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Red Hat Bugzilla – Attachment 590788 Details for
Bug 830588
SELinux is preventing wine-preloader from mmap_zero access on the memprotect
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log of abrt on selinuxtroubleshoot
abrt.log (text/x-log), 6.31 KB, created by
morgan read
on 2012-06-10 19:41:53 UTC
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Description:
log of abrt on selinuxtroubleshoot
Filename:
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Creator:
morgan read
Created:
2012-06-10 19:41:53 UTC
Size:
6.31 KB
patch
obsolete
>abrt.log: >executable: /usr/bin/python2.7 >hashmarkername: setroubleshoot >kernel: 3.3.7-1.fc16.x86_64 >reason: SELinux is preventing wine-preloader from 'mmap_zero' accesses on the memprotect . >time: Sun 10 Jun 2012 20:18:20 BST > >description: >:SELinux is preventing wine-preloader from 'mmap_zero' accesses on the memprotect . >: >:***** Plugin mmap_zero (53.1 confidence) suggests ************************** >: >:If you do not think wine-preloader 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.You can read 'mmap_selinux' man page for more details. >:Do >:setsebool -P mmap_low_allowed 1 >: >:***** Plugin catchall (5.76 confidence) suggests *************************** >: >:If you believe that wine-preloader should be allowed mmap_zero access on the 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 wine-preloader /var/log/audit/audit.log | audit2allow -M mypol >:# semodule -i mypol.pp >: >:Additional Information: >:Source Context unconfined_u:unconfined_r:wine_t:s0-s0:c0.c1023 >:Target Context unconfined_u:unconfined_r:wine_t:s0-s0:c0.c1023 >:Target Objects [ memprotect ] >:Source wine-preloader >:Source Path wine-preloader >:Port <Unknown> >:Host (removed) >:Source RPM Packages >:Target RPM Packages >:Policy RPM selinux-policy-3.10.0-86.fc16.noarch >:Selinux Enabled True >:Policy Type targeted >:Enforcing Mode Permissive >:Host Name (removed) >:Platform Linux (removed) 3.3.7-1.fc16.x86_64 #1 >: SMP Tue May 22 13:59:39 UTC 2012 x86_64 x86_64 >:Alert Count 36 >:First Seen Sun 13 May 2012 18:54:53 BST >:Last Seen Sun 10 Jun 2012 15:44:55 BST >:Local ID 73e7a9d6-b40b-42f6-86db-0734f33ecaeb >: >:Raw Audit Messages >:type=AVC msg=audit(1339339495.412:138): avc: denied { mmap_zero } for pid=6204 comm="wine-preloader" scontext=unconfined_u:unconfined_r:wine_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:wine_t:s0-s0:c0.c1023 tclass=memprotect >: >: >:Hash: wine-preloader,wine_t,wine_t,memprotect,mmap_zero >: >:audit2allow >: >:#============= wine_t ============== >:#!!!! This avc can be allowed using the boolean 'mmap_low_allowed' >: >:allow wine_t self:memprotect mmap_zero; >: >:audit2allow -R >: >:#============= wine_t ============== >:#!!!! This avc can be allowed using the boolean 'mmap_low_allowed' >: >:allow wine_t self:memprotect mmap_zero; >: > >END: > >abrt.log: >executable: /usr/bin/python2.7 >hashmarkername: setroubleshoot >kernel: 3.3.7-1.fc16.x86_64 >reason: SELinux is preventing wine-preloader from 'mmap_zero' accesses on the memprotect . >reported_to: file: /home/readlegal/abrt.log >time: Sun 10 Jun 2012 20:18:20 BST > >description: >:SELinux is preventing wine-preloader from 'mmap_zero' accesses on the memprotect . >: >:***** Plugin mmap_zero (53.1 confidence) suggests ************************** >: >:If you do not think wine-preloader 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.You can read 'mmap_selinux' man page for more details. >:Do >:setsebool -P mmap_low_allowed 1 >: >:***** Plugin catchall (5.76 confidence) suggests *************************** >: >:If you believe that wine-preloader should be allowed mmap_zero access on the 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 wine-preloader /var/log/audit/audit.log | audit2allow -M mypol >:# semodule -i mypol.pp >: >:Additional Information: >:Source Context unconfined_u:unconfined_r:wine_t:s0-s0:c0.c1023 >:Target Context unconfined_u:unconfined_r:wine_t:s0-s0:c0.c1023 >:Target Objects [ memprotect ] >:Source wine-preloader >:Source Path wine-preloader >:Port <Unknown> >:Host (removed) >:Source RPM Packages >:Target RPM Packages >:Policy RPM selinux-policy-3.10.0-86.fc16.noarch >:Selinux Enabled True >:Policy Type targeted >:Enforcing Mode Permissive >:Host Name (removed) >:Platform Linux (removed) 3.3.7-1.fc16.x86_64 #1 >: SMP Tue May 22 13:59:39 UTC 2012 x86_64 x86_64 >:Alert Count 36 >:First Seen Sun 13 May 2012 18:54:53 BST >:Last Seen Sun 10 Jun 2012 15:44:55 BST >:Local ID 73e7a9d6-b40b-42f6-86db-0734f33ecaeb >: >:Raw Audit Messages >:type=AVC msg=audit(1339339495.412:138): avc: denied { mmap_zero } for pid=6204 comm="wine-preloader" scontext=unconfined_u:unconfined_r:wine_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:wine_t:s0-s0:c0.c1023 tclass=memprotect >: >: >:Hash: wine-preloader,wine_t,wine_t,memprotect,mmap_zero >: >:audit2allow >: >:#============= wine_t ============== >:#!!!! This avc can be allowed using the boolean 'mmap_low_allowed' >: >:allow wine_t self:memprotect mmap_zero; >: >:audit2allow -R >: >:#============= wine_t ============== >:#!!!! This avc can be allowed using the boolean 'mmap_low_allowed' >: >:allow wine_t self:memprotect mmap_zero; >: > >END: >
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bug 830588
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