[ubuntu-mono] [Bug 1840874] [NEW] Mono Runtime error because of bug in LargeArrayBuilder in Mono 5.18

[Timotheus Pokorra]

Public bug reported:

This bug happens in Mono 5.18, in Ubuntu Disco (19.04).
I am using the package 5.18.0.240+dfsg-2ubuntu2.

You can reproduce the bug with the attached test program.
It has been fixed upstream in Mono 5.20, with quite a simple patch.

I got the patch merged into the Debian Mono package:
https://salsa.debian.org/dotnet-team/mono/merge_requests/3

Is there any chance, this patch could be applied to the next Ubuntu
release (19.10), or even Ubuntu Disco (19.04)?

See for more details:
https://bugzilla.redhat.com/show_bug.cgi?id=1704847
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=919194

** Affects: mono (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "reproduce the bug with this code"
   https://bugs.launchpad.net/bugs/1840874/+attachment/5283599/+files/file_1704847.txt

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https://bugs.launchpad.net/bugs/1840874

Title:
  Mono Runtime error because of bug in LargeArrayBuilder in Mono 5.18

Status in mono package in Ubuntu:
  New

Bug description:
  This bug happens in Mono 5.18, in Ubuntu Disco (19.04).
  I am using the package 5.18.0.240+dfsg-2ubuntu2.

  You can reproduce the bug with the attached test program.
  It has been fixed upstream in Mono 5.20, with quite a simple patch.

  I got the patch merged into the Debian Mono package:
  https://salsa.debian.org/dotnet-team/mono/merge_requests/3

  Is there any chance, this patch could be applied to the next Ubuntu
  release (19.10), or even Ubuntu Disco (19.04)?

  See for more details:
  https://bugzilla.redhat.com/show_bug.cgi?id=1704847
  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=919194

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