Bug 1465333 - SELinux is preventing mprotheap from using the 'execheap' accesses on a process.
SELinux is preventing mprotheap from using the 'execheap' accesses on a process.
Status: NEW
Product: Fedora
Classification: Fedora
Component: selinux-policy (Show other bugs)
26
x86_64 Unspecified
unspecified Severity unspecified
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Assigned To: Lukas Vrabec
Fedora Extras Quality Assurance
abrt_hash:5d6d12117143709ed7fcaa7dfe8...
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Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2017-06-27 05:05 EDT by Mirek Svoboda
Modified: 2017-09-14 18:23 EDT (History)
8 users (show)

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Description Mirek Svoboda 2017-06-27 05:05:31 EDT
Description of problem:
SELinux is preventing mprotheap from using the 'execheap' accesses on a process.

*****  Plugin allow_execheap (53.1 confidence) suggests   ********************

If you do not think mprotheap should need to map heap memory that is both writable and executable.
Then you need to report a bug. This is a potentially dangerous access.
Do
contact your security administrator and report this issue.

*****  Plugin catchall_boolean (42.6 confidence) suggests   ******************

If you want to allow selinuxuser to execheap
Then you must tell SELinux about this by enabling the 'selinuxuser_execheap' boolean.

Do
setsebool -P selinuxuser_execheap 1

*****  Plugin catchall (5.76 confidence) suggests   **************************

If you believe that mprotheap should be allowed execheap access on processes labeled unconfined_t 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:
# ausearch -c 'mprotheap' --raw | audit2allow -M my-mprotheap
# semodule -X 300 -i my-mprotheap.pp

Additional Information:
Source Context                unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1
                              023
Target Context                unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1
                              023
Target Objects                Unknown [ process ]
Source                        mprotheap
Source Path                   mprotheap
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-259.fc26.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.11.7-300.fc26.x86_64 #1 SMP Mon
                              Jun 26 14:54:05 UTC 2017 x86_64 x86_64
Alert Count                   4
First Seen                    2017-06-09 11:41:11 CEST
Last Seen                     2017-06-27 11:02:37 CEST
Local ID                      e7cdc42d-d598-49d1-82e8-05e4d07a0488

Raw Audit Messages
type=AVC msg=audit(1498554157.825:289): avc:  denied  { execheap } for  pid=3038 comm="mprotheap" scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=process permissive=0


Hash: mprotheap,unconfined_t,unconfined_t,process,execheap

Version-Release number of selected component:
selinux-policy-3.13.1-259.fc26.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.9.1
hashmarkername: setroubleshoot
kernel:         4.11.7-300.fc26.x86_64
type:           libreport

Potential duplicate: bug 1367939
Comment 1 Mirek Svoboda 2017-06-27 05:10:00 EDT
Description of problem:
HAppened while running kernel-tests on FC26 kernel 4.11.7-300
command: ./runtests.sh
repo: https://pagure.io/kernel-tests.git

Version-Release number of selected component:
selinux-policy-3.13.1-259.fc26.noarch

Additional info:
reporter:       libreport-2.9.1
hashmarkername: setroubleshoot
kernel:         4.11.7-300.fc26.x86_64
type:           libreport
Comment 2 Mirek Svoboda 2017-06-30 04:04:37 EDT
Description of problem:
running runtests.sh from kernel-tests repo as root on kernel 4.11.8-300.fc26.x86_64

Version-Release number of selected component:
selinux-policy-3.13.1-259.fc26.noarch

Additional info:
reporter:       libreport-2.9.1
hashmarkername: setroubleshoot
kernel:         4.11.8-300.fc26.x86_64
type:           libreport
Comment 3 Mirek Svoboda 2017-07-29 06:43:57 EDT
Description of problem:
boot up 4.12.4-300 on x86_64, login to Gnome Xorg and run kernel-tests

Version-Release number of selected component:
selinux-policy-3.13.1-260.3.fc26.noarch

Additional info:
reporter:       libreport-2.9.1
hashmarkername: setroubleshoot
kernel:         4.12.4-300.fc26.x86_64
type:           libreport
Comment 4 Mirek Svoboda 2017-08-07 18:51:19 EDT
Description of problem:
run kernel-tests suite on new kernel

Version-Release number of selected component:
selinux-policy-3.13.1-260.3.fc26.noarch

Additional info:
reporter:       libreport-2.9.1
hashmarkername: setroubleshoot
kernel:         4.12.5-300.fc26.x86_64
type:           libreport
Comment 5 Mirek Svoboda 2017-08-16 07:56:04 EDT
Description of problem:
running kernel-tests on 4.12.7

Version-Release number of selected component:
selinux-policy-3.13.1-260.3.fc26.noarch

Additional info:
reporter:       libreport-2.9.1
hashmarkername: setroubleshoot
kernel:         4.12.7-300.fc26.x86_64
type:           libreport
Comment 6 Mirek Svoboda 2017-08-18 12:33:12 EDT
Description of problem:
run kernel-tests on 4.12.8

Version-Release number of selected component:
selinux-policy-3.13.1-260.4.fc26.noarch

Additional info:
reporter:       libreport-2.9.1
hashmarkername: setroubleshoot
kernel:         4.12.8-300.fc26.x86_64
type:           libreport
Comment 7 Mirek Svoboda 2017-08-25 21:02:51 EDT
Description of problem:
running kernel-tests on 4.12.9

Version-Release number of selected component:
selinux-policy-3.13.1-260.6.fc26.noarch

Additional info:
reporter:       libreport-2.9.1
hashmarkername: setroubleshoot
kernel:         4.12.9-300.fc26.x86_64
type:           libreport
Comment 8 Mirek Svoboda 2017-09-13 08:16:16 EDT
Description of problem:
Run kernel regression test on kernel 4.12.12

Version-Release number of selected component:
selinux-policy-3.13.1-260.8.fc26.noarch

Additional info:
reporter:       libreport-2.9.1
hashmarkername: setroubleshoot
kernel:         4.12.12-300.fc26.x86_64
type:           libreport
Comment 9 Mirek Svoboda 2017-09-14 18:23:08 EDT
Description of problem:
run kernel regression tests

Version-Release number of selected component:
selinux-policy-3.13.1-260.8.fc26.noarch

Additional info:
reporter:       libreport-2.9.1
hashmarkername: setroubleshoot
kernel:         4.12.13-300.fc26.x86_64
type:           libreport

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