/dev

# need /run because in systemd systems, /dev/log is a link to
# /run/systemd/journal/dev-log
$ sudo mount --bind /run $mp/run
$ sudo chroot $mp pollinate --reseed
<13>Aug 3 14:06:32 pollinate[6449]: system was previously seeded at [2017-08-02 18:11:17.357060419 +0000]
<13>Aug 3 14:06:32 pollinate[6449]: client sent challenge to []
grep: /proc/cpuinfo: No such file or directory
/usr/bin/pollinate: 102: /usr/bin/pollinate: cannot open /proc/uptime: No such file
$ echo $?

Scott Moser (smoser) on 2017-08-03
Changed in pollinate (Ubuntu):
status: New → Confirmed
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package pollinate - 4.26-1

pollinate (4.26-1) artful; urgency=medium

  [ Scott Moser ]
  * Perform as safe read of /proc/uptime LP: #1708461

  [ Dimitri John Ledkov ]
  * Drop upstart system job
  * Drop no longer needed build-deps, and redundantly specified essential
  * Fix spelling typo in the description
  * Bump debhelper compat to 9, previous levels are deprecated

 -- Dimitri John Ledkov <email address hidden> Fri, 18 Aug 2017 13:19:15 +0100

Changed in pollinate (Ubuntu):
status: Confirmed → Fix Released
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