Summary: SELinux is preventing /usr/bin/nmap access to a leaked /dev/console file descriptor. Detailed Description: [nmap has a permissive type (traceroute_t). This access was not denied.] SELinux denied access requested by the nmap command. It looks like this is either a leaked descriptor or nmap output was redirected to a file it is not allowed to access. Leaks usually can be ignored since SELinux is just closing the leak and reporting the error. The application does not use the descriptor, so it will run properly. If this is a redirection, you will not get output in the /dev/console. You should generate a bugzilla on selinux-policy, and it will get routed to the appropriate package. You can safely ignore this avc. Allowing Access: You can generate a local policy module to allow this access - see FAQ (http://fedora.redhat.com/docs/selinux-faq-fc5/#id2961385) Additional Information: Source Context system_u:system_r:traceroute_t:s0 Target Context system_u:object_r:console_device_t:s0 Target Objects /dev/console [ chr_file ] Source nmap Source Path /usr/bin/nmap Port <Unknown> Host (removed) Source RPM Packages nmap-5.00-4.fc12 Target RPM Packages Policy RPM selinux-policy-3.6.32-59.fc12 Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Plugin Name leaks Host Name (removed) Platform Linux (removed) 2.6.31.9-1.2.82.xendom0.fc12.x86_64 #1 SMP Wed Dec 23 21:24:07 UTC 2009 x86_64 x86_64 Alert Count 8 First Seen Wed 23 Dec 2009 09:24:59 AM MSK Last Seen Fri 25 Dec 2009 03:25:45 PM MSK Local ID e1e2c86c-05db-4dfa-a8b5-289b05abe1f2 Line Numbers Raw Audit Messages node=(removed) type=AVC msg=audit(1261743945.73:6): avc: denied { read } for pid=1885 comm="nmap" path="/dev/console" dev=tmpfs ino=1024 scontext=system_u:system_r:traceroute_t:s0 tcontext=system_u:object_r:console_device_t:s0 tclass=chr_file node=(removed) type=AVC msg=audit(1261743945.73:6): avc: denied { read } for pid=1885 comm="nmap" path="/dev/console" dev=tmpfs ino=1024 scontext=system_u:system_r:traceroute_t:s0 tcontext=system_u:object_r:console_device_t:s0 tclass=chr_file node=(removed) type=AVC msg=audit(1261743945.73:6): avc: denied { read } for pid=1885 comm="nmap" path="/dev/console" dev=tmpfs ino=1024 scontext=system_u:system_r:traceroute_t:s0 tcontext=system_u:object_r:console_device_t:s0 tclass=chr_file node=(removed) type=SYSCALL msg=audit(1261743945.73:6): arch=c000003e syscall=59 success=yes exit=0 a0=2826230 a1=28261e0 a2=2825420 a3=20 items=0 ppid=1437 pid=1885 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="nmap" exe="/usr/bin/nmap" subj=system_u:system_r:traceroute_t:s0 key=(null) Hash String generated from selinux-policy-3.6.32-59.fc12,leaks,nmap,traceroute_t,console_device_t,chr_file,read audit2allow suggests: #============= traceroute_t ============== allow traceroute_t console_device_t:chr_file read;
You can add these rules for now using # grep avc /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp Fixed in selinux-policy-3.6.32-65.fc12.noarch
selinux-policy-3.6.32-66.fc12 has been submitted as an update for Fedora 12. http://admin.fedoraproject.org/updates/selinux-policy-3.6.32-66.fc12
selinux-policy-3.6.32-66.fc12 has been pushed to the Fedora 12 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with su -c 'yum --enablerepo=updates-testing update selinux-policy'. You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F12/FEDORA-2010-0184
selinux-policy-3.6.32-66.fc12 has been pushed to the Fedora 12 stable repository. If problems still persist, please make note of it in this bug report.