[Bug 251802] security/clamav: unstoppable, unkillable clamscan process blocking system in state "ufs"

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251802

O. Hartmann <ohartmann at walstatt.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|clamav                      |security/clamav:
                   |                            |unstoppable, unkillable
                   |                            |clamscan process blocking
                   |                            |system in state "ufs"

--- Comment #1 from O. Hartmann <ohartmann at walstatt.org> ---
OS: FreeBSD CURRENT (FreeBSD 13.0-CURRENT #168 r368515: Thu Dec 10 15:01:30 CET
2020 amd64), port clamav-0.103.0,1 and clamav-unofficial-sigs-7.0.1.

Roughly seven days ago the access to the hosts/netoworks providing clamav's
update files were blockes by our firewall. Since 12th of December, clamscan is
running with two instances for a user (myself) on the specified host and it is
unkillable. I tried almost every KILL signal to stop the process as root, as
the UID it runs as, with no success.

Opening files with vi doesn't work or starting a new screen with screen command
(sysutils/screen, screen-4.8.0) is stuck forever - the attached tty is
irresponsive, ssh sessions are stuck and stay in that state forever.

The problem looks like a full /tmp or /var/tmp filesystem, but there is plenty
of space left and I can't see anything wrong with out of space or out of
inodes.

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