Re: group ownership of tun devices -- nonfunctional?

From: Rene Herman
Date: Sun Aug 19 2007 - 12:36:19 EST


On 08/19/2007 06:05 PM, Bodo Eggert wrote:

IMHO the check is broken:

+ if (((tun->owner != -1 &&
+ current->euid != tun->owner) ||
+ (tun->group != -1 &&
+ current->egid != tun->group)) &&
+ !capable(CAP_NET_ADMIN))
return -EPERM;

It should be something like:

+ if (!((tun->owner == tun->owner) ||
+ (tun->group == tun->group) ||

???

+ capable(CAP_NET_ADMIN)))
return -EPERM;

Please verify and forward to the maintainers if my guess appears to be correct.

Rene.
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