| commit | 1a657f78dcc8ea7c53eaa1f2a45ea2315738c15f | [log] [tgz] |
|---|---|---|
| author | Oleg Nesterov <oleg@tv-sign.ru> | Mon Oct 02 02:18:59 2006 -0700 |
| committer | Linus Torvalds <torvalds@g5.osdl.org> | Mon Oct 02 07:57:25 2006 -0700 |
| tree | a19972027792082fed505c8d540f7d877e37c0ab | |
| parent | 1c0d04c9e44f4a248335c33d2be7c7f7b06ff359 [diff] |
[PATCH] introduce get_task_pid() to fix unsafe get_pid() proc_pid_make_inode: ei->pid = get_pid(task_pid(task)); I think this is not safe. get_pid() can be preempted after checking "pid != NULL". Then the task exits, does detach_pid(), and RCU frees the pid. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>