Bug 1975125

Summary: avc: denied for comm="systemd-gpt-aut" dev="tmpfs"
Product: [Fedora] Fedora Reporter: Bruno Goncalves <bgoncalv>
Component: selinux-policyAssignee: Zdenek Pytela <zpytela>
Status: CLOSED CURRENTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 35CC: dwalsh, grepl.miroslav, lvrabec, mmalik, omosnace, pwhalen, vmojzis, zpytela
Target Milestone: ---Keywords: Triaged
Target Release: ---   
Hardware: aarch64   
OS: Unspecified   
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Last Closed: 2022-04-08 13:55:26 UTC Type: Bug
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Blocks: 245418    

Description Bruno Goncalves 2021-06-23 07:22:44 UTC
Description of problem:
We noticed this issue running CKI "Networking bridge: sanity" [1] on a aarch64 machine.

----
time->Sun Jun 20 04:09:04 2021
type=AVC msg=audit(1624176544.113:1062): avc:  denied  { read } for  pid=770801 comm="systemd-gpt-aut" name="b252:1" dev="tmpfs" ino=916 scontext=system_u:system_r:systemd_gpt_generator_t:s0 tcontext=system_u:object_r:udev_var_run_t:s0 tclass=file permissive=1
----
time->Sun Jun 20 04:09:04 2021
type=AVC msg=audit(1624176544.113:1063): avc:  denied  { open } for  pid=770801 comm="systemd-gpt-aut" path="/run/udev/data/b252:1" dev="tmpfs" ino=916 scontext=system_u:system_r:systemd_gpt_generator_t:s0 tcontext=system_u:object_r:udev_var_run_t:s0 tclass=file permissive=1
----
time->Sun Jun 20 04:09:04 2021
type=AVC msg=audit(1624176544.113:1064): avc:  denied  { getattr } for  pid=770801 comm="systemd-gpt-aut" path="/run/udev/data/b252:1" dev="tmpfs" ino=916 scontext=system_u:system_r:systemd_gpt_generator_t:s0 tcontext=system_u:object_r:udev_var_run_t:s0 tclass=file permissive=1
----
time->Sun Jun 20 04:09:56 2021
type=AVC msg=audit(1624176596.073:1131): avc:  denied  { read } for  pid=771707 comm="systemd-gpt-aut" name="b252:1" dev="tmpfs" ino=916 scontext=system_u:system_r:systemd_gpt_generator_t:s0 tcontext=system_u:object_r:udev_var_run_t:s0 tclass=file permissive=1
----
time->Sun Jun 20 04:09:56 2021
type=AVC msg=audit(1624176596.073:1132): avc:  denied  { open } for  pid=771707 comm="systemd-gpt-aut" path="/run/udev/data/b252:1" dev="tmpfs" ino=916 scontext=system_u:system_r:systemd_gpt_generator_t:s0 tcontext=system_u:object_r:udev_var_run_t:s0 tclass=file permissive=1
----
time->Sun Jun 20 04:09:56 2021
type=AVC msg=audit(1624176596.073:1133): avc:  denied  { getattr } for  pid=771707 comm="systemd-gpt-aut" path="/run/udev/data/b252:1" dev="tmpfs" ino=916 scontext=system_u:system_r:systemd_gpt_generator_t:s0 tcontext=system_u:object_r:udev_var_run_t:s0 tclass=file permissive=1

Version-Release number of selected component (if applicable):
selinux-policy-34.9-1.fc35.noarch

How reproducible:
100%

Steps to Reproduce:
1.Run the test [1] on aarch64 machine on Rawhide compose that includes selinux-policy-34.9-1.fc35.noarch


[1] https://gitlab.com/cki-project/kernel-tests/-/tree/main/networking/bridge/sanity_check

Comment 2 Zdenek Pytela 2021-06-23 09:02:58 UTC
For a quick workaround, execute these commands:

echo '(allow systemd_gpt_generator_t udev_var_run_t (file (getattr open read ioctl lock)))' > local_sd_gpt_aut.cil
semodule -i local_sd_gpt_aut.cil

and, once the module is not needed,
semodule -r local_sd_gpt_aut.cil

Comment 3 Ben Cotton 2021-08-10 13:08:32 UTC
This bug appears to have been reported against 'rawhide' during the Fedora 35 development cycle.
Changing version to 35.