Messages in this thread | | | Date | Fri, 7 Dec 2012 21:35:20 +0000 | From | Alan Cox <> | Subject | Re: [PATCH 0/3] Add O_DENY* flags to fcntl and cifs |
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> The problem is the possibility of denial-of-service attacks here. We > can try to prevent them by: > 1) specifying an extra security bit on the file that indicates that > share flags are accepted (like we have for mandatory locks now) and > setting it for neccessary files only, or > 2) adding a special mount option (but it it probably makes sense if we > decided to add this support for CIFS and NFS only).
3) making it a property that the process opts into - the same fs can have Linux and wine users at once.
But for such a big set of changes and with the kind of potential fallout you need to demonstrate a good practical use case IMHO, not just a "neat idea I had".
Alan
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