Bug 1060551
| Summary: | gdb is not allowed ptrace access on processes labelled svirt_t | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Václav Mocek <next.little.owl> |
| Component: | selinux-policy | Assignee: | Miroslav Grepl <mgrepl> |
| Status: | CLOSED DUPLICATE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 20 | CC: | dominick.grift, dwalsh, lvrabec, mgrepl |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2014-02-04 14:43:41 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: | |||
*** This bug has been marked as a duplicate of bug 883556 *** |
Description of problem: When qemu crashes, gdb is not allowed ptrace access on processes labelled svirt_t. I would expect, that if gdb is run automatically, SELinux policy should not prevent its usage. Basically, it is a conflict of two tools in default configuration. ################################################################################ SELinux is preventing /usr/bin/gdb from using the ptrace access on a process. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that gdb should be allowed ptrace access on processes labeled svirt_t by default. Then you should report this as a bug. You can generate a local policy module to allow this access. Do allow this access for now by executing: # grep gdb /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp Additional Information: Source Context unconfined_u:system_r:svirt_t:s0:c411,c819 Target Context unconfined_u:system_r:svirt_t:s0:c411,c819 Target Objects [ process ] Source gdb Source Path /usr/bin/gdb Port <Unknown> Host amulet Source RPM Packages gdb-7.6.50.20130731-19.fc20.x86_64 Target RPM Packages Policy RPM selinux-policy-3.12.1-119.fc20.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name amulet Platform Linux amulet 3.12.8-300.fc20.x86_64 #1 SMP Thu Jan 16 01:07:50 UTC 2014 x86_64 x86_64 Alert Count 1 First Seen 2014-02-02 14:44:56 GMT Last Seen 2014-02-02 14:44:56 GMT Local ID e58b54ba-5893-426d-bc19-92545587fc05 Raw Audit Messages type=AVC msg=audit(1391352296.534:435): avc: denied { ptrace } for pid=11566 comm="gdb" scontext=unconfined_u:system_r:svirt_t:s0:c411,c819 tcontext=unconfined_u:system_r:svirt_t:s0:c411,c819 tclass=process type=SYSCALL msg=audit(1391352296.534:435): arch=x86_64 syscall=ptrace success=no exit=EACCES a0=10 a1=2cb7 a2=0 a3=0 items=0 ppid=11562 pid=11566 auid=1000 uid=1000 gid=1000 euid=1000 suid=1000 fsuid=1000 egid=1000 sgid=1000 fsgid=1000 ses=1 tty=(none) comm=gdb exe=/usr/bin/gdb subj=unconfined_u:system_r:svirt_t:s0:c411,c819 key=(null) Hash: gdb,svirt_t,svirt_t,process,ptrace