Package: postfix Version: 3.9.1-10+b1 Severity: normal The method of updating files in /var/spool/postfix/etc has changed from version 3.9.1-4 to 3.9.1-5 and the result is that /var/spool/postfix/etc from previous versions has the type etc_t and the new code runs the cp command as postfix_master_t which doesn't have permission to write to etc_t.
The solution to this is "rm -rf /var/spool/postfix/etc" as part of the upgrade process, this means that the new /var/spool/postfix/etc dir will be created as type postfix_spool_t. This doesn't require any other SE Linux specific changes, just rm that dir and everything else works. -- System Information: Debian Release: trixie/sid Architecture: amd64 (x86_64) Kernel: Linux 6.12.9-amd64 (SMP w/4 CPU threads; PREEMPT) Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8), LANGUAGE=en_AU:en Shell: /bin/sh linked to /usr/bin/dash Init: unable to detect Versions of packages postfix depends on: ii adduser 3.137 ii debconf [debconf-2.0] 1.5.89 ii init-system-helpers 1.68 ii libc6 2.40-5 ii libdb5.3t64 5.3.28+dfsg2-9 ii libicu72 72.1-6 ii libnsl2 1.3.0-3+b3 ii libsasl2-2 2.1.28+dfsg1-8+b1 ii libssl3t64 3.4.0-2 ii netbase 6.4 Versions of packages postfix recommends: ii ca-certificates 20241223 ii python3 3.13.1-2 ii ssl-cert 1.1.3 Versions of packages postfix suggests: ii bsd-mailx [mail-reader] 8.1.2-0.20220412cvs-1 ii geary [mail-reader] 46.0-5 ii kmail [mail-reader] 4:24.12.0-2 ii libsasl2-modules 2.1.28+dfsg1-8+b1 ii mailutils [mail-reader] 1:3.17-2+b4 ii mutt [mail-reader] 2.2.13-1 pn postfix-cdb <none> pn postfix-doc <none> pn postfix-ldap <none> pn postfix-lmdb <none> pn postfix-mongodb <none> pn postfix-mta-sts-resolver <none> pn postfix-mysql <none> pn postfix-pcre <none> pn postfix-pgsql <none> pn postfix-sqlite <none> ii procmail 3.24+really3.22-4 ii systemd-resolved [resolvconf] 257.2-2 ii thunderbird [mail-reader] 1:128.6.0esr-1 pn ufw <none> -- Configuration Files: /etc/init.d/postfix [Errno 13] Permission denied: '/etc/init.d/postfix' /etc/network/if-down.d/postfix [Errno 13] Permission denied: '/etc/network/if-down.d/postfix' /etc/network/if-up.d/postfix [Errno 13] Permission denied: '/etc/network/if-up.d/postfix' /etc/postfix/main.cf.proto [Errno 13] Permission denied: '/etc/postfix/main.cf.proto' /etc/postfix/master.cf.proto [Errno 13] Permission denied: '/etc/postfix/master.cf.proto' /etc/postfix/postfix-files [Errno 13] Permission denied: '/etc/postfix/postfix-files' /etc/ppp/ip-down.d/postfix [Errno 13] Permission denied: '/etc/ppp/ip-down.d/postfix' /etc/ppp/ip-up.d/postfix [Errno 13] Permission denied: '/etc/ppp/ip-up.d/postfix' /etc/rsyslog.d/postfix.conf [Errno 13] Permission denied: '/etc/rsyslog.d/postfix.conf' -- debconf-show failed