Bug 2222199
| Summary: | SELinux prevents the targetd service from searching under /proc/sys/net/ | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Milos Malik <mmalik> |
| Component: | selinux-policy | Assignee: | Zdenek Pytela <zpytela> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 38 | CC: | dwalsh, lvrabec, mmalik, nknazeko, omosnacek, pkoncity, vmojzis, zpytela |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | selinux-policy-38.21-1.fc38 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2023-07-18 01:24:35 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
SELinux denials caught in permissive mode:
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type=PROCTITLE msg=audit(07/12/2023 08:52:31.334:759) : proctitle=targetd
type=PATH msg=audit(07/12/2023 08:52:31.334:759) : item=0 name=/proc/sys/net/ipv6/conf/all/disable_ipv6 inode=36543 dev=00:14 mode=file,644 ouid=root ogid=root rdev=00:00 obj=system_u:object_r:sysctl_net_t:s0 nametype=NORMAL cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 cap_frootid=0
type=CWD msg=audit(07/12/2023 08:52:31.334:759) : cwd=/
type=SYSCALL msg=audit(07/12/2023 08:52:31.334:759) : arch=x86_64 syscall=openat success=yes exit=4 a0=AT_FDCWD a1=0x7ffee5e2a6c0 a2=O_RDONLY|O_NOCTTY|O_CLOEXEC a3=0x0 items=1 ppid=1 pid=8770 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=targetd exe=/usr/bin/python3.12 subj=system_u:system_r:targetd_t:s0 key=(null)
type=AVC msg=audit(07/12/2023 08:52:31.334:759) : avc: denied { open } for pid=8770 comm=targetd path=/proc/sys/net/ipv6/conf/all/disable_ipv6 dev="proc" ino=36543 scontext=system_u:system_r:targetd_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=file permissive=1
type=AVC msg=audit(07/12/2023 08:52:31.334:759) : avc: denied { read } for pid=8770 comm=targetd name=disable_ipv6 dev="proc" ino=36543 scontext=system_u:system_r:targetd_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=file permissive=1
type=AVC msg=audit(07/12/2023 08:52:31.334:759) : avc: denied { search } for pid=8770 comm=targetd name=net dev="proc" ino=14870 scontext=system_u:system_r:targetd_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=dir permissive=1
----
type=PROCTITLE msg=audit(07/12/2023 08:52:31.337:760) : proctitle=targetd
type=PATH msg=audit(07/12/2023 08:52:31.337:760) : item=0 name= inode=36543 dev=00:14 mode=file,644 ouid=root ogid=root rdev=00:00 obj=system_u:object_r:sysctl_net_t:s0 nametype=NORMAL cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 cap_frootid=0
type=CWD msg=audit(07/12/2023 08:52:31.337:760) : cwd=/
type=SYSCALL msg=audit(07/12/2023 08:52:31.337:760) : arch=x86_64 syscall=newfstatat success=yes exit=0 a0=0x4 a1=0x7f63d899fbce a2=0x7ffee5e2a720 a3=0x1000 items=1 ppid=1 pid=8770 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=targetd exe=/usr/bin/python3.12 subj=system_u:system_r:targetd_t:s0 key=(null)
type=AVC msg=audit(07/12/2023 08:52:31.337:760) : avc: denied { getattr } for pid=8770 comm=targetd path=/proc/sys/net/ipv6/conf/all/disable_ipv6 dev="proc" ino=36543 scontext=system_u:system_r:targetd_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=file permissive=1
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Test coverage for this BZ exists in a form of PR: * https://src.fedoraproject.org/tests/selinux/pull-request/405 The policy PR has been just merged. FEDORA-2023-2663818afd has been submitted as an update to Fedora 38. https://bodhi.fedoraproject.org/updates/FEDORA-2023-2663818afd FEDORA-2023-2663818afd has been pushed to the Fedora 38 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2023-2663818afd` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2023-2663818afd See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates. FEDORA-2023-2663818afd has been pushed to the Fedora 38 stable repository. If problem still persists, please make note of it in this bug report. |
selinux-policy-38.20-1.fc39.noarch selinux-policy-devel-38.20-1.fc39.noarch selinux-policy-targeted-38.20-1.fc39.noarch targetcli-2.1.56-2.fc39.noarch targetd-0.10.2-2.fc39.noarch target-restore-2.1.76-2.fc39.noarch Reproducible: Always Steps to Reproduce: 1. get a Fedora rawhide machine (targeted policy is active) 2. run the following automated TC: * /CoreOS/selinux-policy/Regression/targetd-and-similar 3. search for SELinux denials Actual Results: ---- type=PROCTITLE msg=audit(07/12/2023 02:24:03.329:718) : proctitle=targetd type=PATH msg=audit(07/12/2023 02:24:03.329:718) : item=0 name=/proc/sys/net/ipv6/conf/all/disable_ipv6 nametype=UNKNOWN cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 cap_frootid=0 type=CWD msg=audit(07/12/2023 02:24:03.329:718) : cwd=/ type=SYSCALL msg=audit(07/12/2023 02:24:03.329:718) : arch=x86_64 syscall=openat success=no exit=EACCES(Permission denied) a0=AT_FDCWD a1=0x7ffc3799e500 a2=O_RDONLY|O_NOCTTY|O_CLOEXEC a3=0x0 items=1 ppid=1 pid=10509 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=targetd exe=/usr/bin/python3.12 subj=system_u:system_r:targetd_t:s0 key=(null) type=AVC msg=audit(07/12/2023 02:24:03.329:718) : avc: denied { search } for pid=10509 comm=targetd name=net dev="proc" ino=14870 scontext=system_u:system_r:targetd_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=dir permissive=0 ---- Expected Results: No SELinux denials