Bug 1973808
| Summary: | SELinux is preventing /usr/bin/file from 'search' accesses on the directory /dev/dma_heap/system. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Michael Setzer II <mikes> |
| Component: | selinux-policy | Assignee: | Zdenek Pytela <zpytela> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 33 | CC: | dwalsh, grepl.miroslav, lvrabec, mmalik, ncarboni, omosnace, vmojzis, zpytela |
| Target Milestone: | --- | Keywords: | Triaged |
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Unspecified | ||
| Whiteboard: | abrt_hash:f782e24f5987b5e5adad5944db5d628f806c2b08704562b6ddc71cb864c9e721;VARIANT_ID=workstation; | ||
| Fixed In Version: | selinux-policy-3.14.6-39.fc33 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2021-07-18 01:03:23 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: | |||
I've submitted a Fedora PR to backport the solution to F33: https://github.com/fedora-selinux/selinux-policy/pull/788 For anyone else who might be running into this..
Relabeling after disabling selinux didn't work for me, but I was able to get things working again by doing a `dnf downgrade selinux-policy` which brought me from selinux-policy-3.14.6-38.fc33.noarch to selinux-policy-3.14.6-28.fc33.noarch.
This issue was preventing docker from running some containers for me with audit logs like the following:
type=AVC msg=audit(1624300881.843:1562): avc: denied { read } for pid=1760 comm="dockerd" name="dma_heap" dev="devtmpfs" ino=150 scontext=system_u:system_r:container_runtime_t:s0 tcontext=system_u:object_r:dma_device_t:s0 tclass=dir permissive=0
FEDORA-2021-3b341e9e71 has been submitted as an update to Fedora 33. https://bodhi.fedoraproject.org/updates/FEDORA-2021-3b341e9e71 FEDORA-2021-3b341e9e71 has been pushed to the Fedora 33 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2021-3b341e9e71` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2021-3b341e9e71 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. FEDORA-2021-3b341e9e71 has been pushed to the Fedora 33 stable repository. If problem still persists, please make note of it in this bug report. |
Description of problem: Shows up in SELinux Troubleshooter. Might be linked to the cron.daily running of rkhunter?? SELinux is preventing /usr/bin/file from 'search' accesses on the directory /dev/dma_heap/system. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that file should be allowed search access on the system directory 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 'file' --raw | audit2allow -M my-file # semodule -X 300 -i my-file.pp Additional Information: Source Context unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1 023 Target Context system_u:object_r:dma_device_t:s0 Target Objects /dev/dma_heap/system [ dir ] Source file Source Path /usr/bin/file Port <Unknown> Host (removed) Source RPM Packages file-5.39-3.fc33.x86_64 Target RPM Packages SELinux Policy RPM selinux-policy-targeted-3.14.6-38.fc33.noarch Local Policy RPM selinux-policy-targeted-3.14.6-38.fc33.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Permissive Host Name (removed) Platform Linux (removed) 5.12.10-200.fc33.x86_64 #1 SMP Thu Jun 10 14:19:48 UTC 2021 x86_64 x86_64 Alert Count 1 First Seen 2021-06-19 04:30:47 ChST Last Seen 2021-06-19 04:30:47 ChST Local ID 93da5410-67c1-496a-8fcc-7ff40a101072 Raw Audit Messages type=AVC msg=audit(1624041047.343:1867): avc: denied { search } for pid=641697 comm="file" name="dma_heap" dev="devtmpfs" ino=130 scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=system_u:object_r:dma_device_t:s0 tclass=dir permissive=1 type=SYSCALL msg=audit(1624041047.343:1867): arch=x86_64 syscall=lstat success=yes exit=0 a0=7ffd31a29e03 a1=7ffd31a27a20 a2=7ffd31a27a20 a3=22 items=1 ppid=641696 pid=641697 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts1 ses=2 comm=file exe=/usr/bin/file subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null) type=CWD msg=audit(1624041047.343:1867): cwd=/etc/cron.daily type=PATH msg=audit(1624041047.343:1867): item=0 name=/dev/dma_heap/system inode=131 dev=00:05 mode=020600 ouid=0 ogid=0 rdev=fb:00 obj=system_u:object_r:dma_device_t:s0 nametype=NORMAL cap_fp=0 cap_fi=0 cap_fe=0 cap_fver=0 cap_frootid=0 Hash: file,unconfined_t,dma_device_t,dir,search Version-Release number of selected component: selinux-policy-targeted-3.14.6-38.fc33.noarch Additional info: component: selinux-policy reporter: libreport-2.14.0 hashmarkername: setroubleshoot kernel: 5.12.10-200.fc33.x86_64 type: libreport