Bug 833550
| Summary: | SELinux is preventing /usr/bin/rekonq from 'mmap_zero' accesses on the memprotect . | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Brallan Jesús Aguilar Rivera <apcomptec> |
| Component: | rekonq | Assignee: | Rex Dieter <rdieter> |
| Status: | CLOSED DUPLICATE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 17 | CC: | dominick.grift, dwalsh, eparis, mgrepl, rdieter |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i686 | ||
| OS: | Unspecified | ||
| Whiteboard: | abrt_hash:0b7ae5f1abfaccb41ad6e0f4e754b2f51850a8d385e77373e02a843ca3c79acb | ||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-06-20 13:05:44 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
This is a dangerous access and not something we will allow on the system. rekonq should be fixed to not need this access. I don't think rekonq (or qtwebkit by extention) does require this by default, but I don't have any i686 box to test. Reporter, any hints on how to reproduce this? Just run rekonq or go to any particular websites? While we're at it, mind posting output of: ldd -r /usr/bin/reqkonq (I further wonder if it's any embedded media, gst plugin, or browser plugin at play here) When I type ldd -r /usr/bin/reqkonq:
linux-gate.so.1 => (0xb7776000)
libkdeinit4_rekonq.so => /lib/libkdeinit4_rekonq.so (0x42d27000)
libQtScript.so.4 => /lib/libQtScript.so.4 (0x43fd3000)
libkdewebkit.so.5 => /lib/libkdewebkit.so.5 (0x41786000)
libQtWebKit.so.4 => /lib/libQtWebKit.so.4 (0x47453000)
libkutils.so.4 => /lib/libkutils.so.4 (0x410e1000)
libkemoticons.so.4 => /lib/libkemoticons.so.4 (0x4106a000)
libkidletime.so.4 => /lib/libkidletime.so.4 (0x41084000)
libkcmutils.so.4 => /lib/libkcmutils.so.4 (0x415de000)
libkprintutils.so.4 => /lib/libkprintutils.so.4 (0x410d8000)
libkparts.so.4 => /lib/libkparts.so.4 (0x419d0000)
libkio.so.5 => /lib/libkio.so.5 (0x42a72000)
libQtNetwork.so.4 => /lib/libQtNetwork.so.4 (0x41a4f000)
libQtXml.so.4 => /lib/libQtXml.so.4 (0x410ec000)
libnepomukutils.so.4 => /lib/libnepomukutils.so.4 (0x416dd000)
libnepomuk.so.4 => /lib/libnepomuk.so.4 (0x427eb000)
libkdeui.so.5 => /lib/libkdeui.so.5 (0x4538a000)
libQtGui.so.4 => /lib/libQtGui.so.4 (0x44896000)
libQtSvg.so.4 => /lib/libQtSvg.so.4 (0x41013000)
libkdecore.so.5 => /lib/libkdecore.so.5 (0x41e58000)
libQtDBus.so.4 => /lib/libQtDBus.so.4 (0x4136e000)
libsoprano.so.4 => /lib/libsoprano.so.4 (0x42213000)
libthreadweaver.so.4 => /lib/libthreadweaver.so.4 (0x41531000)
libQtCore.so.4 => /lib/libQtCore.so.4 (0x4243c000)
libpthread.so.0 => /lib/libpthread.so.0 (0x4f96f000)
libstdc++.so.6 => /lib/libstdc++.so.6 (0x4fb88000)
libm.so.6 => /lib/libm.so.6 (0x4f99d000)
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x4fa1f000)
libc.so.6 => /lib/libc.so.6 (0x4f7bf000)
libsqlite3.so.0 => /lib/libsqlite3.so.0 (0x4437d000)
libXrender.so.1 => /lib/libXrender.so.1 (0x41324000)
libgio-2.0.so.0 => /lib/libgio-2.0.so.0 (0x4344b000)
libgstapp-0.10.so.0 => /lib/libgstapp-0.10.so.0 (0x417a9000)
