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Description of problem:
During gfs2 growfs testing, lvm refreshes storage changes across the cluster with dlm_controld. In that process dlm_controld calls uuid_generate() from libuuid, which reads /dev/random and fails with the following AVC error
time->Wed Aug 21 15:50:23 2019
type=PROCTITLE msg=audit(1566420623.015:488): proctitle=646C6D5F636F6E74726F6C64002D730030
type=SYSCALL msg=audit(1566420623.015:488): arch=c000003e syscall=21 success=no exit=-13 a0=7f6816dd44d4 a1=4 a2=55fd6dfa2ec0 a3=55fd6d997010 items=0 ppid=1 pid=7279 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="dlm_controld" exe="/usr/sbin/dlm_controld" subj=system_u:system_r:dlm_controld_t:s0 key=(null)
type=AVC msg=audit(1566420623.015:488): avc: denied { read } for pid=7279 comm="dlm_controld" name="random" dev="devtmpfs" ino=8812 scontext=system_u:system_r:dlm_controld_t:s0 tcontext=system_u:object_r:random_device_t:s0 tclass=chr_file permissive=0
This does not cause a failure to refresh the logical volumes, nor causes gfs2_growfs to fail. It will leave messages in the audit log which customers might raise concerns about.
Version-Release number of selected component (if applicable):
selinux-policy-3.14.3-20.el8.noarch
dlm-4.0.9-3.el8.x86_64
How reproducible:
Easily
Steps to Reproduce:
1. Run growfs test
2.
3.
Actual results:
Expected results:
Additional info:
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2020:1773
Description of problem: During gfs2 growfs testing, lvm refreshes storage changes across the cluster with dlm_controld. In that process dlm_controld calls uuid_generate() from libuuid, which reads /dev/random and fails with the following AVC error time->Wed Aug 21 15:50:23 2019 type=PROCTITLE msg=audit(1566420623.015:488): proctitle=646C6D5F636F6E74726F6C64002D730030 type=SYSCALL msg=audit(1566420623.015:488): arch=c000003e syscall=21 success=no exit=-13 a0=7f6816dd44d4 a1=4 a2=55fd6dfa2ec0 a3=55fd6d997010 items=0 ppid=1 pid=7279 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="dlm_controld" exe="/usr/sbin/dlm_controld" subj=system_u:system_r:dlm_controld_t:s0 key=(null) type=AVC msg=audit(1566420623.015:488): avc: denied { read } for pid=7279 comm="dlm_controld" name="random" dev="devtmpfs" ino=8812 scontext=system_u:system_r:dlm_controld_t:s0 tcontext=system_u:object_r:random_device_t:s0 tclass=chr_file permissive=0 This does not cause a failure to refresh the logical volumes, nor causes gfs2_growfs to fail. It will leave messages in the audit log which customers might raise concerns about. Version-Release number of selected component (if applicable): selinux-policy-3.14.3-20.el8.noarch dlm-4.0.9-3.el8.x86_64 How reproducible: Easily Steps to Reproduce: 1. Run growfs test 2. 3. Actual results: Expected results: Additional info: