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authorOleg Nesterov <oleg@redhat.com>2013-09-15 19:11:09 +0200
committerEric Paris <eparis@redhat.com>2013-11-05 11:07:18 -0500
commitd48d805122e39c066898df2e460875d3aaf60508 (patch)
tree01142204314c7e0d938dba19b9c07c27bf97a277 /kernel/auditsc.c
parentaf0e493d304262162dcc0e0b39ee47b12461d003 (diff)
downloadlinux-d48d805122e39c066898df2e460875d3aaf60508.tar.bz2
audit_alloc: clear TIF_SYSCALL_AUDIT if !audit_context
If audit_filter_task() nacks the new thread it makes sense to clear TIF_SYSCALL_AUDIT which can be copied from parent by dup_task_struct(). A wrong TIF_SYSCALL_AUDIT is not really bad but it triggers the "slow" audit paths in entry.S to ensure the task can not miss audit_syscall_*() calls, this is pointless if the task has no ->audit_context. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Steve Grubb <sgrubb@redhat.com> Acked-by: Eric Paris <eparis@redhat.com> Signed-off-by: Richard Guy Briggs <rgb@redhat.com> Signed-off-by: Eric Paris <eparis@redhat.com>
Diffstat (limited to 'kernel/auditsc.c')
-rw-r--r--kernel/auditsc.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 9845cb32b60a..95293abb877a 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -943,8 +943,10 @@ int audit_alloc(struct task_struct *tsk)
return 0; /* Return if not auditing. */
state = audit_filter_task(tsk, &key);
- if (state == AUDIT_DISABLED)
+ if (state == AUDIT_DISABLED) {
+ clear_tsk_thread_flag(tsk, TIF_SYSCALL_AUDIT);
return 0;
+ }
if (!(context = audit_alloc_context(state))) {
kfree(key);