Messages in this thread | | | Subject | Re: [RFC/PATCH] revoke/frevoke system calls V2 | From | Alan Cox <> | Date | Wed, 09 Aug 2006 19:35:48 +0100 |
| |
Ar Mer, 2006-08-09 am 20:00 +0200, ysgrifennodd Edgar Toernig: > And killing them is not OK? "fuser -km /dev/cdrom" already covers both > cases, mounted somewhere and opened for special access.
fuser is quite easy to race, it doesn't handle all sorts of corner cases like namespaces either. Its a crude blunt instrument that sometimes works and is very slow.
> Sorry if I sound a little bit anal. IMO, a generic revoke is a pretty > sharp sword which is given to ordinary users and I have a very uneasy > feeling. They can dig in the innards of other people's processes - a > clean headshot by root is something different ...
I can see your concern about arbitary files, but I'm not sure it holds simply because the tricks already exist via other methods.
- 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/
| |