diff options
| author | Alan Cox <alan@lxorguk.ukuu.org.uk> | 2006-09-29 02:01:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-29 09:18:25 -0700 |
| commit | eb84a20e9e6b98dcb33023ad22241d79107a08a7 (patch) | |
| tree | 4971aef730cc3a1917463afe1dbb381dea664e99 /kernel/auditsc.c | |
| parent | 5f412b24240d92212e50ebbaff2dff20c9e6f3d0 (diff) | |
[PATCH] audit/accounting: tty locking
Add tty locking around the audit and accounting code.
The whole current->signal-> locking is all deeply strange but it's for
someone else to sort out. Add rather than replace the lock for acct.c
Signed-off-by: Alan Cox <alan@redhat.com>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/auditsc.c')
| -rw-r--r-- | kernel/auditsc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/auditsc.c b/kernel/auditsc.c index fb83c5cb8c3..10514763175 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -817,6 +817,8 @@ static void audit_log_exit(struct audit_context *context, struct task_struct *ts audit_log_format(ab, " success=%s exit=%ld", (context->return_valid==AUDITSC_SUCCESS)?"yes":"no", context->return_code); + + mutex_lock(&tty_mutex); if (tsk->signal && tsk->signal->tty && tsk->signal->tty->name) tty = tsk->signal->tty->name; else @@ -838,6 +840,9 @@ static void audit_log_exit(struct audit_context *context, struct task_struct *ts context->gid, context->euid, context->suid, context->fsuid, context->egid, context->sgid, context->fsgid, tty); + + mutex_unlock(&tty_mutex); + audit_log_task_info(ab, tsk); if (context->filterkey) { audit_log_format(ab, " key="); |