Hi,
It seems to me that supplementary groups should be taken into account
when checking for permissions on a tun device. Can someone comment on
my patch below; is it a reasonable approach? If so, I'd like to
submit it for inclusion in the kernel under the GPL.
Please forward any responses to me directly in addition to the lkml.
Mike
--- tun.c 2007-11-16 10:14:27.000000000 -0800
+++ tun.c.new 2007-11-21 16:12:15.000000000 -0800
@@ -471,7 +471,8 @@
if (((tun->owner != -1 &&
current->euid != tun->owner) ||
(tun->group != -1 &&
- current->egid != tun->group)) &&
+ (current->egid != tun->group &&
+ !groups_search(current->group_info, tun->group)))) &&
!capable(CAP_NET_ADMIN))
return -EPERM;
}
-
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/
[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]
