Bug 253321
| Summary: | unable to log in to AFS home directory via sshd | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Nalin Dahyabhai <nalin> |
| Component: | selinux-policy | Assignee: | Daniel Walsh <dwalsh> |
| Status: | CLOSED RAWHIDE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | rawhide | ||
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2007-09-12 17:00:36 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: | |||
Fixed in selinux-policy-3.0.5-9.fc8 ALready fixed in rawhide |
Description of problem: When I attempt to log in using forwarded Kerberos credentials, pam_krb5 (or a different module) gets called to use those credentials to set tokens. The module needs to perform an ioctl on /proc/fs/openafs/afs_ioctl (context="system_u:object_r:proc_t:s0") to do this, but that appears to be denied by policy. Versions: openafs-1.4.4 selinux-policy-targeted-3.0.5-7.fc8 pam_krb5-2.2.18-1 openssh-server-4.5p1-8.fc8 kernel-2.6.21-1.3230.fc8 The specific denial which causes this (verified with audit2allow -M) is: type=AVC msg=audit(1187381427.559:17006): avc: denied { write } for pid=21245 comm="sshd" name="afs_ioctl" dev=proc ino=4026532117 scontext=system_u:system_r:sshd_t:s0-s0:c0.c1023 tcontext=system_u:object_r:proc_t:s0 tclass=file Here's the generated .te file which apparently made it work again: module openafs 1.0; require { type sshd_t; type proc_t; class file write; } #============= sshd_t ============== allow sshd_t proc_t:file write;