Bug 2367958
| Summary: | denied read on LiveCD | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Karel Zak <kzak> |
| Component: | selinux-policy | Assignee: | Zdenek Pytela <zpytela> |
| Status: | ASSIGNED --- | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | high | Docs Contact: | |
| Priority: | medium | ||
| Version: | rawhide | CC: | dwalsh, ipedrosa, lvrabec, mmalik, ngompa13, omosnacek, pkoncity, vmojzis, zbyszek, zpytela |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 2360108 | ||
Hi Karel, in the denials there is permissive=1 indicating the system was in permissive mode. Did you change it intentionally in order to get all denials? Additional question: Do you happen to know what changed in util-linux v2.41 leading to these denials? I can't see anything at a first glance: https://www.kernel.org/pub/linux/utils/util-linux/v2.41/v2.41-ReleaseNotes The log is from a system booted with enforcing=0 on the kernel command line. The only relevant thing in the update is that there is no loop device, but a directly mounted image. See #2367956. Hey team, do you need more logs or anything else? The issue is with the block on the util-linux upgrade, and it's affecting other Rawhide plans like the migration to lastlog2. No more logs, rather more insights and background. Reading files with iso9660_t directly just does not feel right. |
After upgrading to the latest util-linux v2.41, the LiveCD is almost useless due to denied reads: May 22 09:42:37 localhost-live audit[1348]: AVC avc: denied { read } for pid=1348 comm="firewalld" path="/LiveOS/squashfs.img" dev="sr0" ino=4294 scontext=system_u:system_r:firewalld_t:s0 tcontext=system_u:object_r:iso9660_t:s0 tclass=file permissive=1 May 22 09:42:48 localhost-live audit[2484]: AVC avc: denied { read } for pid=2484 comm="sssd_kcm" path="/LiveOS/squashfs.img" dev="sr0" ino=4294 scontext=system_u:system_r:sssd_t:s0 tcontext=system_u:object_r:iso9660_t:s0 tclass=file permissive=1 May 22 09:42:49 localhost-live audit[2515]: AVC avc: denied { read } for pid=2515 comm="systemd-localed" path="/LiveOS/squashfs.img" dev="sr0" ino=4294 scontext=system_u:system_r:systemd_localed_t:s0 tcontext=system_u:object_r:iso9660_t:s0 tclass=file permissive=1 May 22 09:42:50 localhost-live audit[2562]: AVC avc: denied { read } for pid=2562 comm="pkla-check-auth" path="/LiveOS/squashfs.img" dev="sr0" ino=4294 scontext=system_u:system_r:policykit_auth_t:s0 tcontext=system_u:object_r:iso9660_t:s0 tclass=file permissive=1 May 22 09:42:50 localhost-live audit[2555]: AVC avc: denied { read } for pid=2555 comm="geoclue" path="/LiveOS/squashfs.img" dev="sr0" ino=4294 scontext=system_u:system_r:geoclue_t:s0 tcontext=system_u:object_r:iso9660_t:s0 tclass=file permissive=1 May 22 09:42:51 localhost-live audit[2555]: AVC avc: denied { read } for pid=2555 comm="geoclue" path="/LiveOS/squashfs.img" dev="sr0" ino=4294 scontext=system_u:system_r:geoclue_t:s0 tcontext=system_u:object_r:iso9660_t:s0 tclass=file permissive=1 May 22 09:42:54 localhost-live audit[2765]: AVC avc: denied { read } for pid=2765 comm="pkla-check-auth" path="/LiveOS/squashfs.img" dev="sr0" ino=4294 scontext=system_u:system_r:policykit_auth_t:s0 tcontext=system_u:object_r:iso9660_t:s0 tclass=file permissive=1 May 22 09:43:01 localhost-live audit[2607]: AVC avc: denied { read } for pid=2607 comm="wpa_supplicant" path="/LiveOS/squashfs.img" dev="sr0" ino=4294 scontext=system_u:system_r:NetworkManager_t:s0 tcontext=system_u:object_r:iso9660_t:s0 tclass=file permissive=1 May 22 09:43:18 localhost-live audit[2270]: AVC avc: denied { read } for pid=2270 comm="cupsd" path="/LiveOS/squashfs.img" dev="sr0" ino=4294 scontext=system_u:system_r:cupsd_t:s0-s0:c0.c1023 tcontext=system_u:object_r:iso9660_t:s0 tclass=file permissive=1 I believe the issue is related to https://bugzilla.redhat.com/show_bug.cgi?id=2367956. Reproducible: Always