diff options
| author | Ben Dooks <ben-linux@fluff.org> | 2008-11-03 20:46:44 +0000 |
|---|---|---|
| committer | Ben Dooks <ben-linux@fluff.org> | 2008-11-03 20:46:44 +0000 |
| commit | 973a971d5a5ef0d6a60e5c9b0df675fef6be3383 (patch) | |
| tree | d49729a4bff6fd5bdacfcc57e7ba44911fd8812c /security/selinux/hooks.c | |
| parent | f4bafd5dc0d4f03f6dc4466d233a4601c54d40b3 (diff) | |
| parent | a75952b72a0fff3031124003e62118111aed42c1 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into rmk-next
Diffstat (limited to 'security/selinux/hooks.c')
| -rw-r--r-- | security/selinux/hooks.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 3e3fde7c1d2..f85597a4d73 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -2126,14 +2126,16 @@ static inline void flush_unauthorized_files(struct files_struct *files) tty = get_current_tty(); if (tty) { file_list_lock(); - file = list_entry(tty->tty_files.next, typeof(*file), f_u.fu_list); - if (file) { + if (!list_empty(&tty->tty_files)) { + struct inode *inode; + /* Revalidate access to controlling tty. Use inode_has_perm on the tty inode directly rather than using file_has_perm, as this particular open file may belong to another process and we are only interested in the inode-based check here. */ - struct inode *inode = file->f_path.dentry->d_inode; + file = list_first_entry(&tty->tty_files, struct file, f_u.fu_list); + inode = file->f_path.dentry->d_inode; if (inode_has_perm(current, inode, FILE__READ | FILE__WRITE, NULL)) { drop_tty = 1; |