diff options
Diffstat (limited to 'security')
| -rw-r--r-- | security/selinux/hooks.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 44e9cd47054..f5df8c70a9b 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -1695,9 +1695,10 @@ static inline void flush_unauthorized_files(struct files_struct * files) struct tty_struct *tty; struct fdtable *fdt; long j = -1; + int drop_tty = 0; mutex_lock(&tty_mutex); - tty = current->signal->tty; + tty = get_current_tty(); if (tty) { file_list_lock(); file = list_entry(tty->tty_files.next, typeof(*file), f_u.fu_list); @@ -1710,12 +1711,14 @@ static inline void flush_unauthorized_files(struct files_struct * files) struct inode *inode = file->f_dentry->d_inode; if (inode_has_perm(current, inode, FILE__READ | FILE__WRITE, NULL)) { - /* Reset controlling tty. */ - current->signal->tty = NULL; - current->signal->tty_old_pgrp = 0; + drop_tty = 1; } } file_list_unlock(); + + /* Reset controlling tty. */ + if (drop_tty) + proc_set_tty(current, NULL); } mutex_unlock(&tty_mutex); |