Bug 427733
| Summary: | samba_share_t:filesystem getattr denied - no used space/capacity info available for clients | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Tomasz Ostrowski <tometzky+redhat> |
| Component: | selinux-policy | Assignee: | Daniel Walsh <dwalsh> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | low | ||
| Version: | 7 | ||
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | 2.6.4-69 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2008-01-29 10:54:39 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: | |||
You can allow this for now by executing # audit2allow -M mypol -i /var/log/audit/audit.log # semodule -i mypol.pp Fixed in selinux-policy-2.6.4-69.fc7 |
Description of problem: When samba share is on dedicated partition mounted with option context="system_u:object_r:samba_share_t:s0" then clients are unable to get used space and capacity information from a share. The following is logged to audit.log: type=AVC msg=audit(1199692559.651:766): avc: denied { getattr } for pid=2440 comm="smbd" name="/" dev=sdb1 ino=2 scontext=user_u:system_r:smbd_t:s0 tcontext=system_u:object_r:samba_share_t:s0 tclass=filesystem type=SYSCALL msg=audit(1199692559.651:766): arch=40000003 syscall=268 success=no exit=-13 a0=b7ef4677 a1=54 a2=bf8ac548 a3=bf8ac548 items=0 ppid=2347 pid=2440 auid=500 uid=559 gid=0 euid=559 suid=0 fsuid=559 egid=100 sgid=0 fsgid=100 tty=(none) comm="smbd" exe="/usr/sbin/smbd" subj=user_u:system_r:smbd_t:s0 key=(null) Version-Release number of selected component (if applicable): selinux-policy-2.6.4-66.fc7 samba-3.0.28-0.fc7 How reproducible: Always Steps to Reproduce: # creating dedicated share partition service smb stop dd if=/dev/zero of=/tmp/shares.img bs=1M count=10 mkfs.ext2 -F /tmp/shares.img mkdir /tmp/shares mount -o loop,context="system_u:object_r:samba_share_t:s0" \ /tmp/shares.img /tmp/shares # defining share mv /etc/samba/smb.conf /etc/samba/smb.conf.bak echo -e "[global]\n\tsecurity=share\n\n" \ > /etc/samba/smb.conf echo -e "[test]\n\tguest ok=yes\n\tguest only=yes\n\tpath=/tmp/shares" \ >> /etc/samba/smb.conf service smb start smbclient //localhost/test guest -c "dir" audit2allow -l < /var/log/audit/audit.log # cleaning up service smb stop mv -f /etc/samba/smb.conf.bak /etc/samba/smb.conf umount /tmp/shares Actual results (along output): 0 blocks of size 0. 10 blocks available allow smbd_t samba_share_t:filesystem getattr; Expected results (along output): 19822 blocks of size 512. 18614 blocks available