Bug 856488
| Summary: | AVCs when running udevd test with disabled unconfined and unlabelednet | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Michal Trunecka <mtruneck> |
| Component: | selinux-policy | Assignee: | Miroslav Grepl <mgrepl> |
| Status: | CLOSED NOTABUG | QA Contact: | Michal Trunecka <mtruneck> |
| Severity: | medium | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 6.4 | CC: | dwalsh, ebenes, mmalik |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2013-01-04 07:59:57 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Michal, could you ping me to discuss this issue. What service is using run_init? Maybe change it to run_init sh -c start_udev, or we don't need run_init. Exactly. I believe we don't need run_init. Michal, please reopen if you don't agree. |
Description of problem: Selinux blocks running udevd (start_udev) and reported AVCs when unconfined and unlabelednet selinux modules are disabled. The pest passes without any AVC when both modules are enabled. AVCs in permissive mode: ---- time->Wed Sep 12 08:34:44 2012 type=PATH msg=audit(1347431684.203:5228): item=2 name=(null) inode=327047 dev=08:03 mode=0100755 ouid=0 ogid=0 rdev=00:00 obj=system_u:object_r:ld_so_t:s0 type=PATH msg=audit(1347431684.203:5228): item=1 name=(null) inode=156823 dev=08:03 mode=0100755 ouid=0 ogid=0 rdev=00:00 obj=system_u:object_r:shell_exec_t:s0 type=PATH msg=audit(1347431684.203:5228): item=0 name="/sbin/start_udev" inode=6076 dev=08:03 mode=0100755 ouid=0 ogid=0 rdev=00:00 obj=system_u:object_r:udev_exec_t:s0 type=CWD msg=audit(1347431684.203:5228): cwd="/" type=EXECVE msg=audit(1347431684.203:5228): argc=3 a0="/bin/bash" a1="/sbin/start_udev" type=EXECVE msg=audit(1347431684.203:5228): argc=4 a0="/bin/bash" a1="/sbin/start_udev" type=SYSCALL msg=audit(1347431684.203:5228): arch=c000003e syscall=59 success=yes exit=0 a0=7fffa993018a a1=7fffa9930360 a2=7fffa9930380 a3=7fffa992ffc0 items=3 ppid=20131 pid=20132 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts6 ses=3 comm="start_udev" exe="/bin/bash" subj=system_u:system_r:initrc_t:s0 key=(null) type=AVC msg=audit(1347431684.203:5228): avc: denied { entrypoint } for pid=20132 comm="run_init" path="/sbin/start_udev" dev=sda3 ino=6076 scontext=system_u:system_r:initrc_t:s0 tcontext=system_u:object_r:udev_exec_t:s0 tclass=file ---- time->Wed Sep 12 08:34:44 2012 type=PATH msg=audit(1347431684.251:5229): item=0 name="/proc/kcore" inode=4026532037 dev=00:03 mode=0100400 ouid=0 ogid=0 rdev=00:00 obj=system_u:object_r:proc_kcore_t:s0 type=CWD msg=audit(1347431684.251:5229): cwd="/" type=SYSCALL msg=audit(1347431684.251:5229): arch=c000003e syscall=4 success=yes exit=0 a0=7fff8dd4c608 a1=7fff8dd4bb40 a2=7fff8dd4bb40 a3=a items=1 ppid=20132 pid=20153 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts6 ses=3 comm="ln" exe="/bin/ln" subj=system_u:system_r:initrc_t:s0 key=(null) type=AVC msg=audit(1347431684.251:5229): avc: denied { getattr } for pid=20153 comm="ln" path="/proc/kcore" dev=proc ino=4026532037 scontext=system_u:system_r:initrc_t:s0 tcontext=system_u:object_r:proc_kcore_t:s0 tclass=file Version-Release number of selected component (if applicable): udev-147-2.42.el6.x86_64 selinux-policy-3.7.19-161.el6.noarch selinux-policy-minimum-3.7.19-161.el6.noarch selinux-policy-targeted-3.7.19-161.el6.noarch selinux-policy-mls-3.7.19-161.el6.noarch selinux-policy-doc-3.7.19-161.el6.noarch How reproducible: always Steps to Reproduce: 1. semodule -d unconfined; semoudle -d unlabelednet 2. killall udevd 3. run_init start_udev Actual results: execvp: Permission denied and AVCs are reported Expected results: udevd is started without AVCs