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libreport version: 2.0.8 executable: /usr/bin/python hashmarkername: setroubleshoot kernel: 3.2.2-1.fc16.x86_64 reason: SELinux is preventing /usr/bin/skype from 'mmap_zero' accesses on the None . time: Sun 29 Jan 2012 08:10:14 PM WET description: :SELinux is preventing /usr/bin/skype from 'mmap_zero' accesses on the None . : :***** Plugin mmap_zero (91.4 confidence) suggests ************************** : :If you do not think /usr/bin/skype should need to mmap low memory in the kernel. :Then you may be under attack by a hacker, this is a very dangerous access. :Do :contact your security administrator and report this issue. : :***** Plugin catchall (9.59 confidence) suggests *************************** : :If you believe that skype should be allowed mmap_zero access on the <Unknown> by default. :Then you should report this as a bug. :You can generate a local policy module to allow this access. :Do :allow this access for now by executing: :# grep threaded-ml /var/log/audit/audit.log | audit2allow -M mypol :# semodule -i mypol.pp : :Additional Information: :Source Context unconfined_u:unconfined_r:unconfined_execmem_t:s0- : s0:c0.c1023 :Target Context unconfined_u:unconfined_r:unconfined_execmem_t:s0- : s0:c0.c1023 :Target Objects [ None ] :Source threaded-ml :Source Path /usr/bin/skype :Port <Unknown> :Host (removed) :Source RPM Packages :Target RPM Packages :Policy RPM <Unknown> :Selinux Enabled True :Policy Type targeted :Enforcing Mode Enforcing :Host Name (removed) :Platform Linux (removed) 3.2.2-1.fc16.x86_64 #1 SMP Thu : Jan 26 03:21:58 UTC 2012 x86_64 x86_64 :Alert Count 6 :First Seen Sun 29 Jan 2012 08:09:18 PM WET :Last Seen Sun 29 Jan 2012 08:09:18 PM WET :Local ID 7e00dfcc-c1c9-4af2-883e-63af13f06c4b : :Raw Audit Messages :type=AVC msg=audit(1327867758.800:169): avc: denied { mmap_zero } for pid=9882 comm="threaded-ml" scontext=unconfined_u:unconfined_r:unconfined_execmem_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_execmem_t:s0-s0:c0.c1023 tclass=memprotectnode=(removed) type=SYSCALL msg=audit(1327867758.800:169): arch=40000003 syscall=192 per=400000 success=no exit=4294967283 a0=0 a1=1000 a2=3 a3=22 items=0 ppid=9845 pid=9882 auid=1000 uid=1000 gid=1000 euid=1000 suid=1000 fsuid=1000 egid=1000 sgid=1000 fsgid=1000 tty=(none) ses=2 comm="threaded-ml" exe="/usr/bin/skype" subj=unconfined_u:unconfined_r:unconfined_execmem_t:s0-s0:c0.c1023 key=(null) : : :Hash: threaded-ml,unconfined_execmem_t,unconfined_execmem_t,None,mmap_zero : :audit2allow : : :audit2allow -R : :
As the alert tells you, this is not something we want to allow. You should report it as a bug to skype. I would suggest you add a dontaudit rule and you would be abel to continue to use the product.