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author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-19 03:46:55 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-19 03:46:55 +0200 |
commit | 03e1aa1cbb65d8fb214d82a98933362d1c115a4f (patch) | |
tree | 764b58ab9fb9f597f3f5d097edbd7dc522229380 /kernel/audit.c | |
parent | Merge tag 'rproc-v4.7' of git://github.com/andersson/remoteproc (diff) | |
parent | tty: provide tty_name() even without CONFIG_TTY (diff) | |
download | linux-03e1aa1cbb65d8fb214d82a98933362d1c115a4f.tar.xz linux-03e1aa1cbb65d8fb214d82a98933362d1c115a4f.zip |
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.c | 30 |
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); } |