libgstinterfaces-0.10.so.0 => /lib/libgstinterfaces-0.10.so.0 (0x43428000)
libgstpbutils-0.10.so.0 => /lib/libgstpbutils-0.10.so.0 (0x43607000)
libgstvideo-0.10.so.0 => /lib/libgstvideo-0.10.so.0 (0x43408000)
libgstbase-0.10.so.0 => /lib/libgstbase-0.10.so.0 (0x435a4000)
libgstreamer-0.10.so.0 => /lib/libgstreamer-0.10.so.0 (0x4331e000)
libgobject-2.0.so.0 => /lib/libgobject-2.0.so.0 (0x41735000)
libgmodule-2.0.so.0 => /lib/libgmodule-2.0.so.0 (0x413f3000)
libgthread-2.0.so.0 => /lib/libgthread-2.0.so.0 (0x41553000)
librt.so.1 => /lib/librt.so.1 (0x4f992000)
libxml2.so.2 => /lib/libxml2.so.2 (0x41ba4000)
libglib-2.0.so.0 => /lib/libglib-2.0.so.0 (0x41d2e000)
libQtLocation.so.1 => /lib/libQtLocation.so.1 (0x4318b000)
libQtSensors.so.1 => /lib/libQtSensors.so.1 (0x42416000)
libXext.so.6 => /lib/libXext.so.6 (0x411dd000)
libX11.so.6 => /lib/libX11.so.6 (0x4fd23000)
libXss.so.1 => /lib/libXss.so.1 (0x445b1000)
libSM.so.6 => /lib/libSM.so.6 (0x41b99000)
libICE.so.6 => /lib/libICE.so.6 (0x41663000)
libXft.so.2 => /lib/libXft.so.2 (0x4112f000)
libXau.so.6 => /lib/libXau.so.6 (0x4fd1d000)
libXpm.so.4 => /lib/libXpm.so.4 (0x41d1a000)
libnepomukquery.so.4 => /lib/libnepomukquery.so.4 (0x41691000)
libz.so.1 => /lib/libz.so.1 (0x4f9ca000)
libstreamanalyzer.so.0 => /lib/libstreamanalyzer.so.0 (0x418e7000)
libstreams.so.0 => /lib/libstreams.so.0 (0x417c5000)
libsolid.so.4 => /lib/libsolid.so.4 (0x42724000)
libacl.so.1 => /lib/libacl.so.1 (0x42f07000)
libattr.so.1 => /lib/libattr.so.1 (0x4292e000)
libssl.so.10 => /lib/libssl.so.10 (0x43833000)
libcrypto.so.10 => /lib/libcrypto.so.10 (0x4fff8000)
libsopranoclient.so.1 => /lib/libsopranoclient.so.1 (0x4158d000)
libqca.so.2 => /lib/libqca.so.2 (0x41425000)
libattica.so.0.3 => /lib/libattica.so.0.3 (0x42137000)
libdbusmenu-qt.so.2 => /lib/libdbusmenu-qt.so.2 (0x41558000)
libXtst.so.6 => /lib/libXtst.so.6 (0x42a69000)
libXcursor.so.1 => /lib/libXcursor.so.1 (0x41cf5000)
libXfixes.so.3 => /lib/libXfixes.so.3 (0x41655000)
libpng15.so.15 => /lib/libpng15.so.15 (0x4121c000)
libfreetype.so.6 => /lib/libfreetype.so.6 (0x41282000)
libXi.so.6 => /lib/libXi.so.6 (0x4167f000)
libXrandr.so.2 => /lib/libXrandr.so.2 (0x419b3000)
libXinerama.so.1 => /lib/libXinerama.so.1 (0x4165d000)
libfontconfig.so.1 => /lib/libfontconfig.so.1 (0x4124b000)
libbz2.so.1 => /lib/libbz2.so.1 (0x41000000)
liblzma.so.5 => /lib/liblzma.so.5 (0x41343000)
libresolv.so.2 => /lib/libresolv.so.2 (0x4fb68000)
libfam.so.0 => /lib/libfam.so.0 (0x41a3e000)
libdbus-1.so.3 => /lib/libdbus-1.so.3 (0x4fc76000)
libdl.so.2 => /lib/libdl.so.2 (0x4f98b000)
/lib/ld-linux.so.2 (0x4f798000)
libffi.so.5 => /lib/libffi.so.5 (0x4fcc2000)
libselinux.so.1 => /lib/libselinux.so.1 (0x4f9e2000)
liborc-0.4.so.0 => /lib/liborc-0.4.so.0 (0x44714000)
libQtSql.so.4 => /lib/libQtSql.so.4 (0x41097000)
libxcb.so.1 => /lib/libxcb.so.1 (0x4fe5d000)
libuuid.so.1 => /lib/libuuid.so.1 (0x4fe81000)
libHUpnp.so.1 => /lib/libHUpnp.so.1 (0x422fd000)
libudev.so.0 => /lib/libudev.so.0 (0x419be000)
