Re: Linux 2.1.125 doesn't dump core on SIGSEGV
Alan Cox (alan@lxorguk.ukuu.org.uk)
Tue, 20 Oct 1998 14:15:25 +0100 (BST)
> > I think this is probably best solved by stat'ing `core' before:
> >
> > dentry = open_namei(corefile, O_CREAT | 2 | O_TRUNC, 0600);
> > ...
>
> Why not unlinking (removing) core before just like any suid root userspace
> program should do before writing anything?
There is an implicit race in doing this. Also suid programs dont dump core.
Just 'real' root stuff. The results are as bad however
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