Messages in this thread | | | Date | Sat, 7 Apr 2007 01:55:44 +0200 (MEST) | From | Jan Engelhardt <> | Subject | Re: [patch 0/8] unprivileged mount syscall |
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On Apr 6 2007 16:16, H. Peter Anvin wrote: >> > >> > - users can use bind mounts without having to pre-configure them in >> > /etc/fstab >> > > > This is by far the biggest concern I see. I think the security implication of > allowing anyone to do bind mounts are poorly understood.
$ whoami miklos $ mount --bind / ~/down_under
later that day: # userdel -r miklos
So both the source (/) and target (~/down_under) directory must be owned by the user before --bind may succeed.
There may be other implications hpa might want to fill us in.
Regards, Jan -- - 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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