Not surprising, but FWIW this is happening
on RHEL 7.9 as well.
Heads up that for us at least, on CentOS 7.9.2009 (Core) with the latest available RPMs (0.103.0), clamonacc is repeatedly terminating -bash-4.2$ sudo grep clam /var/log/yum.log Dec 12 06:03:47 Updated: clamav-filesystem-0.103.0-1.el7.noarch Dec 12 06:03:48 Updated: clamav-lib-0.103.0-1.el7.x86_64 Dec 12 06:03:48 Updated: clamav-update-0.103.0-1.el7.x86_64 Dec 12 06:03:48 Updated: clamav-0.103.0-1.el7.x86_64 Dec 12 06:03:48 Updated: clamd-0.103.0-1.el7.x86_64 Dec 12 06:03:55 Updated: clamav-data-0.103.0-1.el7.noarch -bash-4.2$ -bash-4.2$ sudo grep smash /var/log/messages Dec 12 06:29:41 host.our.com clamonacc: *** stack smashing detected ***: /usr/sbin/clamonacc terminated Dec 12 11:28:33 host.our.com clamonacc: *** stack smashing detected ***: /usr/sbin/clamonacc terminated Dec 12 13:22:30 host.our.com clamonacc: *** stack smashing detected ***: /usr/sbin/clamonacc terminated Dec 12 13:34:35 host.our.com clamonacc: *** stack smashing detected ***: /usr/sbin/clamonacc terminated Dec 13 06:34:41 host.our.com clamonacc: *** stack smashing detected ***: /usr/sbin/clamonacc terminated Dec 13 07:28:20 host.our.com clamonacc: *** stack smashing detected ***: /usr/sbin/clamonacc terminated Dec 13 07:33:07 host.our.com clamonacc: *** stack smashing detected ***: /usr/sbin/clamonacc terminated Dec 13 08:33:31 host.our.com clamonacc: *** stack smashing detected ***: /usr/sbin/clamonacc terminated Dec 14 06:33:31 host.our.com clamonacc: *** stack smashing detected ***: /usr/sbin/clamonacc terminated Dec 14 07:32:26 host.our.com clamonacc: *** stack smashing detected ***: /usr/sbin/clamonacc terminated Dec 15 06:33:31 host.our.com clamonacc: *** stack smashing detected ***: /usr/sbin/clamonacc terminated Dec 15 07:32:26 host.our.com clamonacc: *** stack smashing detected ***: /usr/sbin/clamonacc terminated Dec 16 06:33:31 host.our.com clamonacc: *** stack smashing detected ***: /usr/sbin/clamonacc terminated Dec 16 07:32:26 host.our.com clamonacc: *** stack smashing detected ***: /usr/sbin/clamonacc terminated Dec 17 06:33:31 host.our.com clamonacc: *** stack smashing detected ***: /usr/sbin/clamonacc terminated Dec 17 07:32:26 host.our.com clamonacc: *** stack smashing detected ***: /usr/sbin/clamonacc terminated
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