Bug 1340572
| Summary: | Policy for "ip netns add" should cover dirs, not just files | |||
|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Garrett Holmstrom <gholms> | |
| Component: | selinux-policy | Assignee: | Lukas Vrabec <lvrabec> | |
| Status: | CLOSED ERRATA | QA Contact: | Milos Malik <mmalik> | |
| Severity: | medium | Docs Contact: | ||
| Priority: | medium | |||
| Version: | 7.2 | CC: | lvrabec, mgrepl, mmalik, plautrba, pvrabec, ssekidde | |
| Target Milestone: | rc | |||
| Target Release: | --- | |||
| Hardware: | All | |||
| OS: | Linux | |||
| Whiteboard: | ||||
| Fixed In Version: | selinux-policy-3.13.1-76.el7 | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 1340952 (view as bug list) | Environment: | ||
| Last Closed: | 2016-11-04 02:29:59 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: | ||||
| Bug Depends On: | ||||
| Bug Blocks: | 1340952 | |||
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHBA-2016-2283.html |
Description of problem: There appears to be policy written to handle the way ``ip netns add foo'' handles mounting, but it is only for files, not directories: allow ifconfig_t ifconfig_var_run_t:file mounton; This policy should cover directories as well, as running the command above fails with the following audit messages: type=EXECVE msg=audit(1464390580.741:115465): argc=4 a0="ip" a1="netns" a2="add" a3="foo" type=CWD msg=audit(1464390580.741:115465): cwd="/" type=PATH msg=audit(1464390580.741:115465): item=0 name="/usr/sbin/ip" inode=671152156 dev=fd:00 mode=0100755 ouid=0 ogid=0 rdev=00:00 obj=system_u:object_r:ifconfig_exec_t:s0 objtype=NORMAL type=PATH msg=audit(1464390580.741:115465): item=1 name="/lib64/ld-linux-x86-64.so.2" inode=134225977 dev=fd:00 mode=0100755 ouid=0 ogid=0 rdev=00:00 obj=system_u:object_r:ld_so_t:s0 objtype=NORMAL type=AVC msg=audit(1464390580.742:115466): avc: denied { mounton } for pid=6336 comm="ip" path="/run/netns" dev="tmpfs" ino=144036 scontext=system_u:system_r:ifconfig_t:s0 tcontext=system_u:object_r:ifconfig_var_run_t:s0 tclass=dir type=SYSCALL msg=audit(1464390580.742:115466): arch=c000003e syscall=165 success=no exit=-22 a0=440894 a1=43b3ea a2=43c5ed a3=104000 items=2 ppid=1064 pid=6336 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="ip" exe="/usr/sbin/ip" subj=system_u:system_r:ifconfig_t:s0 key=(null) type=CWD msg=audit(1464390580.742:115466): cwd="/" type=PATH msg=audit(1464390580.742:115466): item=0 name="/var/run/netns" objtype=UNKNOWN type=PATH msg=audit(1464390580.742:115466): item=1 name="/var/run/netns" inode=144036 dev=00:12 mode=040755 ouid=0 ogid=0 rdev=00:00 obj=system_u:object_r:ifconfig_var_run_t:s0 objtype=NORMAL Version-Release number of selected component (if applicable): iproute-3.10.0-54.el7.x86_64 selinux-policy-3.13.1-60.el7_2.3.noarch How reproducible: When enforcing Steps to Reproduce: 1. setenforce 1 2. ip netns add foo 3. ip netns list Actual results: mount --make-shared /var/run/netns failed: Permission denied Expected results: foo