Re: Linux 2.1.125 doesn't dump core on SIGSEGV

Kev (klmitch@mit.edu)
Tue, 20 Oct 1998 16:09:10 EDT

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> > > 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

Even from inside the kernel?

-- Kevin L. Mitchell <klmitch@mit.edu> ------------------------- -. .---- --.. ..- -..- -------------------------- http://web.mit.edu/klmitch/www/ (PGP5 keys availiable from here) DSS Key ID ED0DB34E: D9BF 0E74 FDCB 43F5 C597 878F 9455 EC24 ED0D B34E DH Key ID 2A2C31D4: 1A77 4BA5 9E32 14AE 87DA 9FEC 7106 FC62 2A2C 31D4

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Next message: Mitchell Blank Jr: "Re: [patch] jiffies wraparound [Re: 2.1.125 Show stopper list: Draft]"
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