patch to fs/proc/base.c

[Nikita Danilov]

Hello, 

following patch cures oopses in 2.4.7-pre9 when 
proc_pid_make_inode() is called on task with task->mm == NULL.

Linus, please apply, if you haven't got a bunch of equivalent patches
already, which is doubtful.

Nikita.
------------------------------------------------------------
--- linux-2.4.7-pre9/fs/proc/base.c    Fri Jul 20 14:57:55 2001
+++ linux-2.4.7-pre9.patched/fs/proc/base.c     Fri Jul 20 17:03:23 2001
@@ -670,7 +670,7 @@ static struct inode *proc_pid_make_inode
        inode->u.proc_i.task = task;
        inode->i_uid = 0;
        inode->i_gid = 0;
-       if (ino == PROC_PID_INO || task->mm->dumpable) {
+       if (ino == PROC_PID_INO || (task->mm && task->mm->dumpable)) {
                inode->i_uid = task->euid;
                inode->i_gid = task->egid;
        }
------------------------------------------------------------