I see a lot of /memfd: in lsof it appears to be anonymous files (ie
temp files). I am going to guess memfd is memory file descriptor, ie
a temp file created in memory.
Usually they are going to not actually exist anywhere in a fs. And
generally the app that opens/creates them is the app that is going to
immediately use it.
if selinux is blocking it I would think it should cause some sort of
issues with the owner/application using the file.
lsof | grep "/memfd:/.nvidia" will show you the owner of the
specific file. For the nvidia_drv one it looks like Xorg (on my
system, may Wayland if you are using that) opens it.
On mine in lsof I have hundreds using the .nvidia_drv.XXXXXX one and
all have the same node in lsof so all are the same object, probably
created by the display owner.
It may be that caja itself is not granted the proper selinux
permissions to use that resource and is hence getting the error. Ie
the error may not be that the file is missing options but that the
application is not allowed access to the file.
you might try the restorecon against the caja executable itself
On Tue, Apr 13, 2021 at 12:41 PM home user <mattisonw@xxxxxxxxxxx> wrote:
>
> At least 3 times in the past few days I've seen the same SELinux alert.
> I put the text of the details in the attached file "alerts.txt". All 3
> occurrences were while using caja to rename or delete a file, though it
> does not happen every time I rename or delete a file in caja. These
> alerts confuse me. There is no directory "/memdf:"...
>
> -bash.1[~]: cd /
> -bash.2[/]: ls -a
> . boot etc lib64 mnt root srv system-upgrade usr
> .. .cache home lost+found opt run sys system-upgrade-root var
> bin dev lib media proc sbin sysroot tmp
> -bash.3[/]: ls -a /memfd*
> ls: cannot access '/memfd*': No such file or directory
> -bash.4[/]:
>
> Also, the directory name (ending with a colon?) looks fishy. Further,
> the filename ".nvidia_drv.XXXXXX" looks fishy (but "legal").
>
> The instruction does not work:
>
> -bash.4[/]: /sbin/restorecon -v /memfd:/.nvidia_drv.XXXXXX (deleted)
> -bash: syntax error near unexpected token `('
> -bash.4[/]:
>
> -bash.5[/]: /sbin/restorecon -v /memfd:/.nvidia_drv.XXXXXX
> /sbin/restorecon: SELinux: Could not get canonical path for
> /memfd:/.nvidia_drv.XXXXXX restorecon: No such file or directory.
> -bash.6[/]:
>
> I gather that a directory and or file (whatever its name really is) are
> missing?
>
> How do I fix this?
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