Bug 1335733
| Summary: | [Hyper-V][RHEL6.9]hypervvssd and selinux denials | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | xuli <xuli> |
| Component: | selinux-policy | Assignee: | Lukas Vrabec <lvrabec> |
| Status: | CLOSED ERRATA | QA Contact: | Milos Malik <mmalik> |
| Severity: | low | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 6.9 | CC: | boyang, dwalsh, hhei, jarno.huuskonen, jingli, ldu, leiwang, lvrabec, mgrepl, mmalik, plautrba, pvrabec, qe-baseos-security, ssekidde, vkuznets, xiaofwan, xuli, yacao |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | 1331309 | Environment: | |
| Last Closed: | 2017-03-21 09:46:39 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: | 1331309 | ||
| Bug Blocks: | |||
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Comment 4
Lukas Vrabec
2016-10-05 09:48:44 UTC
Test on kernel 2.6.32-642.el6.x86_64 with selinux-policy-3.7.19-292.el6.noarch.
Reproduce steps:
1) Attach a new scsi disc to VM, create ext4 fs there
2) Mount it to some location, e.g. I created /mnt/mydrive and mounted /dev/sdb there.
3) change context to something non-standard,e.g. 'chcon -R -t mysqld_db_t /mnt/mydrive/'
4) execute backup vm action from host, observe that backup action is failed.
ausearch -m avc
time->Mon Oct 10 13:25:10 2016
type=SYSCALL msg=audit(1476077110.163:57): arch=c000003e syscall=2 success=no exit=-13 a0=139525a a1=0 a2=3 a3=1 items=0 ppid=1 pid=1806 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="hv_vss_daemon" exe="/usr/sbin/hv_vss_daemon" subj=system_u:system_r:hypervvssd_t:s0 key=(null)
type=AVC msg=audit(1476077110.163:57): avc: denied { read } for pid=1806 comm="hv_vss_daemon" name="/" dev=sdb1 ino=2 scontext=system_u:system_r:hypervvssd_t:s0 tcontext=system_u:object_r:mysqld_db_t:s0 tclass=dir
----
time->Mon Oct 10 13:25:10 2016
type=SYSCALL msg=audit(1476077110.165:58): arch=c000003e syscall=2 success=no exit=-13 a0=139525a a1=0 a2=3 a3=1 items=0 ppid=1 pid=1806 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="hv_vss_daemon" exe="/usr/sbin/hv_vss_daemon" subj=system_u:system_r:hypervvssd_t:s0 key=(null)
type=AVC msg=audit(1476077110.165:58): avc: denied { read } for pid=1806 comm="hv_vss_daemon" name="/" dev=sdb1 ino=2 scontext=system_u:system_r:hypervvssd_t:s0 tcontext=system_u:object_r:mysqld_db_t:s0 tclass=dir
Thank you for your reminder, I should verify this bug early, test on latest selinux-policy-3.7.19-305.el6.noarch, it still has issue.
Kernel Version: 2.6.32-671.el6.x86_64
Windows host: Hyper-v 2016 and 2012R2
Reproduce steps:
1) Attach a new scsi disc to VM, create ext4 fs there
2) Mount it to some location, e.g. I created /mnt/mydrive and mounted /dev/sdb there.
3) change context to something non-standard,e.g. 'chcon -R -t mysqld_db_t /mnt/mydrive/'
4) execute backup vm action from host, observe that backup action is failed.
ausearch -m avc
----
time->Fri Nov 25 11:03:59 2016
type=SYSCALL msg=audit(1480043039.797:62): arch=c000003e syscall=16 success=no exit=-13 a0=6 a1=c0045877 a2=0 a3=1 items=0 ppid=1 pid=1683 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="hv_vss_daemon" exe="/usr/sbin/hv_vss_daemon" subj=system_u:system_r:hypervvssd_t:s0 key=(null)
type=AVC msg=audit(1480043039.797:62): avc: denied { write } for pid=1683 comm="hv_vss_daemon" path="/mnt/mydrive" dev=sdb1 ino=2 scontext=system_u:system_r:hypervvssd_t:s0 tcontext=system_u:object_r:mysqld_db_t:s0 tclass=dir
----
time->Fri Nov 25 11:03:59 2016
type=SYSCALL msg=audit(1480043039.797:63): arch=c000003e syscall=16 success=no exit=-13 a0=7 a1=c0045878 a2=0 a3=1 items=0 ppid=1 pid=1683 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="hv_vss_daemon" exe="/usr/sbin/hv_vss_daemon" subj=system_u:system_r:hypervvssd_t:s0 key=(null)
type=AVC msg=audit(1480043039.797:63): avc: denied { write } for pid=1683 comm="hv_vss_daemon" path="/mnt/mydrive" dev=sdb1 ino=2 scontext=system_u:system_r:hypervvssd_t:s0 tcontext=system_u:object_r:mysqld_db_t:s0 tclass=dir
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-2017-0627.html |