Re: BUG_ON(nd->inode != parent->d_inode);

From: Linus Torvalds
Date: Fri Mar 08 2013 - 21:09:00 EST


On Fri, Mar 8, 2013 at 6:03 PM, Dave Jones <davej@xxxxxxxxxx> wrote:
>
> existing pathname + 'a' = fine.
>
> existing pathname + '/' + 'a' = boom.

Good.

> Looks like if I do this..
>
> if (isdigit(newpath[len]) != 0) {
> newpath[len] = '/';
> newpath[len+1] = 'A';
> newpath[len+2] = 0;
>
> no bug.

Well, but that will never trigger. newpath[len] will always be NUL, so
you just disabled things entirely. Use "len-1".

So I don't think that did what you meant it to do.

Linus
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