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authorLinus Torvalds <torvalds@linux-foundation.org>2016-05-18 18:46:55 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-18 18:46:55 -0700
commit03e1aa1cbb65d8fb214d82a98933362d1c115a4f (patch)
tree764b58ab9fb9f597f3f5d097edbd7dc522229380 /kernel/audit.c
parent97f00905ec98472050d65c46629237b299f29035 (diff)
parent188e3c5cd2b672620291e64a21f1598fe91e40b6 (diff)
downloadlinux-sh-03e1aa1cbb65d8fb214d82a98933362d1c115a4f.tar.gz
Merge branch 'stable-4.7' of git://git.infradead.org/users/pcmoore/audit
Pull audit updates from Paul Moore: "Four small audit patches for 4.7. Two are simple cleanups around the audit thread management code, one adds a tty field to AUDIT_LOGIN events, and the final patch makes tty_name() usable regardless of CONFIG_TTY. Nothing controversial, and it all passes our regression test" * 'stable-4.7' of git://git.infradead.org/users/pcmoore/audit: tty: provide tty_name() even without CONFIG_TTY audit: add tty field to LOGIN event audit: we don't need to __set_current_state(TASK_RUNNING) audit: cleanup prune_tree_thread
Diffstat (limited to 'kernel/audit.c')
-rw-r--r--kernel/audit.c30
1 files changed, 10 insertions, 20 deletions
diff --git a/kernel/audit.c b/kernel/audit.c
index 678c3f000191..22bb4f24f071 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -64,7 +64,6 @@
#include <linux/security.h>
#endif
#include <linux/freezer.h>
-#include <linux/tty.h>
#include <linux/pid_namespace.h>
#include <net/netns/generic.h>
@@ -430,7 +429,6 @@ restart:
attempts, audit_pid);
set_current_state(TASK_INTERRUPTIBLE);
schedule();
- __set_current_state(TASK_RUNNING);
goto restart;
}
}
@@ -1341,15 +1339,14 @@ static inline void audit_get_stamp(struct audit_context *ctx,
static long wait_for_auditd(long sleep_time)
{
DECLARE_WAITQUEUE(wait, current);
- set_current_state(TASK_UNINTERRUPTIBLE);
- add_wait_queue_exclusive(&audit_backlog_wait, &wait);
if (audit_backlog_limit &&
- skb_queue_len(&audit_skb_queue) > audit_backlog_limit)
+ skb_queue_len(&audit_skb_queue) > audit_backlog_limit) {
+ add_wait_queue_exclusive(&audit_backlog_wait, &wait);
+ set_current_state(TASK_UNINTERRUPTIBLE);
sleep_time = schedule_timeout(sleep_time);
-
- __set_current_state(TASK_RUNNING);
- remove_wait_queue(&audit_backlog_wait, &wait);
+ remove_wait_queue(&audit_backlog_wait, &wait);
+ }
return sleep_time;
}
@@ -1890,21 +1887,14 @@ void audit_log_task_info(struct audit_buffer *ab, struct task_struct *tsk)
{
const struct cred *cred;
char comm[sizeof(tsk->comm)];
- char *tty;
+ struct tty_struct *tty;
if (!ab)
return;
/* tsk == current */
cred = current_cred();
-
- spin_lock_irq(&tsk->sighand->siglock);
- if (tsk->signal && tsk->signal->tty && tsk->signal->tty->name)
- tty = tsk->signal->tty->name;
- else
- tty = "(none)";
- spin_unlock_irq(&tsk->sighand->siglock);
-
+ tty = audit_get_tty(tsk);
audit_log_format(ab,
" ppid=%d pid=%d auid=%u uid=%u gid=%u"
" euid=%u suid=%u fsuid=%u"
@@ -1920,11 +1910,11 @@ void audit_log_task_info(struct audit_buffer *ab, struct task_struct *tsk)
from_kgid(&init_user_ns, cred->egid),
from_kgid(&init_user_ns, cred->sgid),
from_kgid(&init_user_ns, cred->fsgid),
- tty, audit_get_sessionid(tsk));
-
+ tty ? tty_name(tty) : "(none)",
+ audit_get_sessionid(tsk));
+ audit_put_tty(tty);
audit_log_format(ab, " comm=");
audit_log_untrustedstring(ab, get_task_comm(comm, tsk));
-
audit_log_d_path_exe(ab, tsk->mm);
audit_log_task_context(ab);
}