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[Ondra Medek <2046844@xxxxxxxxxxxxxxxxxx>]

I have 4.0.1really4.0.1-0ubuntu0.24.04.3 and still have the
"LaunchProcess: failed to execvp" problem. We a custom Electron app
packaged into a *.deb file. The problem occurs, when the installation
dir has a space in the path, e.g. "/opt/Custom App". When we make
installation into "/opt/CustomApp" then it starts fine.

Also in the error message, the path with space "/opt/Custom App" is
truncated to the first space only:

$ custom-app 
LaunchProcess: failed to execvp:
/opt/Custom

(Workaround "sysctl -w kernel.apparmor_restrict_unprivileged_userns=0"
works OK).

I think such mishandling spaces in path should be fixed ASAP. See also
Electron issue (and many apps it affects)
https://github.com/electron/electron/issues/41066

For the people struggling with Electron and SUID for chrome-sandbox see also the electron-builder issue https://github.com/electron-userland/electron-builder/issues/8440 (It may not affect all cases reported here.)
 

** Bug watch added: github.com/electron/electron/issues #41066
   https://github.com/electron/electron/issues/41066

** Bug watch added: github.com/electron-userland/electron-builder/issues #8440
   https://github.com/electron-userland/electron-builder/issues/8440

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https://bugs.launchpad.net/bugs/2046844

Title:
  AppArmor user namespace creation restrictions cause many applications
  to crash with SIGTRAP

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