SELinux is preventing /usr/bin/skype from 'mmap_zero' accesses on the memprotect Unknown. ***** Plugin mmap_zero (53.1 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_boolean (42.6 confidence) suggests ******************* If you want to control the ability to mmap a low area of the address space, as configured by /proc/sys/kernel/mmap_min_addr. Then you must tell SELinux about this by enabling the 'mmap_low_allowed' boolean. Do setsebool -P mmap_low_allowed 1 ***** Plugin catchall (5.76 confidence) suggests *************************** If you believe that skype should be allowed mmap_zero access on the Unknown memprotect 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 skype /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp Additional Information: Source Context unconfined_u:unconfined_r:unconfined_mono_t:s0-s0: c0.c1023 Target Context unconfined_u:unconfined_r:unconfined_mono_t:s0-s0: c0.c1023 Target Objects Unknown [ memprotect ] Source skype Source Path /usr/bin/skype Port <Непознат> Host (removed) Source RPM Packages skype-2.2.0.25-fc10 Target RPM Packages Policy RPM selinux-policy-3.9.7-40.fc14 Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 2.6.35.12-90.fc14.i686 #1 SMP Fri Apr 22 16:14:44 UTC 2011 i686 i686 Alert Count 326 First Seen 6.05.2011 (пт) 12,11,23 EEST Last Seen 7.05.2011 (сб) 14,10,23 EEST Local ID 5afc53fb-7899-4a75-bc4a-c558091dfd58 Raw Audit Messages type=AVC msg=audit(1304766623.402:1409): avc: denied { mmap_zero } for pid=1964 comm="skype" scontext=unconfined_u:unconfined_r:unconfined_mono_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_mono_t:s0-s0:c0.c1023 tclass=memprotect type=SYSCALL msg=audit(1304766623.402:1409): arch=i386 syscall=mmap2 per=400000 success=no exit=EACCES a0=0 a1=100000 a2=0 a3=4022 items=0 ppid=1 pid=1964 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=1 comm=skype exe=/usr/bin/skype subj=unconfined_u:unconfined_r:unconfined_mono_t:s0-s0:c0.c1023 key=(null) Hash: skype,unconfined_mono_t,unconfined_mono_t,memprotect,mmap_zero audit2allow #============= unconfined_mono_t ============== #!!!! This avc can be allowed using the boolean 'mmap_low_allowed' allow unconfined_mono_t self:memprotect mmap_zero; audit2allow -R #============= unconfined_mono_t ============== #!!!! This avc can be allowed using the boolean 'mmap_low_allowed' allow unconfined_mono_t self:memprotect mmap_zero;
Technical note added. If any revisions are required, please edit the "Technical Notes" field accordingly. All revisions will be proofread by the Engineering Content Services team. New Contents: This erorr pop up wen starting up skype 2.2 beta.
*** Bug 702903 has been marked as a duplicate of this bug. ***
*** This bug has been marked as a duplicate of bug 697616 ***