Date: Tue, 19 Jan 1999 09:21:00 +1100 From: Bruce Evans <bde@zeta.org.au> To: green@unixhelp.org, mike@smith.net.au Cc: current@FreeBSD.ORG, dillon@apollo.backplane.com, julian@whistle.com Subject: Re: kernel malloc and M_CANWAIT Message-ID: <199901182221.JAA18722@godzilla.zeta.org.au>
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>Look at the void () functions that call malloc/MALLOC. Also, commit the
>attached patch; it was OKed by Bruce to disallow this, but he seems to forget
>to commit it.
It is queued behind 10-100 other patches.
>--- src/sys/kern/vfs_syscalls.c.orig Fri Dec 25 22:27:21 1998
>+++ src/sys/kern/vfs_syscalls.c Fri Dec 25 22:28:12 1998
>@@ -2909,6 +2909,10 @@
> if (error = namei(&nd))
> return (error);
> vp = nd.ni_vp;
>+ if (vp->v_type == VFIFO) {
>+ error = EINVAL;
>+ goto out;
>+ }
> if (error = VOP_GETATTR(vp, &vattr, p->p_ucred, p))
> goto out;
> if (p->p_ucred->cr_uid != vattr.va_uid &&
Actually, the patch from Lite1 is queued. It also backs out support
for revoke of everything except cdevs and bdevs. I don't have time to
check what happens for regular files, pipes and sockets...
Bruce
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