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Bug 1970256 - SElinux prevents sssd_be and unix_chkpwd from 'getattr' access on the filesystem /proc.
Summary: SElinux prevents sssd_be and unix_chkpwd from 'getattr' access on the filesys...
Keywords:
Status: CLOSED DUPLICATE of bug 1967125
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: selinux-policy
Version: 8.5
Hardware: All
OS: Unspecified
unspecified
high
Target Milestone: beta
: ---
Assignee: Zdenek Pytela
QA Contact: BaseOS QE Security Team
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-06-10 07:42 UTC by dhodovsk
Modified: 2022-01-05 13:43 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: No Doc Update
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-06-10 08:57:40 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description dhodovsk 2021-06-10 07:42:32 UTC 
On the latest 8.5.0 composes, tests are failing with the following error:

SELinux status:                 enabled
SELinuxfs mount:                /sys/fs/selinux
SELinux root directory:         /etc/selinux
Loaded policy name:             targeted
Current mode:                   enforcing
Mode from config file:          enforcing
Policy MLS status:              enabled
Policy deny_unknown status:     allowed
Memory protection checking:     actual (secure)
Max kernel policy version:      33
selinux-policy-3.14.3-69.el8.noarch
----
time->Thu Jun 10 01:01:41 2021
type=PROCTITLE msg=audit(1623301301.103:30): proctitle=2F7573722F6C6962657865632F737373642F737373645F6265002D2D646F6D61696E00696D706C696369745F66696C6573002D2D7569640030002D2D6769640030002D2D6C6F676765723D66696C6573
type=SYSCALL msg=audit(1623301301.103:30): arch=c0000015 syscall=100 success=no exit=-13 a0=0 a1=7fffcb1623c8 a2=0 a3=0 items=0 ppid=842 pid=984 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="sssd_be" exe="/usr/libexec/sssd/sssd_be" subj=system_u:system_r:sssd_t:s0 key=(null)
type=AVC msg=audit(1623301301.103:30): avc:  denied  { getattr } for  pid=984 comm="sssd_be" name="/" dev="proc" ino=1 scontext=system_u:system_r:sssd_t:s0 tcontext=system_u:object_r:proc_t:s0 tclass=filesystem permissive=0
----
time->Wed Jun  9 21:02:25 2021
type=PROCTITLE msg=audit(1623286945.354:56): proctitle=2F7573722F7362696E2F756E69785F63686B70776400726F6F740063686B657870697279
type=SYSCALL msg=audit(1623286945.354:56): arch=c0000015 syscall=100 success=no exit=-13 a0=3 a1=7fffcddcf958 a2=0 a3=0 items=0 ppid=4850 pid=4867 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="unix_chkpwd" exe="/usr/sbin/unix_chkpwd" subj=system_u:system_r:chkpwd_t:s0 key=(null)
type=AVC msg=audit(1623286945.354:56): avc:  denied  { getattr } for  pid=4867 comm="unix_chkpwd" name="/" dev="proc" ino=1 scontext=system_u:system_r:chkpwd_t:s0 tcontext=system_u:object_r:proc_t:s0 tclass=filesystem permissive=0

Link to beaker: https://beaker.engineering.redhat.com/jobs/?simplesearch=RHEL-8.5.0-20210609.d.5

Could it be related to https://bugzilla.redhat.com/show_bug.cgi?id=1967125?
Comment 1 Zdenek Pytela 2021-06-10 08:57:40 UTC 
> Could it be related to https://bugzilla.redhat.com/show_bug.cgi?id=1967125?
Yes, the fix allows the permissions to "domain", i. e. for all SELinux process types.

*** This bug has been marked as a duplicate of bug 1967125 ***
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