diff options
Diffstat (limited to 'kernel/audit.c')
| -rw-r--r-- | kernel/audit.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/kernel/audit.c b/kernel/audit.c index 95a20f3f52f..7c2893602d0 100644 --- a/kernel/audit.c +++ b/kernel/audit.c @@ -182,7 +182,7 @@ struct audit_buffer { struct audit_reply { __u32 portid; - struct net *net; + struct net *net; struct sk_buff *skb; }; @@ -396,7 +396,7 @@ static void audit_printk_skb(struct sk_buff *skb) if (printk_ratelimit()) pr_notice("type=%d %s\n", nlh->nlmsg_type, data); else - audit_log_lost("printk limit exceeded\n"); + audit_log_lost("printk limit exceeded"); } audit_hold_skb(skb); @@ -412,7 +412,7 @@ static void kauditd_send_skb(struct sk_buff *skb) BUG_ON(err != -ECONNREFUSED); /* Shouldn't happen */ if (audit_pid) { pr_err("*NO* daemon at audit_pid=%d\n", audit_pid); - audit_log_lost("auditd disappeared\n"); + audit_log_lost("auditd disappeared"); audit_pid = 0; audit_sock = NULL; } @@ -607,7 +607,7 @@ static int audit_netlink_ok(struct sk_buff *skb, u16 msg_type) { int err = 0; - /* Only support the initial namespaces for now. */ + /* Only support initial user namespace for now. */ /* * We return ECONNREFUSED because it tricks userspace into thinking * that audit was not configured into the kernel. Lots of users @@ -618,8 +618,7 @@ static int audit_netlink_ok(struct sk_buff *skb, u16 msg_type) * userspace will reject all logins. This should be removed when we * support non init namespaces!! */ - if ((current_user_ns() != &init_user_ns) || - (task_active_pid_ns(current) != &init_pid_ns)) + if (current_user_ns() != &init_user_ns) return -ECONNREFUSED; switch (msg_type) { @@ -639,6 +638,11 @@ static int audit_netlink_ok(struct sk_buff *skb, u16 msg_type) case AUDIT_TTY_SET: case AUDIT_TRIM: case AUDIT_MAKE_EQUIV: + /* Only support auditd and auditctl in initial pid namespace + * for now. */ + if ((task_active_pid_ns(current) != &init_pid_ns)) + return -EPERM; + if (!capable(CAP_AUDIT_CONTROL)) err = -EPERM; break; @@ -659,6 +663,7 @@ static int audit_log_common_recv_msg(struct audit_buffer **ab, u16 msg_type) { int rc = 0; uid_t uid = from_kuid(&init_user_ns, current_uid()); + pid_t pid = task_tgid_nr(current); if (!audit_enabled && msg_type != AUDIT_USER_AVC) { *ab = NULL; @@ -668,7 +673,7 @@ static int audit_log_common_recv_msg(struct audit_buffer **ab, u16 msg_type) *ab = audit_log_start(NULL, GFP_KERNEL, msg_type); if (unlikely(!*ab)) return rc; - audit_log_format(*ab, "pid=%d uid=%u", task_tgid_vnr(current), uid); + audit_log_format(*ab, "pid=%d uid=%u", pid, uid); audit_log_session_info(*ab); audit_log_task_context(*ab); @@ -1097,7 +1102,7 @@ static void __net_exit audit_net_exit(struct net *net) audit_sock = NULL; } - rcu_assign_pointer(aunet->nlsk, NULL); + RCU_INIT_POINTER(aunet->nlsk, NULL); synchronize_net(); netlink_kernel_release(sock); } @@ -1829,11 +1834,11 @@ void audit_log_task_info(struct audit_buffer *ab, struct task_struct *tsk) spin_unlock_irq(&tsk->sighand->siglock); audit_log_format(ab, - " ppid=%ld pid=%d auid=%u uid=%u gid=%u" + " ppid=%d pid=%d auid=%u uid=%u gid=%u" " euid=%u suid=%u fsuid=%u" " egid=%u sgid=%u fsgid=%u tty=%s ses=%u", - sys_getppid(), - tsk->pid, + task_ppid_nr(tsk), + task_pid_nr(tsk), from_kuid(&init_user_ns, audit_get_loginuid(tsk)), from_kuid(&init_user_ns, cred->uid), from_kgid(&init_user_ns, cred->gid), |