Your system may be seriously compromised! SELinux has denied the named the ability to mmap low area of the kernel address space. The ability to mmap a low area of the address space, as configured by /proc/sys/kernel/mmap_min_addr. Preventing such mappings helps protect against exploiting null deref bugs in the kernel. All applications that need this access should have already had policy written for them. If a compromised application tries modify the kernel this AVC would be generated. This is a serious issue. Your system may very well be compromised. Contact your security administrator and report this issue. Contexte source: unconfined_u:system_r:named_t:s0 Contexte cible: unconfined_u:system_r:named_t:s0 Objets du contexte: None [ memprotect ]source: named Chemin de la source: /usr/sbin/namedPort: <Inconnu> Hôte: Paquetages RPM source: bind-9.6.1-6.P1.fc12 Paquetages RPM cible: Politique RPM: selinux-policy-3.6.26-2.fc12 Selinux activé: True Type de politique: targeted MLS activé: True Mode strict: Enforcing Nom du plugin: mmap_zero Nom de l'hôte: Plateforme: Linux 2.6.31-0.112.rc4.git3.fc12.x86_64 #1 SMP Thu Jul 30 15:29:28 EDT 2009 x86_64 x86_64 Compteur d'alertes: 12 Première alerte: ven. 31 juil. 2009 20:19:00 CEST Dernière alerte: ven. 31 juil. 2009 20:19:00 CEST ID local: f0c205ff-5c07-40c7-b0c0-bb040db09024 Numéros des lignes: Messages d'audit bruts : node= type=AVC msg=audit(1249064340.25:68): avc: denied { mmap_zero } for pid=2844 comm="named" scontext=unconfined_u:system_r:named_t:s0 tcontext=unconfined_u:system_r:named_t:s0 tclass=memprotect node= type=AVC msg=audit(1249064340.25:68): avc: denied { mmap_zero } for pid=2844 comm="named" scontext=unconfined_u:system_r:named_t:s0 tcontext=unconfined_u:system_r:named_t:s0 tclass=memprotect node= type=AVC msg=audit(1249064340.25:68): avc: denied { mmap_zero } for pid=2844 comm="named" scontext=unconfined_u:system_r:named_t:s0 tcontext=unconfined_u:system_r:named_t:s0 tclass=memprotect node= type=SYSCALL msg=audit(1249064340.25:68): arch=c000003e syscall=125 success=yes exit=0 a0=7fffdf697374 a1=0 a2=7fffdbf1fe80 a3=24 items=0 ppid=2843 pid=2844 auid=500 uid=25 gid=25 euid=25 suid=25 fsuid=25 egid=25 sgid=25 fsgid=25 tty=(none) ses=1 comm="named" exe="/usr/sbin/named" subj=unconfined_u:system_r:named_t:s0 key=(null)
Would it be possible to tell me how did you reproduced this issue, please? I have installed: bind-9.6.1-6.P1.fc12.x86_64 selinux-policy-targeted-3.6.26-2.fc12.noarch and I'm running on 2.6.31-0.118.rc5.fc12.x86_64 kernel with no SELinux denial.
If I can reproduce it I'll post the info. There have been several selinux, bind and glibc updates in rawhide since
(In reply to comment #2) > If I can reproduce it I'll post the info. There have been several selinux, bind > and glibc updates in rawhide since Ok, if it happens again please reopen this issue. For not I'm closing this ticket.