The issue relates to using the mod_mono module (I think):
Jul 9 17:28:31 bronze kernel: mono[8896]: segfault at 0 ip 08069d02 sp bf8a6540 error 6 in mono[8047000+1f4000] Jul 9 17:28:32 bronze setroubleshoot: SELinux is preventing mono (httpd_t) "execmem" to <Unknown> (httpd_t). For complete SELinux messages. run sealert -l 2cb69eb1-baf7-4631-936c-9f6c80436e2e Jul 9 17:28:32 bronze setroubleshoot: SELinux is preventing mono (httpd_t) "execmem" to <Unknown> (httpd_t). For complete SELinux messages. run sealert -l 2cb69eb1-baf7-4631-936c-9f6c80436e2e
# sealert -l 2cb69eb1-baf7-4631-936c-9f6c80436e2e ========================================== Summary:
SELinux is preventing mono (httpd_t) "execmem" to <Unknown> (httpd_t).
Detailed Description:
SELinux denied access requested by mono. It is not expected that this access is required by mono and this access may signal an intrusion attempt. It is also possible that the specific version or configuration of the application is causing it to require additional access.
Allowing Access:
You can generate a local policy module to allow this access - see FAQ (http://fedora.redhat.com/docs/selinux-faq-fc5/#id2961385) Or you can disable SELinux protection altogether. Disabling SELinux protection is not recommended. Please file a bug report (http://bugzilla.redhat.com/bugzilla/enter_bug.cgi) against this package.
Additional Information:
Source Context system_u:system_r:httpd_t:s0 Target Context system_u:system_r:httpd_t:s0 Target Objects None [ process ] Source mono Source Path /usr/bin/mono Port <Unknown> Host bronze.cdkkt.com Source RPM Packages mono-core-1.9.1-2.fc9 Target RPM Packages Policy RPM selinux-policy-3.3.1-74.fc9 Selinux Enabled True Policy Type targeted MLS Enabled True Enforcing Mode Enforcing Plugin Name catchall Host Name bronze.cdkkt.com Platform Linux bronze.cdkkt.com 2.6.25.9-76.fc9.i686 #1 SMP Fri Jun 27 16:14:35 EDT 2008 i686 i686 Alert Count 26 First Seen Tue Jul 8 16:54:41 2008 Last Seen Wed Jul 9 17:28:31 2008 Local ID 2cb69eb1-baf7-4631-936c-9f6c80436e2e Line Numbers
Raw Audit Messages
host=bronze.cdkkt.com type=AVC msg=audit(1215649711.436:45): avc: denied { execmem } for pid=8896 comm="mono" scontext=system_u:system_r:httpd_t:s0 tcontext=system_u:system_r:httpd_t:s0 tclass=process
host=bronze.cdkkt.com type=SYSCALL msg=audit(1215649711.436:45): arch=40000003 syscall=192 per=400000 success=no exit=-13 a0=0 a1=10000 a2=7 a3=22 items=0 ppid=1 pid=8896 auid=4294967295 uid=48 gid=48 euid=48 suid=48 fsuid=48 egid=48 sgid=48 fsgid=48 tty=(none) ses=4294967295 comm="mono" exe="/usr/bin/mono" subj=system_u:system_r:httpd_t:s0 key=(null)
How can I fix this please? Dan
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
Dan Thurman wrote:
The issue relates to using the mod_mono module (I think):
Jul 9 17:28:31 bronze kernel: mono[8896]: segfault at 0 ip 08069d02 sp bf8a6540 error 6 in mono[8047000+1f4000] Jul 9 17:28:32 bronze setroubleshoot: SELinux is preventing mono (httpd_t) "execmem" to <Unknown> (httpd_t). For complete SELinux messages. run sealert -l 2cb69eb1-baf7-4631-936c-9f6c80436e2e Jul 9 17:28:32 bronze setroubleshoot: SELinux is preventing mono (httpd_t) "execmem" to <Unknown> (httpd_t). For complete SELinux messages. run sealert -l 2cb69eb1-baf7-4631-936c-9f6c80436e2e
# sealert -l 2cb69eb1-baf7-4631-936c-9f6c80436e2e
Summary:
SELinux is preventing mono (httpd_t) "execmem" to <Unknown> (httpd_t).
Detailed Description:
SELinux denied access requested by mono. It is not expected that this access is required by mono and this access may signal an intrusion attempt. It is also possible that the specific version or configuration of the application is causing it to require additional access.
Allowing Access:
You can generate a local policy module to allow this access - see FAQ (http://fedora.redhat.com/docs/selinux-faq-fc5/#id2961385) Or you can disable SELinux protection altogether. Disabling SELinux protection is not recommended. Please file a bug report (http://bugzilla.redhat.com/bugzilla/enter_bug.cgi) against this package.
Additional Information:
Source Context system_u:system_r:httpd_t:s0 Target Context system_u:system_r:httpd_t:s0 Target Objects None [ process ] Source mono Source Path /usr/bin/mono Port <Unknown> Host bronze.cdkkt.com Source RPM Packages mono-core-1.9.1-2.fc9 Target RPM Packages Policy RPM selinux-policy-3.3.1-74.fc9 Selinux Enabled True Policy Type targeted MLS Enabled True Enforcing Mode Enforcing Plugin Name catchall Host Name bronze.cdkkt.com Platform Linux bronze.cdkkt.com 2.6.25.9-76.fc9.i686 #1 SMP Fri Jun 27 16:14:35 EDT 2008 i686 i686 Alert Count 26 First Seen Tue Jul 8 16:54:41 2008 Last Seen Wed Jul 9 17:28:31 2008 Local ID 2cb69eb1-baf7-4631-936c-9f6c80436e2e Line Numbers Raw Audit Messages host=bronze.cdkkt.com type=AVC msg=audit(1215649711.436:45): avc: denied { execmem } for pid=8896 comm="mono" scontext=system_u:system_r:httpd_t:s0 tcontext=system_u:system_r:httpd_t:s0 tclass=process
host=bronze.cdkkt.com type=SYSCALL msg=audit(1215649711.436:45): arch=40000003 syscall=192 per=400000 success=no exit=-13 a0=0 a1=10000 a2=7 a3=22 items=0 ppid=1 pid=8896 auid=4294967295 uid=48 gid=48 euid=48 suid=48 fsuid=48 egid=48 sgid=48 fsgid=48 tty=(none) ses=4294967295 comm="mono" exe="/usr/bin/mono" subj=system_u:system_r:httpd_t:s0 key=(null)
How can I fix this please? Dan
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You can add it using audit2allow
# grep http /var/log/audit/audit.log | audit2allow -M myhttp # semodule -i myhttp.pp
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