Caught in enforcing mode:
----
type=PROCTITLE msg=audit(08/31/2023 13:55:14.473:488) : proctitle=gutenprint53+usb 
type=SYSCALL msg=audit(08/31/2023 13:55:14.473:488) : arch=x86_64 syscall=setsockopt success=yes exit=0 a0=0x6 a1=SOL_SOCKET a2=SO_ATTACH_FILTER a3=0x7ffd60639b50 items=0 ppid=8140 pid=8148 auid=unset uid=root gid=lp euid=root suid=root fsuid=root egid=lp sgid=lp fsgid=lp tty=(none) ses=unset comm=gutenprint53+us exe=/usr/lib/cups/backend/gutenprint53+usb subj=system_u:system_r:cupsd_t:s0-s0:c0.c1023 key=(null) 
type=AVC msg=audit(08/31/2023 13:55:14.473:488) : avc:  denied  { bpf } for  pid=8148 comm=gutenprint53+us capability=bpf  scontext=system_u:system_r:cupsd_t:s0-s0:c0.c1023 tcontext=system_u:system_r:cupsd_t:s0-s0:c0.c1023 tclass=capability2 permissive=0 
----

The problem is reproducible on RHEL-9.3:

# rpm -qa selinux\* cups\* | sort
cups-2.3.3op2-19.el9.x86_64
cups-client-2.3.3op2-19.el9.x86_64
cups-filesystem-2.3.3op2-19.el9.noarch
cups-filters-1.28.7-13.el9.x86_64
cups-filters-libs-1.28.7-13.el9.x86_64
cups-ipptool-2.3.3op2-19.el9.x86_64
cups-libs-2.3.3op2-19.el9.x86_64
cups-lpd-2.3.3op2-19.el9.x86_64
cups-pk-helper-0.2.6-14.el9.x86_64
selinux-policy-38.1.22-1.el9.noarch
selinux-policy-devel-38.1.22-1.el9.noarch
selinux-policy-doc-38.1.22-1.el9.noarch
selinux-policy-mls-38.1.22-1.el9.noarch
selinux-policy-targeted-38.1.22-1.el9.noarch
#

The SELinux denial appears immediately after step 1 (before entering anything into the search field).

Caught in permissive mode:
----
type=PROCTITLE msg=audit(08/31/2023 14:00:23.587:569) : proctitle=gutenprint53+usb 
type=SYSCALL msg=audit(08/31/2023 14:00:23.587:569) : arch=x86_64 syscall=setsockopt success=yes exit=0 a0=0x6 a1=SOL_SOCKET a2=SO_ATTACH_FILTER a3=0x7ffd9a624c90 items=0 ppid=11251 pid=11259 auid=unset uid=root gid=lp euid=root suid=root fsuid=root egid=lp sgid=lp fsgid=lp tty=(none) ses=unset comm=gutenprint53+us exe=/usr/lib/cups/backend/gutenprint53+usb subj=system_u:system_r:cupsd_t:s0-s0:c0.c1023 key=(null) 
type=AVC msg=audit(08/31/2023 14:00:23.587:569) : avc:  denied  { bpf } for  pid=11259 comm=gutenprint53+us capability=bpf  scontext=system_u:system_r:cupsd_t:s0-s0:c0.c1023 tcontext=system_u:system_r:cupsd_t:s0-s0:c0.c1023 tclass=capability2 permissive=1 
----

# rpm -qa | grep gutenprint
gutenprint-libs-5.3.4-4.el9.x86_64
gutenprint-5.3.4-4.el9.x86_64
gutenprint-cups-5.3.4-4.el9.x86_64
gutenprint-doc-5.3.4-4.el9.x86_64
# rpm -qla gutenprint\* | grep usb
/usr/lib/cups/backend/gutenprint53+usb
/usr/share/cups/usb/net.sf.gimp-print.usb-quirks
#

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