diff options
Diffstat (limited to 'security')
| -rw-r--r-- | security/selinux/hooks.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 55cec4d6f117..e4d81a42fca4 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -1689,10 +1689,12 @@ static inline void flush_unauthorized_files(struct files_struct * files) { struct avc_audit_data ad; struct file *file, *devnull = NULL; - struct tty_struct *tty = current->signal->tty; + struct tty_struct *tty; struct fdtable *fdt; long j = -1; + mutex_lock(&tty_mutex); + tty = current->signal->tty; if (tty) { file_list_lock(); file = list_entry(tty->tty_files.next, typeof(*file), f_u.fu_list); @@ -1712,6 +1714,7 @@ static inline void flush_unauthorized_files(struct files_struct * files) } file_list_unlock(); } + mutex_unlock(&tty_mutex); /* Revalidate access to inherited open files. */ |