From: Alexander Viro <aviro@redhat.com> Subject: [RHEL5.2] bz#360841 Date: Fri, 9 Nov 2007 11:52:24 -0500 Bugzilla: 360841 Message-Id: <20071109165224.GE28304@devserv.devel.redhat.com> Changelog: [audit] still allocate contexts when audit is disabled Disabling audit at runtime by auditctl doesn't mean that we can stop allocating contexts for new processes; we don't want to miss them when that sucker is reenabled. diff --git a/kernel/audit.c b/kernel/audit.c index f93c271..83227f8 100644 --- a/kernel/audit.c +++ b/kernel/audit.c @@ -70,6 +70,7 @@ static int audit_initialized; * 1 - auditing enabled * 2 - auditing enabled and configuration is locked/unchangeable. */ int audit_enabled; +int audit_ever_enabled; /* Default state when kernel boots without any parameters. */ static int audit_default; @@ -340,8 +341,10 @@ static int audit_set_enabled(int state, uid_t loginuid, u32 sid) state, old, loginuid, res); /* If we are allowed, make the change */ - if (res == 1) + if (res == 1) { audit_enabled = state; + audit_ever_enabled |= !!state; + } /* Not allowed, update reason */ else if (rc == 0) rc = -EPERM; @@ -965,6 +968,7 @@ static int __init audit_init(void) skb_queue_head_init(&audit_skb_queue); audit_initialized = 1; audit_enabled = audit_default; + audit_ever_enabled |= !!audit_default; /* Register the callback with selinux. This callback will be invoked * when a new policy is loaded. */ @@ -992,8 +996,10 @@ static int __init audit_enable(char *str) printk(KERN_INFO "audit: %s%s\n", audit_default ? "enabled" : "disabled", audit_initialized ? "" : " (after initialization)"); - if (audit_initialized) + if (audit_initialized) { audit_enabled = audit_default; + audit_ever_enabled |= !!audit_default; + } return 1; } diff --git a/kernel/auditsc.c b/kernel/auditsc.c index bce9ecd..250f00f 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -70,6 +70,7 @@ #include "audit.h" extern struct list_head audit_filter_list[]; +extern int audit_ever_enabled; /* AUDIT_NAMES is the number of slots we reserve in the audit_context * for saving names from getname(). */ @@ -814,7 +815,7 @@ int audit_alloc(struct task_struct *tsk) struct audit_context *context; enum audit_state state; - if (likely(!audit_enabled)) + if (likely(!audit_ever_enabled)) return 0; /* Return if not auditing. */ state = audit_filter_task(tsk);