Bug 2216876
| Summary: | SELinux is preventing sendmail from 'create' accesses on the file sendmail.pid. | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | James Davidson <james> | ||||||
| Component: | selinux-policy | Assignee: | Zdenek Pytela <zpytela> | ||||||
| Status: | CLOSED DUPLICATE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||||
| Severity: | unspecified | Docs Contact: | |||||||
| Priority: | unspecified | ||||||||
| Version: | 38 | CC: | dwalsh, eiki, james, lvrabec, mmalik, nknazeko, omosnacek, piergiorgio.sartor, pkoncity, toby, vmojzis, zpytela | ||||||
| Target Milestone: | --- | ||||||||
| Target Release: | --- | ||||||||
| Hardware: | x86_64 | ||||||||
| OS: | Unspecified | ||||||||
| Whiteboard: | abrt_hash:07fdf4efae53bb507fc5beee08e95e5706ebc65a334756d78449b6337906eb5c;VARIANT_ID=workstation; | ||||||||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |||||||
| Doc Text: | Story Points: | --- | |||||||
| Clone Of: | Environment: | ||||||||
| Last Closed: | 2023-06-26 21:34:11 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: | |||||||||
| Attachments: |
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Created attachment 1972175 [details]
File: description
Created attachment 1972176 [details]
File: os_info
I downgraded selinux-policy and selinux-policy-targeted to 38.8-2 on my system as a workaround to get sendmail running again. I can confirm that the issue with sendmail was not present in selinux-policy 38.15-1, but that wasn't easily available for downgrade, so I just went back to 38.8-2 because that was easier. This was the module created after two or three iterations of search & allow:
---- cut here ---- cut here ----
module my-sendmail 1.0;
require {
type sendmail_var_run_t;
type sendmail_t;
class file { create getattr lock open unlink write };
}
#============= sendmail_t ==============
#!!!! This avc is allowed in the current policy
allow sendmail_t sendmail_var_run_t:file { create getattr lock open unlink write };
---- cut here ---- cut here ----
Apparently, "sendmail" requires "create", "getattr", etc. for files in /var/run (meaning /run).
Hope this helps,
bye,
pg
Confirming that downgrading selinux-policy-targeted-38.17-1.fc38 to selinux-policy-targeted-38.15-1.fc38 fixed this for me. *** This bug has been marked as a duplicate of bug 2216060 *** |
Description of problem: Upgraded from Fedora 37 to Fedoara 38 and sendmail now failes to start with this SELinux Alert. SELinux is preventing sendmail from 'create' accesses on the file sendmail.pid. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that sendmail should be allowed create access on the sendmail.pid file 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: # ausearch -c 'sendmail' --raw | audit2allow -M my-sendmail # semodule -X 300 -i my-sendmail.pp Additional Information: Source Context system_u:system_r:sendmail_t:s0 Target Context system_u:object_r:sendmail_var_run_t:s0 Target Objects sendmail.pid [ file ] Source sendmail Source Path sendmail Port <Unknown> Host (removed) Source RPM Packages Target RPM Packages SELinux Policy RPM selinux-policy-targeted-38.17-1.fc38.noarch Local Policy RPM selinux-policy-targeted-38.17-1.fc38.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 6.3.8-200.fc38.x86_64 #1 SMP PREEMPT_DYNAMIC Thu Jun 15 02:15:40 UTC 2023 x86_64 Alert Count 4 First Seen 2023-06-22 17:36:50 PDT Last Seen 2023-06-22 17:40:15 PDT Local ID a307e526-14b1-46b5-bc6a-9b2983870948 Raw Audit Messages type=AVC msg=audit(1687480815.586:277): avc: denied { create } for pid=11664 comm="sendmail" name="sendmail.pid" scontext=system_u:system_r:sendmail_t:s0 tcontext=system_u:object_r:sendmail_var_run_t:s0 tclass=file permissive=0 Hash: sendmail,sendmail_t,sendmail_var_run_t,file,create Version-Release number of selected component: selinux-policy-targeted-38.17-1.fc38.noarch Additional info: reporter: libreport-2.17.10 component: selinux-policy comment: Upgraded from Fedora 37 to Fedoara 38 and sendmail now failes to start with this SELinux Alert. type: libreport package: selinux-policy-targeted-38.17-1.fc38.noarch hashmarkername: setroubleshoot reason: SELinux is preventing sendmail from 'create' accesses on the file sendmail.pid. kernel: 6.3.8-200.fc38.x86_64 component: selinux-policy