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authorRichard Guy Briggs <rgb@redhat.com>2016-01-25 18:04:15 -0500
committerPaul Moore <paul@paul-moore.com>2016-01-25 18:04:15 -0500
commit935c9e7ff06abf12c45155f75ec2f712d3768095 (patch)
treeac1118ff77239fe8f939c9bfd2afe37cc5c4fa19 /kernel/audit.c
parent133e1e5acd4a63c4a0dcc413e90d5decdbce9c4a (diff)
downloadlinux-sh-935c9e7ff06abf12c45155f75ec2f712d3768095.tar.gz
audit: log failed attempts to change audit_pid configuration
Failed attempts to change the audit_pid configuration are not presently logged. One case is an attempt to starve an old auditd by starting up a new auditd when the old one is still alive and active. The other case is an attempt to orphan a new auditd when an old auditd shuts down. Log both as AUDIT_CONFIG_CHANGE messages with failure result. Signed-off-by: Richard Guy Briggs <rgb@redhat.com> Signed-off-by: Paul Moore <pmoore@redhat.com>
Diffstat (limited to 'kernel/audit.c')
-rw-r--r--kernel/audit.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/kernel/audit.c b/kernel/audit.c
index 2fd63d6879c5..8fa7533bf106 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -882,11 +882,15 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
int new_pid = s.pid;
pid_t requesting_pid = task_tgid_vnr(current);
- if ((!new_pid) && (requesting_pid != audit_pid))
+ if ((!new_pid) && (requesting_pid != audit_pid)) {
+ audit_log_config_change("audit_pid", new_pid, audit_pid, 0);
return -EACCES;
+ }
if (audit_pid && new_pid &&
- audit_replace(requesting_pid) != -ECONNREFUSED)
+ audit_replace(requesting_pid) != -ECONNREFUSED) {
+ audit_log_config_change("audit_pid", new_pid, audit_pid, 0);
return -EEXIST;
+ }
if (audit_enabled != AUDIT_OFF)
audit_log_config_change("audit_pid", new_pid, audit_pid, 1);
audit_pid = new_pid;