Messages in this thread |  | | | Date | Tue, 10 Jul 2007 09:10:48 -0400 (EDT) | | From | James Morris <> | | Subject | Re: [PATCH 09/11] security: Protection for exploiting null dereference using mmap |
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On Tue, 10 Jul 2007, Jan Engelhardt wrote:
> > On Jul 8 2007 22:59, James Morris wrote: > >@@ -420,8 +420,12 @@ static int dummy_file_ioctl (struct file *file, unsigned int command, > > > > static int dummy_file_mmap (struct file *file, unsigned long reqprot, > > unsigned long prot, > >- unsigned long flags) > >+ unsigned long flags, > >+ unsigned long addr, > >+ unsigned long addr_only) > > { > >+ if (addr < mmap_min_addr) > >+ return -EACCES; > > return 0; > > } > > > > Not -EPERM?
No, EACCES is what's used.
-- James Morris <jmorris@namei.org> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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