From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.8.1.10) Gecko/20071128 Fedora/2.0.0.10-2.fc7 Firefox/2.0.0.10 Description of problem: Summary SELinux is preventing /usr/sbin/sendmail.postfix (system_mail_t) "read" to /usr/share/GeoIP/GeoIP.dat (usr_t). Detailed Description SELinux denied access requested by /usr/sbin/sendmail.postfix. It is not expected that this access is required by /usr/sbin/sendmail.postfix and this access may signal an intrusion attempt. It is also possible that the specific version or configuration of the application is causing it to require additional access. Allowing Access Sometimes labeling problems can cause SELinux denials. You could try to restore the default system file context for /usr/share/GeoIP/GeoIP.dat, restorecon -v /usr/share/GeoIP/GeoIP.dat If this does not work, there is currently no automatic way to allow this access. Instead, you can generate a local policy module to allow this access - see http://fedora.redhat.com/docs/selinux-faq-fc5/#id2961385 Or you can disable SELinux protection altogether. Disabling SELinux protection is not recommended. Please file a http://bugzilla.redhat.com/bugzilla/enter_bug.cgi against this package. Additional Information Source Context system_u:system_r:system_mail_t Target Context system_u:object_r:usr_t Target Objects /usr/share/GeoIP/GeoIP.dat [ file ] Affected RPM Packages postfix-2.4.5-2.fc7 [application]GeoIP-1.4.3-1.fc7 [target] Policy RPM selinux-policy-2.6.4-61.fc7 Selinux Enabled True Policy Type targeted MLS Enabled True Enforcing Mode Enforcing Plugin Name plugins.catchall_file Host Name newage.cosywallet.com Platform Linux newage.cosywallet.com 2.6.23.8-34.fc7 #1 SMP Thu Nov 22 20:39:56 EST 2007 x86_64 x86_64 Alert Count 196 First Seen Fri 23 Nov 2007 11:54:18 PM CET Last Seen Wed 12 Dec 2007 11:34:28 AM CET Local ID ae2dfe4b-7a17-4912-990a-55c189f0d266 Line Numbers Raw Audit Messages avc: denied { read } for comm="sendmail" dev=dm-0 egid=48 euid=48 exe="/usr/sbin/sendmail.postfix" exit=0 fsgid=48 fsuid=48 gid=48 items=0 path="/usr/share/GeoIP/GeoIP.dat" pid=3255 scontext=system_u:system_r:system_mail_t:s0 sgid=48 subj=system_u:system_r:system_mail_t:s0 suid=48 tclass=file tcontext=system_u:object_r:usr_t:s0 tty=(none) uid=48 Version-Release number of selected component (if applicable): postfix 2:2.4.5-2.fc7.x86_64 selinux-policy 2.6.4-61.fc7.noarch How reproducible: Always Steps to Reproduce: 1.Send mail from php 2. 3. Actual Results: Expected Results: Additional info:
Is this actually trying to mail this file? Or is this another leaked file descriptor?
This is connected to the geoip packages. I had GeoIP 1.4.3-1.fc7.x86_64 and mod_geoip 1.2.0-1.fc7.x86_64 I have uninstall those packages, so now it works. How those packages connects to postfix I do not really know or investigated but postfix seems to access /usr/share/GeoIP/GeoIP.dat every time you send a mail from php. However I do not use the GeoIP packages for now but I maybe will in the future, I built some hobby websites with GIS. www.geobait.com www.snowbull.com www.riderguru.com
Ok, this is probably a leaked file descriptor. Some where along the line you apache scripts were call ing mod_geoip, which opened /usr/share/GeoIP/GeoIP.dat but did not close it on exec. When apache starts postfix to send mail, the kernel looks at all open file descriptors from apache and checks the postfix access, If postfix is not allowed to use the file descriptor, it closes it and runs the app. So postfix would work correctly, but you get a nasty avc reported. So mod_geoip should close all file descriptors on exec fcntl(fd, F_SETFD, FD_CLOEXEC)
I'll add a METOO to this bug, although I'm not conversant enough in C to work out exactly what the fix is going to look like (I might kick it upstream anyway, even if I get a flash of enlightenment)
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