Bug 2149948
| Summary: | iptables creates AVCs on /sys/fs/cgroup | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 8 | Reporter: | Renaud Métrich <rmetrich> |
| Component: | selinux-policy | Assignee: | Zdenek Pytela <zpytela> |
| Status: | CLOSED DUPLICATE | QA Contact: | BaseOS QE Security Team <qe-baseos-security> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 8.7 | CC: | lvrabec, mmalik, nknazeko, ssekidde, vbhope |
| Target Milestone: | rc | Keywords: | Triaged |
| Target Release: | 8.8 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | No Doc Update | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2022-12-02 08:53:44 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Fixed in RHEL 8.8. *** This bug has been marked as a duplicate of bug 2134820 *** |
Description of problem: A customer reports AVCs when iptables is executing, e.g.: -------- 8< ---------------- 8< ---------------- 8< ---------------- 8< -------- type=PROCTITLE ... : proctitle=iptables -w 5 -W 100000 -S KUBE-PROXY-CANARY -t mangle type=EXECVE ... : argc=9 a0=iptables a1=-w a2=5 a3=-W a4=100000 a5=-S a6=KUBE-PROXY-CANARY a7=-t a8=mangle type=SYSCALL ... : arch=x86_64 syscall=execve success=yes exit=0 a0=0xc00efb61f8 a1=0xc00536e870 a2=0xc00536e8c0 a3=0x0 items=0 ppid=127049 pid=3581642 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=iptables exe=/usr/sbin/xtables-nft-multi subj=system_u:system_r:iptables_t:s0 key=(null) type=AVC ... : avc: denied { ioctl } for pid=3581642 comm=iptables path=/sys/fs/cgroup dev="tmpfs" ino=1222 scontext=system_u:system_r:iptables_t:s0 tcontext=system_u:object_r:cgroup_t:s0 tclass=dir permissive=0 -------- 8< ---------------- 8< ---------------- 8< ---------------- 8< -------- Apparently this was a well-known issue on Fedora which was fixed by https://github.com/fedora-selinux/selinux-policy/pull/1083/files Please backport this to RHEL8. Version-Release number of selected component (if applicable): selinux-policy-3.14.3-108.el8.noarch How reproducible: Always on customer system