Re: NFSv3 support (bugs, some fixes, and more)

Jamie Lokier (lkd@tantalophile.demon.co.uk)
Tue, 13 Jul 1999 19:53:34 +0200

Messages sorted by: [ date ][ thread ][ subject ][ author ]
Next message: Tracy Xiaodi Lu: "UDP sendto/recvfrom error"
Previous message: Steve Bradshaw: "Problem with memmap file with SMP"

ben fleis wrote:
> > Ultimately, however, it's probably a pragmatic/security issue if a rogue
> > NFS server can confuse the Linux kernel into a less-than-stable state by
> > reusing fileids with different handles.
>
> this would definitely be a problem --- imagine deleting a file and having
> the inode number reused within the same NFS session. this is far from
> impossible, and should be handled gracefully.

Data point: 2.2.10 returns "I/O error" when an NFS server returns two
different handles with the same fileid. I don't know if there are any
bad side effects, but the kernel is still running ok.

I found this by writing a buggy NFS server :)

-- Jamie

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

Next message: Tracy Xiaodi Lu: "UDP sendto/recvfrom error"
Previous message: Steve Bradshaw: "Problem with memmap file with SMP"