libgssapi_krb5.so.2 => /lib/libgssapi_krb5.so.2 (0x43147000)
libkrb5.so.3 => /lib/libkrb5.so.3 (0x43037000)
libcom_err.so.2 => /lib/libcom_err.so.2 (0x4fe89000)
libk5crypto.so.3 => /lib/libk5crypto.so.3 (0x43119000)
libexpat.so.1 => /lib/libexpat.so.1 (0x411f1000)
libqtsoap.so.2 => /lib/libqtsoap.so.2 (0x4117f000)
libkrb5support.so.0 => /lib/libkrb5support.so.0 (0x411b5000)
libkeyutils.so.1 => /lib/libkeyutils.so.1 (0x4ff80000)
I get this error frequently. For example, some times when I log in, specially after suspend my session. kernel bug. sorry to distract you. *** This bug has been marked as a duplicate of bug 746171 *** |
libreport version: 2.0.10 executable: /usr/bin/python2.7 hashmarkername: setroubleshoot kernel: 3.4.2-4.fc17.i686 time: Tue 19 Jun 2012 12:30:45 PM CST description: :SELinux is preventing /usr/bin/rekonq from 'mmap_zero' accesses on the memprotect . : :***** Plugin mmap_zero (53.1 confidence) suggests ************************** : :If you do not think /usr/bin/rekonq 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 mmap_low_allowed :Then you must tell SELinux about this by enabling the 'mmap_low_allowed' boolean.You can read 'unconfined_selinux' man page for more details. :Do :setsebool -P mmap_low_allowed 1 : :***** Plugin catchall (5.76 confidence) suggests *************************** : :If you believe that rekonq 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 rekonq /var/log/audit/audit.log | audit2allow -M mypol :# semodule -i mypol.pp : :Additional Information: :Source Context unconfined_u:unconfined_r:unconfined_t:s0 :Target Context unconfined_u:unconfined_r:unconfined_t:s0 :Target Objects [ memprotect ] :Source rekonq :Source Path /usr/bin/rekonq :Port <Unknown> :Host (removed) :Source RPM Packages rekonq-0.9.2-1.fc17.i686 :Target RPM Packages :Policy RPM selinux-policy-3.10.0-130.fc17.noarch :Selinux Enabled True :Policy Type targeted :Enforcing Mode Enforcing :Host Name (removed) :Platform Linux (removed) 3.4.2-4.fc17.i686 #1 SMP : Thu Jun 14 22:19:00 UTC 2012 i686 i686 :Alert Count 1 :First Seen Tue 19 Jun 2012 12:27:21 PM CST :Last Seen Tue 19 Jun 2012 12:27:21 PM CST :Local ID 054de449-3ecc-4622-9fca-18a6a2bd31b9 : :Raw Audit Messages :type=AVC msg=audit(1340130441.49:52): avc: denied { mmap_zero } for pid=1385 comm="rekonq" scontext=unconfined_u:unconfined_r:unconfined_t:s0 tcontext=unconfined_u:unconfined_r:unconfined_t:s0 tclass=memprotect : : :type=SYSCALL msg=audit(1340130441.49:52): arch=i386 syscall=mmap2 success=no exit=EACCES a0=0 a1=db000 a2=3 a3=22 items=0 ppid=1384 pid=1385 auid=1000 uid=1000 gid=1000 euid=1000 suid=1000 fsuid=1000 egid=1000 sgid=1000 fsgid=1000 tty=(none) ses=1 comm=rekonq exe=/usr/bin/rekonq subj=unconfined_u:unconfined_r:unconfined_t:s0 key=(null) : :Hash: rekonq,unconfined_t,unconfined_t,memprotect,mmap_zero : :audit2allowunable to open /sys/fs/selinux/policy: Permission denied : : :audit2allow -Runable to open /sys/fs/selinux/policy: Permission denied : :