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Description of problem: Triggered on client by an amcheck from the server SELinux is preventing amandad from 'getattr' accesses on the filesystem /sys/fs/cgroup. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that amandad should be allowed getattr access on the cgroup filesystem 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 'amandad' --raw | audit2allow -M my-amandad # semodule -X 300 -i my-amandad.pp Additional Information: Source Context system_u:system_r:amanda_t:s0 Target Context system_u:object_r:cgroup_t:s0 Target Objects /sys/fs/cgroup [ filesystem ] Source amandad Source Path amandad Port <Unknown> Host (removed) Source RPM Packages Target RPM Packages SELinux Policy RPM selinux-policy-targeted-34.6-1.fc34.noarch Local Policy RPM selinux-policy-targeted-34.6-1.fc34.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 5.11.19-300.fc34.x86_64 #1 SMP Fri May 7 14:17:15 UTC 2021 x86_64 x86_64 Alert Count 1 First Seen 2021-05-13 21:12:02 PDT Last Seen 2021-05-13 21:12:02 PDT Local ID c1e4cda5-d1b0-49cd-bc18-b7e1f7a76c4c Raw Audit Messages type=AVC msg=audit(1620965522.91:2367): avc: denied { getattr } for pid=11412 comm="amandad" name="/" dev="cgroup2" ino=1 scontext=system_u:system_r:amanda_t:s0 tcontext=system_u:object_r:cgroup_t:s0 tclass=filesystem permissive=0 Hash: amandad,amanda_t,cgroup_t,filesystem,getattr Version-Release number of selected component: selinux-policy-targeted-34.6-1.fc34.noarch Additional info: component: selinux-policy reporter: libreport-2.14.0 hashmarkername: setroubleshoot kernel: 5.11.19-300.fc34.x86_64 type: libreport
Following SELinux denial appears in enforcing mode: ---- type=PROCTITLE msg=audit(05/14/2021 04:24:43.644:447) : proctitle=/usr/sbin/amandad -auth=krb5 amdump amindexd amidxtaped type=PATH msg=audit(05/14/2021 04:24:43.644:447) : item=0 name=/sys/fs/cgroup/ inode=1 dev=00:1b mode=dir,555 ouid=root ogid=root rdev=00:00 obj=system_u:object_r:cgroup_t:s0 nametype=NORMAL cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 cap_frootid=0 type=CWD msg=audit(05/14/2021 04:24:43.644:447) : cwd=/ type=SYSCALL msg=audit(05/14/2021 04:24:43.644:447) : arch=x86_64 syscall=statfs success=no exit=EACCES(Permission denied) a0=0x7fcb77d273a9 a1=0x7ffdacf0d470 a2=0x7fcb792ef260 a3=0x0 items=1 ppid=1 pid=32575 auid=unset uid=root gid=disk euid=root suid=root fsuid=root egid=disk sgid=disk fsgid=disk tty=(none) ses=unset comm=amandad exe=/usr/lib64/amanda/amandad subj=system_u:system_r:amanda_t:s0 key=(null) type=AVC msg=audit(05/14/2021 04:24:43.644:447) : avc: denied { getattr } for pid=32575 comm=amandad name=/ dev="cgroup2" ino=1 scontext=system_u:system_r:amanda_t:s0 tcontext=system_u:object_r:cgroup_t:s0 tclass=filesystem permissive=0 ---- # rpm -qa selinux\* amanda\* | sort amanda-3.5.1-28.fc34.x86_64 amanda-client-3.5.1-28.fc34.x86_64 amanda-libs-3.5.1-28.fc34.x86_64 amanda-server-3.5.1-28.fc34.x86_64 selinux-policy-34.6-1.fc34.noarch selinux-policy-devel-34.6-1.fc34.noarch selinux-policy-targeted-34.6-1.fc34.noarch #
Following SELinux denials appeared in permissive mode: ---- type=PROCTITLE msg=audit(05/14/2021 04:30:05.589:707) : proctitle=/usr/sbin/amandad -auth=krb5 amdump amindexd amidxtaped type=PATH msg=audit(05/14/2021 04:30:05.589:707) : item=0 name=/proc/1/environ inode=36728 dev=00:16 mode=file,400 ouid=root ogid=root rdev=00:00 obj=system_u:system_r:init_t:s0 nametype=NORMAL cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 cap_frootid=0 type=CWD msg=audit(05/14/2021 04:30:05.589:707) : cwd=/ type=SYSCALL msg=audit(05/14/2021 04:30:05.589:707) : arch=x86_64 syscall=openat success=yes exit=6 a0=0xffffff9c a1=0x7ffd55b34360 a2=O_RDONLY|O_CLOEXEC a3=0x0 items=1 ppid=1 pid=47385 auid=unset uid=root gid=disk euid=root suid=root fsuid=root egid=disk sgid=disk fsgid=disk tty=(none) ses=unset comm=amandad exe=/usr/lib64/amanda/amandad subj=system_u:system_r:amanda_t:s0 key=(null) type=AVC msg=audit(05/14/2021 04:30:05.589:707) : avc: denied { sys_ptrace } for pid=47385 comm=amandad capability=sys_ptrace scontext=system_u:system_r:amanda_t:s0 tcontext=system_u:system_r:amanda_t:s0 tclass=capability permissive=1 ---- type=PROCTITLE msg=audit(05/14/2021 04:30:05.590:708) : proctitle=/usr/sbin/amandad -auth=krb5 amdump amindexd amidxtaped type=PATH msg=audit(05/14/2021 04:30:05.590:708) : item=0 name=/sys/fs/cgroup/ inode=1 dev=00:1b mode=dir,555 ouid=root ogid=root rdev=00:00 obj=system_u:object_r:cgroup_t:s0 nametype=NORMAL cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 cap_frootid=0 type=CWD msg=audit(05/14/2021 04:30:05.590:708) : cwd=/ type=SYSCALL msg=audit(05/14/2021 04:30:05.590:708) : arch=x86_64 syscall=statfs success=yes exit=0 a0=0x7f3867428515 a1=0x7ffd55b34420 a2=0x7f386883d260 a3=0x1000 items=1 ppid=1 pid=47385 auid=unset uid=root gid=disk euid=root suid=root fsuid=root egid=disk sgid=disk fsgid=disk tty=(none) ses=unset comm=amandad exe=/usr/lib64/amanda/amandad subj=system_u:system_r:amanda_t:s0 key=(null) type=AVC msg=audit(05/14/2021 04:30:05.590:708) : avc: denied { getattr } for pid=47385 comm=amandad name=/ dev="cgroup2" ino=1 scontext=system_u:system_r:amanda_t:s0 tcontext=system_u:object_r:cgroup_t:s0 tclass=filesystem permissive=1 ----
I've submitted a Fedora PR to address the issue: https://github.com/fedora-selinux/selinux-policy/pull/739
FEDORA-2021-558e78822f has been submitted as an update to Fedora 34. https://bodhi.fedoraproject.org/updates/FEDORA-2021-558e78822f
FEDORA-2021-558e78822f has been pushed to the Fedora 34 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2021-558e78822f` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2021-558e78822f See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2021-558e78822f has been pushed to the Fedora 34 stable repository. If problem still persists, please make note of it in this bug report.