Erroneous / extra input generated in requesting application when prompting to unlock keys

[Alex Murray]

Recently I have noticed that when I am being prompted for the passphrase for to unlock a GPG/SSH key via the gnome-shell prompter, whilst the prompt is visible the requesting window seems to get spammed by input - this can be reproduced via running the following (but replace the gpg recipient with the one of your own user's private key):

$ echo RELOADAGENT | gpg-connect-agent; echo foo | gpg --encrypt --recipient <email address hidden> | gpg --decrypt

See attached for a short video demonstrating the issue.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: gnome-shell 42~beta-1ubuntu3
ProcVersionSignature: Ubuntu 5.15.0-23.23-generic 5.15.27
Uname: Linux 5.15.0-23-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu79
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue Mar 22 11:43:36 2022
DisplayManager: gdm3
InstallationDate: Installed on 2021-08-03 (230 days ago)
InstallationMedia: Ubuntu 21.10 "Impish Indri" - Alpha amd64 (20210802)
RelatedPackageVersions: mutter-common 42~beta-1ubuntu2
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to jammy on 2022-01-14 (66 days ago)

[Alex Murray (alexmurray)]

If it is not clear from the video - watch the terminal window in the background when the prompt for the passphrase appears - it keeps scrolling as though getting input by newlines all the time - and this then persists even after the prompt is dismissed until I manually provide some input myself.

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1964442, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.