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+++ This bug was initially created as a clone of Bug #1421075 +++
Description of problem:
All rules which allow the ptrace operation should be controlled via the deny_ptrace boolean.
* https://fedoraproject.org/wiki/Features/SELinuxDenyPtrace
Version-Release number of selected component (if applicable):
selinux-policy-3.14.3-39.el8.noarch
selinux-policy-targeted-3.14.3-39.el8.noarch
selinux-policy-mls-3.14.3-39.el8.noarch
selinux-policy-devel-3.14.3-39.el8.noarch
How reproducible:
* always
Steps to Reproduce:
# sesearch --allow -p ptrace | grep -v deny_ptrace | grep allow
allow staff_t wireshark_t:process { getattr ptrace sigchld sigkill signal signull sigstop transition };
allow svirt_t svirt_t:process { fork getcap getsched ptrace setrlimit setsched sigchld sigkill signal signull sigstop };
allow sysadm_t lockdev_t:process { getattr ptrace sigchld sigkill signal signull sigstop transition };
allow sysadm_t wireshark_t:process { getattr ptrace sigchld sigkill signal signull sigstop transition };
#
Actual results:
* the output of above-mentioned command contains 4 allow rules
Expected results:
* the output of above-mentioned command is empty
The expectation that all ptrace permissions should be controlled by the deny_ptrace boolean is correct, changing the behaviour in the middle of RHEL 8 lifecycle though means a nonnegligible regression risk, especially for virt domains:
allow svirt_t svirt_t:process { fork getcap getsched ptrace setrlimit setsched sigchld sigkill signal signull sigstop };
hence retargetting to RHEL 9.
Comment 8RHEL Program Management
2021-10-20 07:27:06 UTC
After evaluating this issue, there are no plans to address it further or fix it in an upcoming release. Therefore, it is being closed. If plans change such that this issue will be fixed in an upcoming release, then the bug can be reopened.