On Sun, Apr 05, 1998 at 03:31:00AM -0500, Jason Burrell wrote:
>
> I managed to get a NULL pointer dereference in the kernel. It occured
> while doing a system update under Debian's package manager. The AMD script
> segfaulted, the error appeared, and all went on as normal from there.
>
>
It seems like proc_permission oopses on a NULL fs_struct pointer
(possibly because find_task_by_pid returns a zombie process). The
attached patch might help (for fs/proc/inode.c):
astor
-- Alexander Kjeldaas, Guardian Networks AS, Trondheim, Norway http://www.guardian.no/--nFreZHaLTZJo0R7j Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=proc_diff
--- inode.c.old Sun Apr 5 15:46:24 1998 +++ inode.c Sun Apr 5 15:47:59 1998 @@ -199,7 +199,7 @@ p = find_task_by_pid(pid); if (p != NULL) - de = p->fs->root; + de = p->fs ? p->fs->root : NULL; read_unlock(&tasklist_lock); if (p == NULL)
--nFreZHaLTZJo0R7j--
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