On 04/08/10 10:33, Laurent Rineau wrote: > For a few days (maybe two weeks), my cron deamon keeps sending me error emails, once a day: >> /etc/cron.daily/0logwatch: >> >> Can't exec "/usr/sbin/sendmail": Permission denied at /usr/sbin/logwatch line 1032,<TESTFILE> line 2. >> Can't execute /usr/sbin/sendmail -t: Permission denied > > I have suspected SELinux, but the setroubleshot stuff did not say anything. And I eventually found that: > > lrineau@matisse ~ $ sudo ausearch -ts yesterday -m SELINUX_ERR > ---- > time->Tue Aug 3 03:16:04 2010 > type=SYSCALL msg=audit(1280798164.966:454): arch=c000003e syscall=59 success=no exit=-13 a0=1dfe430 a1=1dfe3c0 a2=1e01240 a3=8 items=0 ppid=17968 pid=18278 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 > fsgid=0 tty=(none) ses=31 comm="logwatch" exe="/usr/bin/perl" subj=system_u:system_r:logwatch_t:s0-s0:c0.c1023 key=(null) > type=SELINUX_ERR msg=audit(1280798164.966:454): security_compute_sid: invalid context system_u:system_r:logwatch_mail_t:s0-s0:c0.c1023 for scontext=system_u:system_r:logwatch_t:s0-s0:c0.c1023 > tcontext=system_u:object_r:sendmail_exec_t:s0 tclass=process > ---- > time->Wed Aug 4 03:19:04 2010 > type=SYSCALL msg=audit(1280884744.246:135): arch=c000003e syscall=59 success=no exit=-13 a0=187b190 a1=187b120 a2=187ac30 a3=7ffff2dc3ec0 items=0 ppid=14696 pid=15085 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 > egid=0 sgid=0 fsgid=0 tty=(none) ses=21 comm="logwatch" exe="/usr/bin/perl" subj=system_u:system_r:logwatch_t:s0-s0:c0.c1023 key=(null) > type=SELINUX_ERR msg=audit(1280884744.246:135): security_compute_sid: invalid context system_u:system_r:logwatch_mail_t:s0-s0:c0.c1023 for scontext=system_u:system_r:logwatch_t:s0-s0:c0.c1023 > tcontext=system_u:object_r:sendmail_exec_t:s0 tclass=process > > I did not know about SELINUX_ERR before that error. Maybe setroubleshotd should be aware of it, so that one can report bugs about SELINUX_ERR easily with the applet. > > My configuration is this one: > > lrineau@matisse ~ $ rpm -qa postfix selinux\* > selinux-policy-3.7.19-39.fc13.noarch > selinux-policy-targeted-3.7.19-39.fc13.noarch > postfix-2.7.0-1.fc13.x86_64 > > logwatch and postfix are configured with the default configurations, tweak only the simpliest way. https://bugzilla.redhat.com/show_bug.cgi?id=617790 Paul. -- selinux mailing list selinux@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/selinux
