[haiku-bugs] Re: [Haiku] #6280: Long network interface names cause problems
- From: "axeld" <trac@xxxxxxxxxxxx>
- Date: Thu, 22 Jul 2010 12:37:06 -0000
#6280: Long network interface names cause problems
---------------------------------+------------------------------------------
Reporter: atis.elsts | Owner: nobody
Type: bug | Status: closed
Priority: normal | Milestone: R1
Component: Network & Internet | Version: R1/alpha2
Resolution: fixed | Keywords:
Blocked By: | Has a Patch: 0
Platform: All | Blocking:
---------------------------------+------------------------------------------
Changes (by axeld):
* status: new => closed
* resolution: => fixed
Old description:
> There is a potential crash when the length of an interface name is equal
> to IF_NAMESIZE. In this case the C string in the ifr_name field may not
> be null-terminated. This situation should be taken in account everywhere
> when the struct ifreq is used in the kernel and in the userspace.
>
> To repeat: try to configure intarface alias with name
> '/dev/net/etherpci/0:123456789012':
> ifconfig /dev/net/etherpci/0:123456789012 1.2.3.4
New description:
There is a potential crash when the length of an interface name is equal
to IF_NAMESIZE. In this case the C string in the ifr_name field may not be
null-terminated. This situation should be taken in account everywhere when
the struct ifreq is used in the kernel and in the userspace.
To repeat: try to configure intarface alias with name
'/dev/net/etherpci/0:123456789012':
{{{
ifconfig /dev/net/etherpci/0:123456789012 1.2.3.4
}}}
--
Comment:
Since the kernel would only cut off the extra bytes, I've just fixed the
userland tools to fail earlier with the "interface name too long" message
in r37689.
--
Ticket URL: <http://dev.haiku-os.org/ticket/6280#comment:1>
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