** Also affects: nautilus (Ubuntu Noble)
Importance: Undecided
Status: New
** Changed in: nautilus (Ubuntu Noble)
Status: New => In Progress
** Changed in: nautilus (Ubuntu Noble)
Importance: Undecided => Medium
** Changed in: nautilus (Ubuntu Noble)
Assignee: (unassigned) => Alessandro Astone (aleasto)
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https://bugs.launchpad.net/bugs/2095129
Title:
Nautilus crashes when update_file_info_full is running and the folder
is being left
Status in nautilus package in Ubuntu:
Fix Released
Status in nautilus source package in Noble:
In Progress
Bug description:
[ Impact ]
Nautilus crashes if nautilus-python is installed and
update_file_info_full is running and the folder is being left. This
happens because of a NULL deref.
My patch checks for NULL and returns to avoid the NULL deref.
[ Test Plan ]
1. Install python3-nautilus
2. Copy test.py to ~/.local/share/nautilus-python/extensions/
(https://gitlab.gnome.org/-/project/1/uploads/4becd588cc4db8294e9154813e814224/test.py)
3. create an empty folder and open a terminal and run mkdir test_{1..500} to
create a lot of empty folders in your new directory
4. kill nautilus with nautilus -q
5. restart nautilus with nautilus --no-desktop
6. navigate to your folder
7. immediately go back to the parent folder, i.e. press alt+arrow-key-up
8. repeat folder navigation multiple times
Nautilus should not crash.
[ Where problems could occur ]
Since the extension functions return now prematurely, some of the code
paths are no longer being executed, i.e. a g_object_unref or
finish_info_provider. This might lead to a memory leak or undefined
extension behavior.
Instead of crashing nautilus will output an error message.
[ Other Info ]
Upstream MR: https://gitlab.gnome.org/GNOME/nautilus/-/merge_requests/1662
Upstream issue: https://gitlab.gnome.org/GNOME/nautilus/-/issues/3505
Since nautilus-python is not preinstalled and an extension which calls
the async method is required, this crash and this patch does not
affect a Ubuntu standard installation and therefore most of the Ubuntu
users.
Nonetheless I think this crash especially affects developers who use
Ubuntu and a tool like turtle
(https://gitlab.gnome.org/philippun1/turtle), which uses the nautilus
python extension to calculate git status emblems.
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