[Bug 1838871] Re: man-db segmentation fault after processing trigger

[EoflaOE]

Thanks for fixing! Now man-db is stable. I can read all man-pages.

For everyone who has the defected version should do "sudo apt update"
and "sudo apt dist-upgrade" to fix and repopulate all man-pages without
failure.

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https://bugs.launchpad.net/bugs/1838871

Title:
  man-db segmentation fault after processing trigger

Status in man-db package in Ubuntu:
  Fix Released
Status in man-db package in Debian:
  Unknown

Bug description:
  Almost every time I tried to install a package which processes trigger
  for man-db at the end of the setting up phase using apt, I get the
  segfault. The message "Segmentation fault (Core dumped)" appears.

  I expected mandb to finish repopulating the mandb database so all the
  manual pages can be accessed via the "man" command. Instead, I got
  segmentation faults whenever it tries to populate mandb database.

  It seems that there are invalid characters passed somewhere, but it
  shouldn't cause segmentation faults like this.

  Here's an example of man-db segfaulting whenever I try to install a
  package: https://paste.ubuntu.com/p/wXsnfWvs8t/

  Here's the output of dmesg: https://termbin.com/wtfd

  Here's the output of mandb --debug:
  https://paste.ubuntu.com/p/7RbFrFv5t9/

  Output of lsb_release -rd:

  Description:	Ubuntu Eoan Ermine (development branch)
  Release:	19.10

  Output of apt-cache policy man-db:

  man-db:
    Installed: 2.8.6-1
    Candidate: 2.8.6-1
    Version table:
   *** 2.8.6-1 500
          500 http://sy.archive.ubuntu.com/ubuntu eoan/main amd64 Packages
          100 /var/lib/dpkg/status

  ProblemType: Bug
  DistroRelease: Ubuntu 19.10
  Package: man-db 2.8.6-1
  ProcVersionSignature: Ubuntu 5.2.0-8.9-generic 5.2.0
  Uname: Linux 5.2.0-8-generic x86_64
  ApportVersion: 2.20.11-0ubuntu7
  Architecture: amd64
  CurrentDesktop: Budgie:GNOME
  Date: Sun Aug  4 13:00:02 2019
  InstallationDate: Installed on 2019-08-03 (0 days ago)
  InstallationMedia: Ubuntu-Budgie 19.10 "Eoan Ermine" - Alpha amd64 (20190801)
  SourcePackage: man-db
  UpgradeStatus: No upgrade log present (probably fresh install)

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