From f0cb46186be7437cd78c96271938b3902cec10b7 Mon Sep 17 00:00:00 2001 From: Zdenek Pytela Date: Wed, 26 Jan 2022 10:54:36 +0100 Subject: [PATCH] Allow NetworkManager talk with unconfined user over unix domain dgram socket Reference: https://gitbub.com/fedora-selinux/selinux-policy/commit/f0cb46186be7437cd78c96271938b3902cec10b7 Conflict: NA This permission is required for wpa_cli be able to communicate with the wpa_supplicant service in CLI. The wpa control interface socket file is open in /run/wpa_supplicant, the client socket in /tmp. This issue possibly started to appear after unconfined_t was removed from the unpriv_user_domain attribute with the 4b4eec49a55 ("Removed adding to attribute unpriv_userdomain from userdom_unpriv_type template") commit. Addresses the following AVC denial: type=PROCTITLE msg=audit(01/24/2022 02:56:04.040:501) : proctitle=/usr/sbin/wpa_supplicant -g /run/wpa_supplicant/global -c /etc/wpa_supplicant/wpa_supplicant.conf -u -s type=PATH msg=audit(01/24/2022 02:56:04.040:501) : item=0 name=/tmp/wpa_ctrl_26793-1 inode=730142 dev=fd:01 mode=socket,755 ouid=root ogid=root rdev=00:00 obj=unconfined_u:object_r:user_tmp_t:s0 nametype=NORMAL cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 cap_frootid=0 type=CWD msg=audit(01/24/2022 02:56:04.040:501) : cwd=/ type=SOCKADDR msg=audit(01/24/2022 02:56:04.040:501) : saddr={ saddr_fam=local path=/tmp/wpa_ctrl_26793-1 } type=SYSCALL msg=audit(01/24/2022 02:56:04.040:501) : arch=x86_64 syscall=sendto success=yes exit=5 a0=0x5 a1=0x5556370a4860 a2=0x5 a3=0x0 items=1 ppid=1 pid=26219 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=wpa_supplicant exe=/usr/sbin/wpa_supplicant subj=system_u:system_r:NetworkManager_t:s0 key=(null) type=AVC msg=audit(01/24/2022 02:56:04.040:501) : avc: denied { sendto } for pid=26219 comm=wpa_supplicant path=/tmp/wpa_ctrl_26793-1 scontext=system_u:system_r:NetworkManager_t:s0 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=unix_dgram_socket permissive=1 Resolves: rhbz#2044048 Signed-off-by: lujie54 --- policy/modules/contrib/networkmanager.te | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/policy/modules/contrib/networkmanager.te b/policy/modules/contrib/networkmanager.te index 8230910..1a53f51 100644 --- a/policy/modules/contrib/networkmanager.te +++ b/policy/modules/contrib/networkmanager.te @@ -498,6 +498,11 @@ optional_policy(` openvswitch_stream_connect(NetworkManager_t) ') +optional_policy(` + unconfined_dgram_send(NetworkManager_t) +') + + tunable_policy(`use_ecryptfs_home_dirs',` fs_manage_ecryptfs_files(NetworkManager_t) ') -- 1.8.3.1