Bug 671000
| Summary: | SELinux is preventing /sbin/dhclient from using the 'execstack' accesses on a process. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Nikita Bige <bignikita> |
| Component: | selinux-policy | Assignee: | Miroslav Grepl <mgrepl> |
| Status: | CLOSED DUPLICATE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | low | ||
| Version: | 14 | CC: | dwalsh, mgrepl |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | setroubleshoot_trace_hash:eba3dd91712bea7207f437635e709f33d4f2362a317daa31f64fe9baead8ba5f | ||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-01-19 21:35:49 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: | |||
Ok I am going to close one of these as a link to allow_execstack which has a link to look for bad libraries. *** This bug has been marked as a duplicate of bug 652297 *** You could look for libraries that are marked as requiring execstack
# find /lib -exec execstack -q {} \; -print 2> /dev/null | grep ^X
# find /usr/lib -exec execstack -q {} \; -print 2> /dev/null | grep ^X
or
# find /lib64 -exec execstack -q {} \; -print 2> /dev/null | grep ^X
# find /usr/lib64 -exec execstack -q {} \; -print 2> /dev/null | grep ^X
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SELinux is preventing /sbin/dhclient from using the 'execstack' accesses on a process. ***** Plugin catchall (100. confidence) suggests *************************** If you believe that dhclient should be allowed execstack access on processes labeled dhcpc_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: # grep dhclient /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp Additional Information: Source Context unconfined_u:system_r:dhcpc_t:s0 Target Context unconfined_u:system_r:dhcpc_t:s0 Target Objects Unknown [ process ] Source dhclient Source Path /sbin/dhclient Port <Unknown> Host (removed) Source RPM Packages dhclient-4.2.0-16.P2.fc14 Target RPM Packages Policy RPM selinux-policy-3.9.7-20.fc14 Selinux Enabled True Policy Type targeted Enforcing Mode Permissive Host Name (removed) Platform Linux (removed) 2.6.35.10-74.fc14.x86_64 #1 SMP Thu Dec 23 16:04:50 UTC 2010 x86_64 x86_64 Alert Count 7 First Seen Wed 19 Jan 2011 07:56:21 PM MSK Last Seen Wed 19 Jan 2011 11:58:33 PM MSK Local ID 22fc65bc-9d14-4e65-bd60-c09f02032bae Raw Audit Messages type=AVC msg=audit(1295470713.635:104): avc: denied { execstack } for pid=30079 comm="dhclient" scontext=unconfined_u:system_r:dhcpc_t:s0 tcontext=unconfined_u:system_r:dhcpc_t:s0 tclass=process dhclient,dhcpc_t,dhcpc_t,process,execstack type=AVC msg=audit(1295470713.635:104): avc: denied { execmem } for pid=30079 comm="dhclient" scontext=unconfined_u:system_r:dhcpc_t:s0 tcontext=unconfined_u:system_r:dhcpc_t:s0 tclass=process dhclient,dhcpc_t,dhcpc_t,process,execstack type=SYSCALL msg=audit(1295470713.635:104): arch=x86_64 syscall=mprotect success=yes exit=0 a0=7fff5a1a1000 a1=1000 a2=1000007 a3=7fdc89007000 items=0 ppid=17147 pid=30079 auid=500 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=1 comm=dhclient exe=/sbin/dhclient subj=unconfined_u:system_r:dhcpc_t:s0 key=(null) dhclient,dhcpc_t,dhcpc_t,process,execstack #============= dhcpc_t ============== allow dhcpc_t self:process { execstack execmem };