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-rw-r--r--kernel/audit_watch.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/kernel/audit_watch.c b/kernel/audit_watch.c
index 27ef8dcf7cd8..359035caac88 100644
--- a/kernel/audit_watch.c
+++ b/kernel/audit_watch.c
@@ -540,8 +540,14 @@ int audit_dupe_exe(struct audit_krule *new, struct audit_krule *old)
int audit_exe_compare(struct task_struct *tsk, struct audit_fsnotify_mark *mark)
{
- unsigned long ino = tsk->mm->exe_file->f_inode->i_ino;
- dev_t dev = tsk->mm->exe_file->f_inode->i_sb->s_dev;
-
+ struct file *exe_file;
+ unsigned long ino;
+ dev_t dev;
+
+ rcu_read_lock();
+ exe_file = rcu_dereference(tsk->mm->exe_file);
+ ino = exe_file->f_inode->i_ino;
+ dev = exe_file->f_inode->i_sb->s_dev;
+ rcu_read_unlock();
return audit_mark_compare(mark, ino, dev);
}
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