Re: [patch 0/8] unprivileged mount syscall

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 [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 0/8] unprivileged mount syscall
    • From: "H. Peter Anvin" <[email protected]>

• References:
  • Re: [patch 0/8] unprivileged mount syscall
    • From: Andrew Morton <[email protected]>
  • Re: [patch 0/8] unprivileged mount syscall
    • From: "H. Peter Anvin" <[email protected]>

• Prev by Date: [patch 2/4] clean up identify_cpu
• Next by Date: Re: [PATCH] [sched] redundant reschedule when set_user_nice() boosts a prio of a task from the "expired" array
• Previous by thread: Re: [patch 0/8] unprivileged mount syscall
• Next by thread: Re: [patch 0/8] unprivileged mount syscall
• 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]