Re: [PATCH] private mounts

On Wed, 2005-04-27 at 10:47, Miklos Szeredi wrote:
> > I think you need to disallow overmounts on invisible mounts by any user
> > other than the owner. If not, some other user (including root) can
> > overmount on your mount and the user will end up with DoS.
> 
> I'm not following you here.  How would an overmount cause DoS?

eg:
 
user 1 does a invisible mount on /mnt/mnt1
root does a visible mount on /mnt/mnt1

user 1 will no longer be able to access his /mnt/mnt1

in fact even if root mounts something on /mnt, the problem still exists.

RP

> 
> Thanks,
> Miklos

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

---

• Follow-Ups:
  • Re: [PATCH] private mounts
    • From: Miklos Szeredi <[email protected]>

• References:
  • Re: [PATCH] private mounts
    • From: Christoph Hellwig <[email protected]>
  • Re: [PATCH] private mounts
    • From: Pavel Machek <[email protected]>
  • Re: [PATCH] private mounts
    • From: Miklos Szeredi <[email protected]>
  • Re: [PATCH] private mounts
    • From: Pavel Machek <[email protected]>
  • Re: [PATCH] private mounts
    • From: Miklos Szeredi <[email protected]>
  • Re: [PATCH] private mounts
    • From: Pavel Machek <[email protected]>
  • Re: [PATCH] private mounts
    • From: Miklos Szeredi <[email protected]>
  • Re: [PATCH] private mounts
    • From: Miklos Szeredi <[email protected]>
  • Re: [PATCH] private mounts
    • From: Martin Mares <[email protected]>
  • Re: [PATCH] private mounts
    • From: Lars Marowsky-Bree <[email protected]>
  • Re: [PATCH] private mounts
    • From: Miklos Szeredi <[email protected]>
  • Re: [PATCH] private mounts
    • From: Ram <[email protected]>
  • Re: [PATCH] private mounts
    • From: Miklos Szeredi <[email protected]>

• Prev by Date: Re: [PATCH] private mounts
• Next by Date: Re: [patch] fix the 2nd buffer race properly
• Previous by thread: Re: [PATCH] private mounts
• Next by thread: Re: [PATCH] private mounts
• Index(es):
  • Date
  • Thread

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]